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# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = | tensor(inpv, dtype=inp_dtype) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = | Parameter(wv, dtype=w_dtype) | megengine.Parameter |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = | Parameter(bv, dtype=b_dtype) | megengine.Parameter |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = | F.flatten(expected) | megengine.functional.flatten |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = | F.flatten(result) | megengine.functional.flatten |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
| get_device_count("gpu") | megengine.device.get_device_count |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = | dtype.get_scale(inp_dtype) | megengine.core.tensor.dtype.get_scale |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = | dtype.get_scale(w_dtype) | megengine.core.tensor.dtype.get_scale |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = | dtype.get_scale(b_dtype) | megengine.core.tensor.dtype.get_scale |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = | dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype) | megengine.core.tensor.dtype.convert_to_qint8 |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = | dtype.convert_to_qint8(w_v * w_scale, w_dtype) | megengine.core.tensor.dtype.convert_to_qint8 |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = | dtype.convert_to_qint32(b_v * b_scale, b_dtype) | megengine.core.tensor.dtype.convert_to_qint32 |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = | tensor(inpv, dtype=inp_dtype) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = | Parameter(wv, dtype=w_dtype) | megengine.Parameter |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = | Parameter(bv, dtype=b_dtype) | megengine.Parameter |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = | F.flatten(expected) | megengine.functional.flatten |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = | F.flatten(result) | megengine.functional.flatten |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif( | get_device_count("gpu") | megengine.device.get_device_count |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return | F.cond_take(mask, data) | megengine.functional.cond_take |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = | tensor(x_np) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = | tensor(mask_np) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = | F.zeros((100, 100)) | megengine.functional.zeros |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = | F.argmax(x, axis=0) | megengine.functional.argmax |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = | F.zeros((100, 100)) | megengine.functional.zeros |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = | F.argmin(x, axis=0) | megengine.functional.argmin |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
| tensor(inp) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
| tensor(rois) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
| tensor(trans) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal( | F.ones(shp) | megengine.functional.ones |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = | F.zeros(shape, dtype=np.float32) | megengine.functional.zeros |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = | F.zeros(shape, dtype=np.float32) | megengine.functional.zeros |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = | F.utils._assert_equal(x, y) | megengine.functional.utils._assert_equal |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
| tensor(inp) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
| tensor(inp) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad( | tensor(src) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad( | tensor(src) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad( | tensor(src) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad( | tensor(src) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle( | tensor(inp) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle( | tensor(inp) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle( | tensor(inp) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle( | tensor(inp) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle( | tensor(inp) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
@pytest.mark.parametrize("is_symbolic", [False, True])
def test_pixel_shuffle_symbolic(is_symbolic):
def fn(inp, upscale_factor):
return | F.pixel_shuffle(inp, upscale_factor=upscale_factor) | megengine.functional.pixel_shuffle |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
@pytest.mark.parametrize("is_symbolic", [False, True])
def test_pixel_shuffle_symbolic(is_symbolic):
def fn(inp, upscale_factor):
return F.pixel_shuffle(inp, upscale_factor=upscale_factor)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
inp = tensor(np.arange(3 * 4 * 5 * 5).reshape(3, 4, 5, 5))
golden = pixel_shuffle(inp, 2)
for _ in range(3):
out = fn(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
if is_symbolic is None:
break
def test_set_conv2d_config():
"""check setting config by contextmanager is equal to manually converted result"""
config._compute_mode = "float32"
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float16)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float16)
config_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
config._compute_mode = "default"
with | config._override(compute_mode="float32") | megengine.config._override |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
@pytest.mark.parametrize("is_symbolic", [False, True])
def test_pixel_shuffle_symbolic(is_symbolic):
def fn(inp, upscale_factor):
return F.pixel_shuffle(inp, upscale_factor=upscale_factor)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
inp = tensor(np.arange(3 * 4 * 5 * 5).reshape(3, 4, 5, 5))
golden = pixel_shuffle(inp, 2)
for _ in range(3):
out = fn(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
if is_symbolic is None:
break
def test_set_conv2d_config():
"""check setting config by contextmanager is equal to manually converted result"""
config._compute_mode = "float32"
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float16)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float16)
config_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
config._compute_mode = "default"
with config._override(compute_mode="float32"):
context_out = | F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1) | megengine.functional.conv2d |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
@pytest.mark.parametrize("is_symbolic", [False, True])
def test_pixel_shuffle_symbolic(is_symbolic):
def fn(inp, upscale_factor):
return F.pixel_shuffle(inp, upscale_factor=upscale_factor)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
inp = tensor(np.arange(3 * 4 * 5 * 5).reshape(3, 4, 5, 5))
golden = pixel_shuffle(inp, 2)
for _ in range(3):
out = fn(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
if is_symbolic is None:
break
def test_set_conv2d_config():
"""check setting config by contextmanager is equal to manually converted result"""
config._compute_mode = "float32"
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float16)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float16)
config_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
config._compute_mode = "default"
with config._override(compute_mode="float32"):
context_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
expected = F.conv2d(
inp, weight, None, (2, 2), (3, 3), (1, 1), 1, compute_mode="float32",
)
np.testing.assert_allclose(config_out.numpy(), expected.numpy())
np.testing.assert_allclose(context_out.numpy(), expected.numpy())
def test_set_warp_perspective_config():
config._conv_format = "NHWC"
inp_shape = (1, 1, 4, 4)
inp = Tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
M_shape = (1, 3, 3)
M = Tensor(np.random.randn(3, 3), dtype=np.float32).reshape(M_shape)
config_out = F.vision.warp_perspective(inp, M, (2, 2))
config._conv_format = "default"
with | config._override(conv_format="NHWC") | megengine.config._override |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
@pytest.mark.parametrize("is_symbolic", [False, True])
def test_pixel_shuffle_symbolic(is_symbolic):
def fn(inp, upscale_factor):
return F.pixel_shuffle(inp, upscale_factor=upscale_factor)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
inp = tensor(np.arange(3 * 4 * 5 * 5).reshape(3, 4, 5, 5))
golden = pixel_shuffle(inp, 2)
for _ in range(3):
out = fn(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
if is_symbolic is None:
break
def test_set_conv2d_config():
"""check setting config by contextmanager is equal to manually converted result"""
config._compute_mode = "float32"
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float16)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float16)
config_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
config._compute_mode = "default"
with config._override(compute_mode="float32"):
context_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
expected = F.conv2d(
inp, weight, None, (2, 2), (3, 3), (1, 1), 1, compute_mode="float32",
)
np.testing.assert_allclose(config_out.numpy(), expected.numpy())
np.testing.assert_allclose(context_out.numpy(), expected.numpy())
def test_set_warp_perspective_config():
config._conv_format = "NHWC"
inp_shape = (1, 1, 4, 4)
inp = Tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
M_shape = (1, 3, 3)
M = Tensor(np.random.randn(3, 3), dtype=np.float32).reshape(M_shape)
config_out = F.vision.warp_perspective(inp, M, (2, 2))
config._conv_format = "default"
with config._override(conv_format="NHWC"):
context_out = | F.vision.warp_perspective(inp, M, (2, 2)) | megengine.functional.vision.warp_perspective |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
@pytest.mark.parametrize("is_symbolic", [False, True])
def test_pixel_shuffle_symbolic(is_symbolic):
def fn(inp, upscale_factor):
return F.pixel_shuffle(inp, upscale_factor=upscale_factor)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
inp = tensor(np.arange(3 * 4 * 5 * 5).reshape(3, 4, 5, 5))
golden = pixel_shuffle(inp, 2)
for _ in range(3):
out = fn(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
if is_symbolic is None:
break
def test_set_conv2d_config():
"""check setting config by contextmanager is equal to manually converted result"""
config._compute_mode = "float32"
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float16)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float16)
config_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
config._compute_mode = "default"
with config._override(compute_mode="float32"):
context_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
expected = F.conv2d(
inp, weight, None, (2, 2), (3, 3), (1, 1), 1, compute_mode="float32",
)
np.testing.assert_allclose(config_out.numpy(), expected.numpy())
np.testing.assert_allclose(context_out.numpy(), expected.numpy())
def test_set_warp_perspective_config():
config._conv_format = "NHWC"
inp_shape = (1, 1, 4, 4)
inp = Tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
M_shape = (1, 3, 3)
M = Tensor(np.random.randn(3, 3), dtype=np.float32).reshape(M_shape)
config_out = F.vision.warp_perspective(inp, M, (2, 2))
config._conv_format = "default"
with config._override(conv_format="NHWC"):
context_out = F.vision.warp_perspective(inp, M, (2, 2))
expected = F.vision.warp_perspective(inp, M, (2, 2), format="NHWC")
np.testing.assert_allclose(config_out.numpy(), expected.numpy())
np.testing.assert_allclose(context_out.numpy(), expected.numpy())
@pytest.mark.parametrize("stride", [(1, 1)])
@pytest.mark.parametrize("padding", [(1, 1)])
@pytest.mark.parametrize("dilation", [(1, 1)])
@pytest.mark.parametrize("ksize", [(3, 3)])
@pytest.mark.parametrize("groups", [1, 2])
def test_local_conv2d(stride, padding, dilation, ksize, groups):
batch_size, in_channels, out_channels = 2, 4, 8
input_height, input_width = 10, 10
output_height = (input_height + padding[0] * 2 - ksize[0]) // stride[0] + 1
output_width = (input_width + padding[1] * 2 - ksize[1]) // stride[1] + 1
def local_conv2d_np(data, weight, stride, padding, dialtion):
# naive calculation use numpy
# only test output_height == input_height, output_width == input_width
data = np.pad(data, ((0, 0), (0, 0), (1, 1), (1, 1)))
expected = np.zeros(
(batch_size, out_channels, output_height, output_width), dtype=np.float32,
)
ic_group_size = in_channels // groups
oc_group_size = out_channels // groups
for n, oc, oh, ow in itertools.product(
*map(range, [batch_size, out_channels, output_height, output_width])
):
ih, iw = oh * stride[0], ow * stride[1]
g_id = oc // oc_group_size
expected[n, oc, ih, iw] = np.sum(
data[
n,
g_id * ic_group_size : (g_id + 1) * ic_group_size,
ih : ih + ksize[0],
iw : iw + ksize[1],
]
* weight[g_id, oh, ow, :, :, :, oc % oc_group_size]
)
return expected
data = np.random.rand(batch_size, in_channels, input_height, input_width).astype(
"float32"
)
weight = np.random.rand(
groups,
output_height,
output_width,
in_channels // groups,
*ksize,
out_channels // groups,
).astype("float32")
output = F.local_conv2d(
| tensor(data) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
@pytest.mark.parametrize("is_symbolic", [False, True])
def test_pixel_shuffle_symbolic(is_symbolic):
def fn(inp, upscale_factor):
return F.pixel_shuffle(inp, upscale_factor=upscale_factor)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
inp = tensor(np.arange(3 * 4 * 5 * 5).reshape(3, 4, 5, 5))
golden = pixel_shuffle(inp, 2)
for _ in range(3):
out = fn(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
if is_symbolic is None:
break
def test_set_conv2d_config():
"""check setting config by contextmanager is equal to manually converted result"""
config._compute_mode = "float32"
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float16)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float16)
config_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
config._compute_mode = "default"
with config._override(compute_mode="float32"):
context_out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
expected = F.conv2d(
inp, weight, None, (2, 2), (3, 3), (1, 1), 1, compute_mode="float32",
)
np.testing.assert_allclose(config_out.numpy(), expected.numpy())
np.testing.assert_allclose(context_out.numpy(), expected.numpy())
def test_set_warp_perspective_config():
config._conv_format = "NHWC"
inp_shape = (1, 1, 4, 4)
inp = Tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
M_shape = (1, 3, 3)
M = Tensor(np.random.randn(3, 3), dtype=np.float32).reshape(M_shape)
config_out = F.vision.warp_perspective(inp, M, (2, 2))
config._conv_format = "default"
with config._override(conv_format="NHWC"):
context_out = F.vision.warp_perspective(inp, M, (2, 2))
expected = F.vision.warp_perspective(inp, M, (2, 2), format="NHWC")
np.testing.assert_allclose(config_out.numpy(), expected.numpy())
np.testing.assert_allclose(context_out.numpy(), expected.numpy())
@pytest.mark.parametrize("stride", [(1, 1)])
@pytest.mark.parametrize("padding", [(1, 1)])
@pytest.mark.parametrize("dilation", [(1, 1)])
@pytest.mark.parametrize("ksize", [(3, 3)])
@pytest.mark.parametrize("groups", [1, 2])
def test_local_conv2d(stride, padding, dilation, ksize, groups):
batch_size, in_channels, out_channels = 2, 4, 8
input_height, input_width = 10, 10
output_height = (input_height + padding[0] * 2 - ksize[0]) // stride[0] + 1
output_width = (input_width + padding[1] * 2 - ksize[1]) // stride[1] + 1
def local_conv2d_np(data, weight, stride, padding, dialtion):
# naive calculation use numpy
# only test output_height == input_height, output_width == input_width
data = np.pad(data, ((0, 0), (0, 0), (1, 1), (1, 1)))
expected = np.zeros(
(batch_size, out_channels, output_height, output_width), dtype=np.float32,
)
ic_group_size = in_channels // groups
oc_group_size = out_channels // groups
for n, oc, oh, ow in itertools.product(
*map(range, [batch_size, out_channels, output_height, output_width])
):
ih, iw = oh * stride[0], ow * stride[1]
g_id = oc // oc_group_size
expected[n, oc, ih, iw] = np.sum(
data[
n,
g_id * ic_group_size : (g_id + 1) * ic_group_size,
ih : ih + ksize[0],
iw : iw + ksize[1],
]
* weight[g_id, oh, ow, :, :, :, oc % oc_group_size]
)
return expected
data = np.random.rand(batch_size, in_channels, input_height, input_width).astype(
"float32"
)
weight = np.random.rand(
groups,
output_height,
output_width,
in_channels // groups,
*ksize,
out_channels // groups,
).astype("float32")
output = F.local_conv2d(
tensor(data),
| tensor(weight) | megengine.tensor |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = | F.nn.dropout(data, rate, training=True) | megengine.functional.nn.dropout |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = | F.nn.dropout(data, rate, training=True) | megengine.functional.nn.dropout |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = | F.nn.dropout(out1, rate, training=True) | megengine.functional.nn.dropout |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = | F.nn.dropout(out2, rate, training=True) | megengine.functional.nn.dropout |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = | jit.trace(symbolic=is_symbolic) | megengine.jit.trace |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
| F.vision.interpolate(inp, scale_factor=2.0, mode="linear") | megengine.functional.vision.interpolate |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
| F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear") | megengine.functional.vision.interpolate |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = | Grad() | megengine.core.autodiff.grad.Grad |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor( | F.ones_like(out_feat) | megengine.functional.ones_like |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = | Grad() | megengine.core.autodiff.grad.Grad |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor( | F.ones_like(out_feat) | megengine.functional.ones_like |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = | Grad() | megengine.core.autodiff.grad.Grad |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor( | F.ones_like(out_feat) | megengine.functional.ones_like |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = | Grad() | megengine.core.autodiff.grad.Grad |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor( | F.ones_like(outp) | megengine.functional.ones_like |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = | Grad() | megengine.core.autodiff.grad.Grad |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor( | F.ones_like(outp) | megengine.functional.ones_like |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = | jit.trace(symbolic=is_symbolic) | megengine.jit.trace |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = | F.transpose(var, (0, 1, 3, 4, 2)) | megengine.functional.transpose |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if | is_cuda_available() | megengine.is_cuda_available |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = | F.transpose(result, (0, 1, 4, 2, 3)) | megengine.functional.transpose |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = | F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None) | megengine.functional.conv2d |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = | jit.trace(symbolic=is_symbolic) | megengine.jit.trace |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return F.relu(O)
else:
return O
def run_conv_bias(inp, w, b, format="NCHW"):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
if format == "NCHW4":
inp = convert_to_nchw4(inp)
w = convert_to_nchw4(w)
b = convert_to_nchw4(b)
return F.quantized.conv_bias_activation(
inp,
w,
b,
stride=(SH, SW),
padding=(PH, PW),
dtype=out_dtype,
nonlinear_mode=nonlinear_mode,
)
format = "NCHW4" if is_cuda_available() else "NCHW"
expected = run_conv2d(inp_fp32, w_fp32, b_fp32)
expected = expected.astype(out_dtype).astype("float32")
result = run_conv_bias(inp_int8, w_int8, b_int32, format=format).astype(
"float32"
)
if format == "NCHW4":
result = F.transpose(result, (0, 1, 4, 2, 3))
expected = F.flatten(expected)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1, False)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1, False)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False)
run(1, 4, 4, 24, 33, 1, 1, 2, 3, 1, 1)
run(10, 12, 24, 46, 46, 1, 1, 2, 1, 3, 1)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2)
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, False, "relu")
run(10, 36, 8, 46, 26, 2, 2, 2, 1, 1, 2, True, "relu")
@pytest.mark.skipif(get_device_count("gpu") > 0, reason="no int8 algorithm on cuda")
def test_batch_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N, IC, OC, IH, IW, KH, KW, PH, PW, SH, SW, has_bias=True,
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(N, OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def run_batch_conv_bias(inp, w, b):
b = b if has_bias else Parameter(np.zeros_like(b.numpy()))
result = F.quantized.batch_conv_bias_activation(
inp, w, b, stride=(SH, SW), padding=(PH, PW), dtype=out_dtype,
)
return result.astype("float32")
expected = F.conv2d(inp_fp32, w_fp32[0], b_fp32 if has_bias else None)[0]
expected = expected.astype(out_dtype).astype("float32")
expected = F.flatten(expected)
result = run_batch_conv_bias(inp_int8, w_int8, b_int32)
result = F.flatten(result)
np.testing.assert_allclose(result.numpy(), expected.numpy(), atol=outp_scale)
run(1, 4, 4, 5, 5, 3, 3, 0, 0, 1, 1, True)
def test_conv2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
inp = tensor(np.random.randn(1, 3, 224, 224), dtype=np.float32)
weight = tensor(np.random.randn(64, 3, 7, 7), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
amp.enabled = False
expected = F.conv2d(
inp.astype("float16"),
weight.astype("float16"),
None,
(2, 2),
(3, 3),
(1, 1),
1,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv2d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3), dtype=np.float32)
out = F.conv2d(inp, weight, None, (2, 2), (3, 3), (1, 1), 1)
def test_conv3d_zero_stride_numpy_array():
inp = np.random.randn(3, 224, 224, 224).astype(np.float32)
inp = inp[np.newaxis, :]
inp = tensor(inp, dtype=np.float32)
weight = tensor(np.random.randn(16, 3, 3, 3, 3), dtype=np.float32)
out = F.conv3d(inp, weight, None, (2, 2, 2), (3, 3, 3), (1, 1, 1), 1)
out.numpy()
def test_conv1d():
inp = tensor(np.ones((2, 2, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2), dtype=np.float32))
out = F.conv1d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(),
np.array(
[[[4, 4], [4, 4], [4, 4]], [[4, 4], [4, 4], [4, 4]]], dtype=np.float32
),
)
def test_batchnorm2d_autocast():
"""check amp's result is equal to manually converted result"""
amp.enabled = True
tshape = (1, 3, 224, 224)
pshape = (1, 3, 1, 1)
inp = tensor(np.random.randn(*tshape), dtype=np.float32)
weight = tensor(np.ones(pshape, dtype=np.float32))
bias = tensor(np.zeros(pshape, dtype=np.float32))
out = F.batch_norm(inp, weight=weight, bias=bias, training=True, inplace=False)
amp.enabled = False
expected = F.batch_norm(
inp.astype("float16"),
weight=weight,
bias=bias,
training=True,
inplace=False,
compute_mode="float32",
)
assert out.dtype == np.float16
assert expected.dtype == np.float16
np.testing.assert_allclose(out.numpy(), expected.numpy())
def test_conv3d():
inp = tensor(np.ones((2, 2, 4, 4, 4), dtype=np.float32))
weight = tensor(np.ones((3, 2, 2, 2, 2), dtype=np.float32))
out = F.conv3d(inp, weight, None, 2, 0, 1, 1)
np.testing.assert_equal(
out.numpy(), np.ones((2, 3, 2, 2, 2), dtype=np.float32) * 16
)
def test_condtake():
x = np.array([[1, 2, 3], [4, 5, 6]])
y = np.array([[True, False, True], [False, True, True]])
xx = tensor(x)
yy = tensor(y)
val, idx = F.cond_take(yy, xx)
np.testing.assert_equal(val.numpy(), x[y])
np.testing.assert_equal(idx.numpy(), np.where(y.reshape(-1))[0])
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_condtake(is_symbolic):
shapes = [
(3, 3, 3),
(0,),
(3, 0, 3),
]
def fn(mask, data):
return F.cond_take(mask, data)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
for shp in shapes:
x_np = np.random.randn(*shp).astype("float32")
mask_np = x_np > 0
x = tensor(x_np)
mask = tensor(mask_np)
ref_out = x_np[mask_np]
ref_idx = mask_np.flatten().nonzero()[0]
for i in range(3):
out, idx = fn(mask, x)
np.testing.assert_equal(out.numpy(), ref_out)
np.testing.assert_equal(idx.numpy(), ref_idx)
if is_symbolic is None:
break
def test_condtake_is_same():
op1 = builtin.CondTake()
op2 = builtin.CondTake()
assert op1 == op2
def test_nms_is_same():
op1 = builtin.NMSKeep(0.7, 100)
op2 = builtin.NMSKeep(0.7, 100)
op3 = builtin.NMSKeep(0.8, 100)
op4 = builtin.NMSKeep(0.7, 200)
assert op1 == op2
assert op1 != op3
assert op1 != op4
assert op3 != op4
def test_argmxx_on_inf():
def run_argmax():
x = F.zeros((100, 100))
x[:] = -float("inf")
idxs = F.argmax(x, axis=0)
return idxs
def run_argmin():
x = F.zeros((100, 100))
x[:] = float("inf")
idxs = F.argmin(x, axis=0)
return idxs
assert all(run_argmax() >= 0)
assert all(run_argmin() >= 0)
def test_deformable_psroi_pooling():
inp = np.random.random((1, 256, 64, 64)).astype("float32")
rois = np.random.random((1, 5)).astype("float32")
trans = np.random.random((24, 2, 7, 7)).astype("float32")
pooled_h = 7
pooled_w = 7
sample_per_part = 4
no_trans = False
part_size = 7
spatial_scale = 1.0 / 64
trans_std = 0.1
y = F.deformable_psroi_pooling(
tensor(inp),
tensor(rois),
tensor(trans),
no_trans,
part_size,
pooled_h,
pooled_w,
sample_per_part,
spatial_scale,
trans_std,
)
def test_cvt_color():
def rgb2gray(rgb):
return np.dot(rgb[..., :3], [0.299, 0.587, 0.114])
def bgr2gray(bgr):
return np.dot(bgr[..., :3], [0.114, 0.587, 0.299])
inp = np.random.randn(3, 3, 3, 3).astype(np.float32)
out = np.expand_dims(rgb2gray(inp), 3).astype(np.float32)
x = tensor(inp)
y = F.vision.cvt_color(x, mode="RGB2GRAY")
np.testing.assert_allclose(y.numpy(), out, atol=1e-5)
out1 = np.expand_dims(bgr2gray(inp), 3).astype(np.float32)
y1 = F.vision.cvt_color(x, mode="BGR2GRAY")
np.testing.assert_allclose(y1.numpy(), out1, atol=1e-5)
@pytest.mark.parametrize("val", [2, [2,], [2, 3]])
def test_ones(val):
shp = tensor(val)
np_shp = np.array(val)
np.testing.assert_equal(F.ones(shp), np.ones(np_shp))
def test_assert_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.00001
z = F.utils._assert_equal(x, y)
def test_assert_not_equal():
shape = (2, 3, 4, 5)
x = F.ones(shape, dtype=np.float32)
y = F.zeros(shape, dtype=np.float32) + 1.1
with pytest.raises(RuntimeError):
z = F.utils._assert_equal(x, y)
def test_neg_axis():
x = tensor(np.random.normal(0, 1, (32, 5)))
y = F.argmax(x, axis=-1)
yy = F.argmax(x, axis=1)
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmax(x, axis=(-1, -2))
yy = F.argmax(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
y = F.argmin(x, axis=(-1, -2))
yy = F.argmin(x, axis=(0, 1))
np.testing.assert_equal(y.numpy(), yy.numpy())
def test_sliding_window():
N, C, H, W = 2, 3, 7, 8
inp = np.random.normal(size=(N, C, H, W))
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp_pad = np.zeros((N, C, H + ph * 2, W + pw * 2))
inp_pad[:, :, ph : H + ph, pw : W + pw] = inp
gt_out = np.empty(
(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww), dtype=np.float32
)
for n, c, oh, ow in itertools.product(*map(range, gt_out.shape[:4])):
ih, iw = oh * sh, ow * sw
gt_out[n, c, oh, ow, :] = inp_pad[
n, c, ih : ih + (wh - 1) * dh + 1 : dh, iw : iw + (ww - 1) * dw + 1 : dw
]
out = F.sliding_window(
tensor(inp), (wh, ww), padding=(ph, pw), stride=(sh, sw), dilation=(dh, dw)
)
np.testing.assert_equal(gt_out, out.numpy())
def test_sliding_window_transpose():
N, C, H, W = 2, 3, 7, 8
ph, pw = 1, 2
sh, sw = 2, 1
wh, ww = 3, 2
dh, dw = 1, 3
s = lambda i, p, s, d, w: (i + p * 2 - (w - 1) * d - 1) // s + 1
inp = np.random.normal(
size=(N, C, s(H, ph, sh, dh, wh), s(W, pw, sw, dw, ww), wh, ww)
).astype(np.float32)
gt_out = np.zeros((N, C, H, W), dtype=np.float32)
for n, c in itertools.product(*map(range, inp.shape[:2])):
oh = 0
for ih in range(-ph, H + ph - dh * (wh - 1), sh):
ow = 0
for iw in range(-pw, W + pw - dw * (ww - 1), sw):
for kh, kw in itertools.product(*map(range, inp.shape[-2:])):
ih2 = ih + dh * kh
iw2 = iw + dw * kw
if ih2 >= 0 and ih2 < H and iw2 >= 0 and iw2 < W:
gt_out[n, c, ih2, iw2] += inp[n, c, oh, ow, kh, kw]
ow += 1
oh += 1
out = F.sliding_window_transpose(
tensor(inp),
(H, W),
(wh, ww),
padding=(ph, pw),
stride=(sh, sw),
dilation=(dh, dw),
)
np.testing.assert_equal(gt_out, out.numpy())
def test_pad():
src = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]], dtype=np.float32)
dst = np.pad(src, ((2, 2), (2, 2)), "constant")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "constant", constant_values=3)
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "CONSTANT", constant_value=3)
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "edge")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "EDGE")
np.testing.assert_allclose(res, dst, atol=1e-5)
dst = np.pad(src, ((2, 2), (2, 2)), "reflect")
res = F.nn.pad(tensor(src), ((2, 2), (2, 2)), "REFLECT")
np.testing.assert_allclose(res, dst, atol=1e-5)
def pixel_shuffle(data, r):
high_dim = data.shape[:-3]
data = data.reshape(-1, data.shape[-3], data.shape[-2], data.shape[-1])
inn, ic, ih, iw = data.shape
res = np.zeros((inn, int(ic / (r * r)), ih * r, iw * r))
for n in range(inn):
for c in range(ic):
for h in range(ih):
for w in range(iw):
res[
n,
int(c / r / r),
h * r + int((c % (r * r)) / r),
w * r + c % r,
] = data[n, c, h, w]
if len(high_dim) > 0:
res = res.reshape((*high_dim, int(ic / r / r), ih * r, iw * r))
else:
res = res[0]
return res
def test_pixel_shuffle():
# ndim = 3
inp = np.arange(16 * 3 * 3).reshape(16, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=4)
golden = pixel_shuffle(inp, 4)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 4
inp = np.arange(3 * 18 * 3 * 3).reshape(3, 18, 3, 3)
out = F.pixel_shuffle(tensor(inp), upscale_factor=3)
golden = pixel_shuffle(inp, 3)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 5
inp = np.arange(5 * 3 * 20 * 3 * 4).reshape(5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 6
inp = np.arange(6 * 5 * 3 * 25 * 3 * 4).reshape(6, 5, 3, 25, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=5)
golden = pixel_shuffle(inp, 5)
np.testing.assert_equal(out.numpy(), golden)
# ndim = 7
inp = np.arange(2 * 3 * 5 * 3 * 20 * 3 * 4).reshape(2, 3, 5, 3, 20, 3, 4)
out = F.pixel_shuffle(tensor(inp), upscale_factor=2)
golden = pixel_shuffle(inp, 2)
np.testing.assert_equal(out.numpy(), golden)
@pytest.mark.parametrize("is_symbolic", [False, True])
def test_pixel_shuffle_symbolic(is_symbolic):
def fn(inp, upscale_factor):
return F.pixel_shuffle(inp, upscale_factor=upscale_factor)
if is_symbolic is not None:
fn = | jit.trace(symbolic=is_symbolic) | megengine.jit.trace |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = | GradManager() | megengine.autodiff.GradManager |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = | GradManager() | megengine.autodiff.GradManager |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = tensor(np_x).astype(np.float32).reshape(1, 1, 32, 1)
out = F.vision.interpolate(x, (1, 1), mode="bilinear")
np.testing.assert_equal(out.item(), np_x.mean())
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective(dt):
inp_shape = (1, 1, 4, 4)
x = tensor(np.arange(16, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
outp = F.vision.warp_perspective(x, M, (2, 2))
np.testing.assert_equal(outp.numpy(), np.array([[[[5, 6], [9, 10]]]], dtype=dt))
@pytest.mark.parametrize("dt", [np.float32, np.int8, np.uint8, np.float16])
def test_warp_perspective_mat_idx(dt):
inp_shape = (2, 1, 4, 4)
x = tensor(np.arange(32, dtype=dt).reshape(inp_shape))
M_shape = (1, 3, 3)
# M defines a translation: dst(1, 1, h, w) = rst(1, 1, h+1, w+1)
M = tensor(
np.array(
[[1.0, 0.0, 1.0], [0.0, 1.0, 1.0], [0.0, 0.0, 1.0]], dtype=np.float32
).reshape(M_shape)
)
M = F.concat([M,] * 4, 0)
outp = F.vision.warp_perspective(x, M, (2, 2), mat_idx=[0, 1, 1, 0])
np.testing.assert_equal(
outp.numpy(),
np.array(
[
[[[5, 6], [9, 10]]],
[[[21, 22], [25, 26]]],
[[[21, 22], [25, 26]]],
[[[5, 6], [9, 10]]],
],
dtype=dt,
),
)
def test_warp_affine():
inp_shape = (1, 3, 3, 3)
x = tensor(np.arange(27, dtype=np.float32).reshape(inp_shape))
weightv = [[[1.26666667, 0.6, -83.33333333], [-0.33333333, 1, 66.66666667]]]
outp = F.vision.warp_affine(x, tensor(weightv), (2, 2), border_mode="wrap")
res = np.array(
[
[
[[7.875, 8.875, 9.875], [8.90625, 9.90625, 10.90625]],
[[18.75, 19.75, 20.75], [14.90625, 15.90625, 16.90625]],
]
],
dtype=np.float32,
)
if not is_cuda_available():
np.testing.assert_almost_equal(outp.numpy(), res, 5)
def test_remap():
inp_shape = (1, 1, 4, 4)
inp = tensor(np.arange(16, dtype=np.float32).reshape(inp_shape))
map_xy_shape = (1, 2, 2, 2)
map_xy = tensor(
np.array(
[[[1.0, 0.0], [0.0, 1.0]], [[0.0, 1.0], [0.0, 1.0]]], dtype=np.float32
).reshape(map_xy_shape)
)
outp = F.vision.remap(inp, map_xy)
np.testing.assert_equal(
outp.numpy(), np.array([[[[1.0, 4.0], [4.0, 4.0]]]], dtype=np.float32)
)
def test_binary_cross_entropy():
data1_shape = (2, 2)
label1_shape = (2, 2)
data2_shape = (2, 3)
label2_shape = (2, 3)
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def compare_fn(x, y):
np.testing.assert_allclose(x.numpy(), y, atol=5e-4)
np.random.seed(123)
data1 = np.random.uniform(size=data1_shape).astype(np.float32)
label1 = np.random.uniform(size=label1_shape).astype(np.float32)
expect1 = np.array([0.6361], dtype=np.float32)
np.random.seed(123)
data2 = np.random.uniform(size=data2_shape).astype(np.float32)
label2 = np.random.uniform(size=label2_shape).astype(np.float32)
expect2 = np.array([0.6750], dtype=np.float32)
cases = [
{"input": [data1, label1], "output": expect1,},
{"input": [data2, label2], "output": expect2,},
]
opr_test(cases, F.nn.binary_cross_entropy, compare_fn=compare_fn)
cases = [
{"input": [sigmoid(data1), label1], "output": expect1,},
{"input": [sigmoid(data2), label2], "output": expect2,},
]
opr_test(
cases,
partial(F.nn.binary_cross_entropy, with_logits=False),
compare_fn=compare_fn,
)
def test_hinge_loss():
np.random.seed(123)
# case with L1 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = np.clip(0, np.inf, 1 - data * label).sum(axis=1).mean()
cases.append({"input": [data, label], "output": expect})
opr_test(cases, F.nn.hinge_loss)
# cases with L2 norm
cases = []
for shape in [(2, 2), (2, 3)]:
data = np.random.uniform(size=shape).astype(np.float32)
label = 2 * np.random.randint(0, 1, size=shape).astype(np.float32) - 1
expect = ((np.clip(0, np.inf, 1 - data * label) ** 2).sum(axis=1)).mean()
cases.append({"input": [data, label], "output": expect})
def hinge_loss_with_l2_norm(pred, label):
return F.nn.hinge_loss(pred, label, "L2")
opr_test(cases, hinge_loss_with_l2_norm)
@pytest.mark.parametrize("is_symbolic", [None, False, True])
def test_nms(is_symbolic):
def fn(inp, scores):
return F.vision.nms(
inp,
scores=scores,
iou_thresh=0.5,
max_output=None if is_symbolic is None else 4,
)
if is_symbolic is not None:
fn = jit.trace(symbolic=is_symbolic)(fn)
x = np.array(
[
[0, 0, 100, 100],
[10, 10, 100, 100],
[50, 50, 100, 100],
[100, 100, 150, 150],
],
dtype=np.float32,
)
inp = tensor(x)
scores = tensor([0.5, 0.8, 0.9, 0.6], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([2, 1, 3], dtype=np.int32))
x = np.array([], dtype=np.float32,).reshape(0, 4)
inp = tensor(x)
scores = tensor([], dtype=np.float32)
for _ in range(3):
result = fn(inp, scores=scores)
np.testing.assert_equal(result.numpy(), np.array([], dtype=np.int32))
@pytest.mark.skipif(
get_device_count("gpu") > 0, reason="cuda does not support nchw int8"
)
def test_conv_bias():
inp_scale = 1.5
w_scale = 2.5
outp_scale = 1.5
inp_dtype = dtype.qint8(inp_scale)
w_dtype = dtype.qint8(w_scale)
b_dtype = dtype.qint32(inp_scale * w_scale)
out_dtype = dtype.qint8(outp_scale)
def run(
N,
IC,
OC,
IH,
IW,
KH,
KW,
PH,
PW,
SH,
SW,
has_bias=True,
nonlinear_mode="identity",
):
inp_v = np.random.normal(size=(N, IC, IH, IW))
w_v = np.random.normal(size=(OC, IC, KH, KW))
b_v = np.random.normal(size=(1, OC, 1, 1))
inp_scale = dtype.get_scale(inp_dtype)
w_scale = dtype.get_scale(w_dtype)
b_scale = dtype.get_scale(b_dtype)
inpv = dtype.convert_to_qint8(inp_v * inp_scale, inp_dtype)
wv = dtype.convert_to_qint8(w_v * w_scale, w_dtype)
bv = dtype.convert_to_qint32(b_v * b_scale, b_dtype)
inp_int8 = tensor(inpv, dtype=inp_dtype)
w_int8 = Parameter(wv, dtype=w_dtype)
b_int32 = Parameter(bv, dtype=b_dtype)
inp_fp32 = inp_int8.astype("float32")
w_fp32 = w_int8.astype("float32")
b_fp32 = b_int32.astype("float32")
def convert_to_nchw4(var):
var = F.reshape(
var, (var.shape[0], var.shape[1] // 4, 4, var.shape[2], var.shape[3])
)
var = F.transpose(var, (0, 1, 3, 4, 2))
return var
def run_conv2d(inp, w, b):
O = F.conv2d(
inp, w, b if has_bias else None, stride=(SH, SW), padding=(PH, PW),
)
if nonlinear_mode == "relu":
return | F.relu(O) | megengine.functional.relu |
# -*- coding: utf-8 -*-
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import itertools
import platform
from functools import partial
import numpy as np
import pytest
from utils import opr_test
import megengine.amp as amp
import megengine.config as config
import megengine.core.ops.builtin as builtin
import megengine.core.tensor.dtype as dtype
import megengine.functional as F
import megengine.jit as jit
from megengine import Parameter, Tensor, is_cuda_available, tensor
from megengine.core._trace_option import use_symbolic_shape
from megengine.core.autodiff.grad import Grad
from megengine.core.tensor.utils import make_shape_tuple
from megengine.device import get_device_count
from megengine.module import LayerNorm
def test_where():
maskv0 = np.array([[1, 0], [0, 1]], dtype=np.bool_)
xv0 = np.array([[1, np.inf], [np.nan, 4]], dtype=np.float32)
yv0 = np.array([[5, 6], [7, 8]], dtype=np.float32)
maskv1 = np.array([[1, 0, 1], [1, 0, 0], [1, 1, 0]], dtype=np.bool_)
xv1 = np.array([[1, np.inf, 2], [0, np.nan, 4], [1, 5, 7]], dtype=np.float32)
yv1 = np.array([[5, 6, 9], [2, 7, 8], [2, 1, 9]], dtype=np.float32)
cases = [
{"input": [maskv0, xv0, yv0]},
{"input": [maskv1, xv1, yv1]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
maskv2 = np.array([1, 1, 1], dtype=np.bool_)
xv2 = np.array([1, 3, 2], dtype=np.float32)
yv2 = np.array([5, 6, 9], dtype=np.float32)
maskv3 = np.array([0, 0, 0], dtype=np.bool_)
xv3 = np.array([1, 3, 2], dtype=np.float32)
yv3 = np.array([5, 6, 9], dtype=np.float32)
cases = [
{"input": [maskv2, xv2, yv2]},
{"input": [maskv3, xv3, yv3]},
]
opr_test(cases, F.where, ref_fn=np.where, test_trace=False)
def test_dropout():
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.ops import set_global_rng_seed
def test_dropout_with_shape(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out = F.nn.dropout(data, rate, training=True)
gm.backward(out, tensor(np.ones(shape, dtype=np.float32)))
assert not out.numpy().all()
np.testing.assert_allclose(out.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_multiple_dropout(shape, rate):
data = tensor(np.ones(shape, dtype=np.float32))
gm = GradManager().attach([data])
with gm:
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(out1, rate, training=True)
out3 = F.nn.dropout(out2, rate, training=True)
gm.backward(out3, tensor(np.ones(shape, dtype=np.float32)))
np.testing.assert_allclose(out3.numpy(), data.grad.numpy(), 1e-7, 1e-7)
def test_dropout_seed(shape, rate):
data = tensor(np.random.randn(*shape), dtype="float32")
set_global_rng_seed(111)
out1 = F.nn.dropout(data, rate, training=True)
out2 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out2.numpy()).all()
set_global_rng_seed(111)
out3 = F.nn.dropout(data, rate, training=True)
assert (out1.numpy() == out3.numpy()).all()
set_global_rng_seed(222)
out4 = F.nn.dropout(data, rate, training=True)
assert not (out1.numpy() == out4.numpy()).all()
test_dropout_with_shape([13, 17, 63, 21], 0.4)
test_dropout_with_shape([16, 32, 64], 0.3)
test_multiple_dropout([1024], 0.2)
test_dropout_seed([16, 32], 0.2)
def test_matinv():
shape1 = (5, 5)
shape2 = (3, 9, 9)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
# make matrix diagonally dominant for numerical stability
data1 += (np.eye(shape1[0]) * shape1[0]).astype("float32")
data2 += np.broadcast_to((np.eye(shape2[1]) * shape2[1]).astype("float32"), shape2)
cases = [
{"input": data1},
{"input": data2},
]
opr_test(
cases,
F.matinv,
compare_fn=lambda x, y: np.testing.assert_allclose(x.numpy(), y, rtol=1e-4),
ref_fn=np.linalg.inv,
)
def test_matmul():
shape1 = 3
shape2 = 3
shape3 = (3, 5)
shape4 = (5, 6)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
batch_size = 10
shape1 = (2,)
shape2 = (batch_size, 2, 3)
shape3 = (batch_size, 3, 4)
shape4 = (batch_size, 10, 4, 2)
shape5 = (batch_size, 10, 2, 4)
data1 = np.random.random(shape1).astype("float32")
data2 = np.random.random(shape2).astype("float32")
data3 = np.random.random(shape3).astype("float32")
data4 = np.random.random(shape4).astype("float32")
data5 = np.random.random(shape5).astype("float32")
cases = [
{"input": [data1, data2]},
{"input": [data2, data3]},
{"input": [data3, data4]},
{"input": [data4, data5]},
]
opr_test(cases, F.matmul, ref_fn=np.matmul)
opr_test(
[{"input": [data1, data4]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
transpose_b=True,
)
opr_test(
[{"input": [data3, data2]}],
F.matmul,
ref_fn=lambda x, y: np.matmul(x.transpose(0, 2, 1), y.transpose(0, 2, 1)),
transpose_a=True,
transpose_b=True,
)
@pytest.mark.parametrize(
"shape_a, shape_b", [((0,), (0,)), ((10, 0), (0, 10)), ((3, 10, 0), (3, 0, 10)),],
)
@pytest.mark.parametrize("is_symbolic", [None, True, False])
def test_matmul_empty_tensor(shape_a, shape_b, is_symbolic):
def func(a, b):
return F.matmul(a, b)
if is_symbolic is not None:
func = jit.trace(symbolic=is_symbolic)(func)
a = tensor(np.random.randn(*shape_a))
b = tensor(np.random.randn(*shape_b))
for _ in range(3):
out = func(a, b)
assert np.all(out.numpy() == 0)
if is_symbolic is None:
break
def test_interpolate():
def linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
out = F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
out2 = F.vision.interpolate(inp, 4, mode="linear")
np.testing.assert_allclose(
out.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
np.testing.assert_allclose(
out2.numpy(), np.array([[[1.0, 1.25, 1.75, 2.0]]], dtype=np.float32)
)
def many_batch_interpolate():
inp = tensor(np.arange(1, 9, dtype=np.float32).reshape(2, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4])
out2 = F.vision.interpolate(inp, scale_factor=2.0)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def assign_corner_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
out = F.vision.interpolate(inp, [4, 4], align_corners=True)
out2 = F.vision.interpolate(inp, scale_factor=2.0, align_corners=True)
np.testing.assert_allclose(out.numpy(), out2.numpy())
def error_shape_linear_interpolate():
inp = tensor(np.arange(1, 5, dtype=np.float32).reshape(1, 1, 2, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=2.0, mode="linear")
def inappropriate_scale_linear_interpolate():
inp = tensor(np.arange(1, 3, dtype=np.float32).reshape(1, 1, 2))
with pytest.raises(ValueError):
F.vision.interpolate(inp, scale_factor=[2.0, 3.0], mode="linear")
linear_interpolate()
many_batch_interpolate()
assign_corner_interpolate()
error_shape_linear_interpolate()
inappropriate_scale_linear_interpolate()
def _save_to(self, name="grad"):
def callback(grad):
setattr(self, name, grad)
return callback
def _gen_roi_inp():
inp_feat = np.random.randn(2, 32, 256, 256)
rois = np.zeros((4, 5))
rois[:, 0] = [0, 0, 1, 1]
rois[:, 1:3] = np.random.rand(4, 2) * 100
rois[:, 3:] = np.random.rand(4, 2) * 100 + 150
inp_feat = tensor(inp_feat)
rois = tensor(rois)
return inp_feat, rois
def test_roi_align():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_align(
inp_feat,
rois,
output_shape=output_shape,
mode="average",
spatial_scale=1.0 / 4,
sample_points=2,
aligned=True,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def _gen_correlation(random=True, constant=1, image_shape=(2, 1, 160, 160)):
if random:
inp_feat1 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
inp_feat2 = np.random.randn(
image_shape[0], image_shape[1], image_shape[2], image_shape[3]
)
else:
inp_feat1 = np.ones(image_shape) * constant
inp_feat2 = np.ones(image_shape) * constant
return tensor(inp_feat1), tensor(inp_feat2)
def test_correlation():
##test case 0 check the grad shape
data1, data2 = _gen_correlation()
grad = Grad().wrt(data1, callback=_save_to(data1))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=5,
max_displacement=4,
stride1=2,
stride2=2,
pad_size=2,
is_multiply=True,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(data1.grad.shape) == make_shape_tuple(data1.shape)
##test case 1 from https://github.com/NVIDIA/flownet2-pytorch/issues/194
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=True,
)
assert abs(out_feat.sum() - 1) < 1e-9
##test case 2 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 3 check same image subduction
data1, data2 = _gen_correlation(random=False, image_shape=(1, 1, 3, 3))
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=0,
stride1=1,
stride2=1,
pad_size=0,
is_multiply=False,
)
assert out_feat.sum() < 1e-9
##test case 4 check correlation
data1, _ = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=2.0
)
_, data2 = _gen_correlation(
random=False, image_shape=(1, 1, 220, 220), constant=1.0
)
out_feat = F.vision.correlation(
data1,
data2,
kernel_size=3,
max_displacement=2,
stride1=1,
stride2=2,
pad_size=0,
is_multiply=False,
)
assert abs(out_feat.mean() - 1) < 1e-9
def test_roi_pooling():
inp_feat, rois = _gen_roi_inp()
grad = Grad().wrt(inp_feat, callback=_save_to(inp_feat))
output_shape = (7, 7)
out_feat = F.vision.roi_pooling(
inp_feat, rois, output_shape=output_shape, mode="max", scale=1.0 / 4,
)
assert make_shape_tuple(out_feat.shape) == (
rois.shape[0],
inp_feat.shape[1],
*output_shape,
)
grad(out_feat, tensor(F.ones_like(out_feat)))
assert make_shape_tuple(inp_feat.grad.shape) == make_shape_tuple(inp_feat.shape)
def test_adaptive_avg_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_avg_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[2.5, 4.5], [10.5, 12.5]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
[0.25, 0.25, 0.25, 0.25],
]
]
],
dtype=np.float32,
),
)
def test_adaptive_max_pool2d():
inp = tensor(np.arange(0, 16, dtype=np.float32).reshape(1, 1, 4, 4))
oshp = (2, 2)
grad = Grad().wrt(inp, callback=_save_to(inp))
outp = F.adaptive_max_pool2d(inp, oshp,)
assert make_shape_tuple(outp.shape) == (inp.shape[0], inp.shape[1], *oshp,)
np.testing.assert_equal(
outp.numpy(), np.array([[[[5, 7], [13, 15]]]], dtype=np.float32)
)
grad(outp, tensor(F.ones_like(outp)))
assert make_shape_tuple(inp.grad.shape) == make_shape_tuple(inp.shape)
np.testing.assert_equal(
inp.grad.numpy(),
np.array(
[
[
[
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
[0.0, 0.0, 0.0, 0.0],
[0.0, 1.0, 0.0, 1.0],
]
]
],
dtype=np.float32,
),
)
def test_one_hot():
def onehot_low_dimension():
inp = tensor(np.arange(1, 4, dtype=np.int32))
out = F.one_hot(inp, num_classes=4)
np.testing.assert_allclose(
out.numpy(), np.eye(4, dtype=np.int32)[np.arange(1, 4, dtype=np.int32)]
)
def onehot_high_dimension():
arr = np.array(
[[3, 2, 4, 4, 2, 4, 0, 4, 4, 1], [4, 1, 1, 3, 2, 2, 4, 2, 4, 3]],
dtype=np.int32,
)
inp = tensor(arr)
out = F.one_hot(inp, 10)
np.testing.assert_allclose(out.numpy(), np.eye(10, dtype=np.int32)[arr])
onehot_low_dimension()
onehot_high_dimension()
def test_interpolate_fastpath():
# check shape
test_cases = [
[(1, 1, 10, 10), (5, 5)],
[(1, 3, 10, 10), (20, 20)],
[(10, 1, 10, 10), (1, 1)],
# [(10, 10, 1, 1), (10, 10)], # FIXME, it causes random CI failure
]
for inp_shape, target_shape in test_cases:
x = tensor(np.random.randn(*inp_shape), dtype=np.float32)
out = F.vision.interpolate(x, target_shape, mode="bilinear")
assert out.shape[0] == x.shape[0] and out.shape[1] == x.shape[1]
assert out.shape[2] == target_shape[0] and out.shape[3] == target_shape[1]
# check value
x = tensor(np.ones((3, 3, 10, 10)), dtype=np.float32)
out = F.vision.interpolate(x, (15, 5), mode="bilinear")
np.testing.assert_equal(out.numpy(), np.ones((3, 3, 15, 5)).astype(np.float32))
np_x = np.arange(32)
x = | tensor(np_x) | megengine.tensor |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
from functools import partial
import numpy as np
import tabulate
import megengine as mge
import megengine._internal as mgb
import megengine.module as m
import megengine.module.qat as qatm
import megengine.module.quantized as qm
try:
mge.logger.MegEngineLogFormatter.max_lines = float("inf")
except AttributeError as e:
raise ValueError("set logger max lines failed")
logger = | mge.get_logger(__name__) | megengine.get_logger |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
from functools import partial
import numpy as np
import tabulate
import megengine as mge
import megengine._internal as mgb
import megengine.module as m
import megengine.module.qat as qatm
import megengine.module.quantized as qm
try:
mge.logger.MegEngineLogFormatter.max_lines = float("inf")
except AttributeError as e:
raise ValueError("set logger max lines failed")
logger = mge.get_logger(__name__)
CALC_FLOPS = {}
def _register_modules(*modules):
def callback(impl):
for module in modules:
CALC_FLOPS[module] = impl
return impl
return callback
@_register_modules(
m.Conv2d,
m.ConvTranspose2d,
m.LocalConv2d,
qm.Conv2d,
qm.ConvRelu2d,
qm.ConvBn2d,
qm.ConvBnRelu2d,
qatm.Conv2d,
qatm.ConvRelu2d,
qatm.ConvBn2d,
qatm.ConvBnRelu2d,
)
def count_convNd(module, input, output):
bias = 1 if module.bias is not None else 0
group = module.groups
ic = input[0].shape[1]
oc = output[0].shape[1]
goc = oc // group
gic = ic // group
N = output[0].shape[0]
HW = np.prod(output[0].shape[2:])
# N x Cout x H x W x (Cin x Kw x Kh + bias)
return N * HW * goc * (gic * np.prod(module.kernel_size) + bias)
@_register_modules(m.ConvTranspose2d)
def count_deconvNd(module, input, output):
return np.prod(input[0].shape) * output[0].shape[1] * np.prod(module.kernel_size)
@_register_modules(m.Linear, qatm.Linear, qm.Linear)
def count_linear(module, input, output):
return np.prod(output[0].shape) * module.in_features
# does not need import qat and quantized module since they inherit from float module.
hook_modules = (
m.Conv2d,
m.ConvTranspose2d,
m.LocalConv2d,
m.BatchNorm2d,
m.Linear,
)
def net_stats(model, input_size, bar_length_max=20, log_params=True, log_flops=True):
def dict2table(list_of_dict, header):
table_data = [header]
for d in list_of_dict:
row = []
for h in header:
v = ""
if h in d:
v = d[h]
row.append(v)
table_data.append(row)
return table_data
def sizeof_fmt(num, suffix="B"):
for unit in ["", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"]:
if abs(num) < 1024.0:
return "{:3.3f} {}{}".format(num, unit, suffix)
num /= 1024.0
sign_str = "-" if num < 0 else ""
return "{}{:.1f} {}{}".format(sign_str, num, "Yi", suffix)
def get_byteswidth(tensor):
dtype = tensor.dtype
if | mgb.dtype.is_quantize(dtype) | megengine._internal.dtype.is_quantize |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
from functools import partial
import numpy as np
import tabulate
import megengine as mge
import megengine._internal as mgb
import megengine.module as m
import megengine.module.qat as qatm
import megengine.module.quantized as qm
try:
mge.logger.MegEngineLogFormatter.max_lines = float("inf")
except AttributeError as e:
raise ValueError("set logger max lines failed")
logger = mge.get_logger(__name__)
CALC_FLOPS = {}
def _register_modules(*modules):
def callback(impl):
for module in modules:
CALC_FLOPS[module] = impl
return impl
return callback
@_register_modules(
m.Conv2d,
m.ConvTranspose2d,
m.LocalConv2d,
qm.Conv2d,
qm.ConvRelu2d,
qm.ConvBn2d,
qm.ConvBnRelu2d,
qatm.Conv2d,
qatm.ConvRelu2d,
qatm.ConvBn2d,
qatm.ConvBnRelu2d,
)
def count_convNd(module, input, output):
bias = 1 if module.bias is not None else 0
group = module.groups
ic = input[0].shape[1]
oc = output[0].shape[1]
goc = oc // group
gic = ic // group
N = output[0].shape[0]
HW = np.prod(output[0].shape[2:])
# N x Cout x H x W x (Cin x Kw x Kh + bias)
return N * HW * goc * (gic * np.prod(module.kernel_size) + bias)
@_register_modules(m.ConvTranspose2d)
def count_deconvNd(module, input, output):
return np.prod(input[0].shape) * output[0].shape[1] * np.prod(module.kernel_size)
@_register_modules(m.Linear, qatm.Linear, qm.Linear)
def count_linear(module, input, output):
return np.prod(output[0].shape) * module.in_features
# does not need import qat and quantized module since they inherit from float module.
hook_modules = (
m.Conv2d,
m.ConvTranspose2d,
m.LocalConv2d,
m.BatchNorm2d,
m.Linear,
)
def net_stats(model, input_size, bar_length_max=20, log_params=True, log_flops=True):
def dict2table(list_of_dict, header):
table_data = [header]
for d in list_of_dict:
row = []
for h in header:
v = ""
if h in d:
v = d[h]
row.append(v)
table_data.append(row)
return table_data
def sizeof_fmt(num, suffix="B"):
for unit in ["", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"]:
if abs(num) < 1024.0:
return "{:3.3f} {}{}".format(num, unit, suffix)
num /= 1024.0
sign_str = "-" if num < 0 else ""
return "{}{:.1f} {}{}".format(sign_str, num, "Yi", suffix)
def get_byteswidth(tensor):
dtype = tensor.dtype
if mgb.dtype.is_quantize(dtype):
return 1
elif mgb.dtype.is_bfloat16(dtype):
return 2
else:
return 4
def print_flops_stats(flops):
flops_list = [i["flops_num"] for i in flops]
max_flops_num = max(flops_list + [0])
# calc total flops and set flops_cum
total_flops_num = 0
for d in flops:
total_flops_num += int(d["flops_num"])
d["flops_cum"] = sizeof_fmt(total_flops_num, suffix="OPs")
for i in flops:
f = i["flops_num"]
i["flops"] = sizeof_fmt(f, suffix="OPs")
r = i["ratio"] = f / total_flops_num
i["percentage"] = "{:.2f}%".format(r * 100)
bar_length = int(f / max_flops_num * bar_length_max)
i["bar"] = "#" * bar_length
header = [
"name",
"class_name",
"input_shapes",
"output_shapes",
"flops",
"flops_cum",
"percentage",
"bar",
]
total_flops_str = sizeof_fmt(total_flops_num, suffix="OPs")
total_var_size = sum(sum(s[1] for s in i["output_shapes"]) for i in flops)
flops.append(
dict(name="total", flops=total_flops_str, output_shapes=total_var_size)
)
logger.info(
"flops stats: \n" + tabulate.tabulate(dict2table(flops, header=header))
)
return total_flops_num
def print_params_stats(params):
total_param_dims, total_param_size = 0, 0
for d in params:
total_param_dims += int(d["param_dim"])
total_param_size += int(d["size"])
d["size"] = sizeof_fmt(d["size"])
d["size_cum"] = sizeof_fmt(total_param_size)
for d in params:
ratio = d["param_dim"] / total_param_dims
d["ratio"] = ratio
d["percentage"] = "{:.2f}%".format(ratio * 100)
# construct bar
max_ratio = max([d["ratio"] for d in params])
for d in params:
bar_length = int(d["ratio"] / max_ratio * bar_length_max)
d["size_bar"] = "#" * bar_length
param_size = sizeof_fmt(total_param_size)
params.append(dict(name="total", param_dim=total_param_dims, size=param_size,))
header = [
"name",
"shape",
"mean",
"std",
"param_dim",
"bits",
"size",
"size_cum",
"percentage",
"size_bar",
]
logger.info(
"param stats: \n" + tabulate.tabulate(dict2table(params, header=header))
)
return total_param_size
def net_stats_hook(module, input, output, name=""):
class_name = str(module.__class__).split(".")[-1].split("'")[0]
flops_fun = CALC_FLOPS.get(type(module))
if callable(flops_fun):
flops_num = flops_fun(module, input, output)
if not isinstance(output, (list, tuple)):
output = [output]
flops.append(
dict(
name=name,
class_name=class_name,
input_shapes=[i.shape for i in input],
output_shapes=[o.shape for o in output],
flops_num=flops_num,
flops_cum=0,
)
)
if hasattr(module, "weight") and module.weight is not None:
w = module.weight
value = w.numpy()
param_dim = np.prod(w.shape)
param_bytes = get_byteswidth(w)
params.append(
dict(
name=name + "-w",
shape=w.shape,
param_dim=param_dim,
bits=param_bytes * 8,
size=param_dim * param_bytes,
size_cum=0,
mean="{:.2g}".format(value.mean()),
std="{:.2g}".format(value.std()),
)
)
if hasattr(module, "bias") and module.bias is not None:
b = module.bias
value = b.numpy()
param_dim = np.prod(b.shape)
param_bytes = get_byteswidth(b)
params.append(
dict(
name=name + "-b",
shape=b.shape,
param_dim=param_dim,
bits=param_bytes * 8,
size=param_dim * param_bytes,
size_cum=0,
mean="{:.2g}".format(value.mean()),
std="{:.2g}".format(value.std()),
)
)
# multiple inputs to the network
if not isinstance(input_size[0], tuple):
input_size = [input_size]
params = []
flops = []
hooks = []
for (name, module) in model.named_modules():
if isinstance(module, hook_modules):
hooks.append(
module.register_forward_hook(partial(net_stats_hook, name=name))
)
inputs = [ | mge.zeros(in_size, dtype=np.float32) | megengine.zeros |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
from functools import partial
import numpy as np
import tabulate
import megengine as mge
import megengine._internal as mgb
import megengine.module as m
import megengine.module.qat as qatm
import megengine.module.quantized as qm
try:
mge.logger.MegEngineLogFormatter.max_lines = float("inf")
except AttributeError as e:
raise ValueError("set logger max lines failed")
logger = mge.get_logger(__name__)
CALC_FLOPS = {}
def _register_modules(*modules):
def callback(impl):
for module in modules:
CALC_FLOPS[module] = impl
return impl
return callback
@_register_modules(
m.Conv2d,
m.ConvTranspose2d,
m.LocalConv2d,
qm.Conv2d,
qm.ConvRelu2d,
qm.ConvBn2d,
qm.ConvBnRelu2d,
qatm.Conv2d,
qatm.ConvRelu2d,
qatm.ConvBn2d,
qatm.ConvBnRelu2d,
)
def count_convNd(module, input, output):
bias = 1 if module.bias is not None else 0
group = module.groups
ic = input[0].shape[1]
oc = output[0].shape[1]
goc = oc // group
gic = ic // group
N = output[0].shape[0]
HW = np.prod(output[0].shape[2:])
# N x Cout x H x W x (Cin x Kw x Kh + bias)
return N * HW * goc * (gic * np.prod(module.kernel_size) + bias)
@_register_modules(m.ConvTranspose2d)
def count_deconvNd(module, input, output):
return np.prod(input[0].shape) * output[0].shape[1] * np.prod(module.kernel_size)
@_register_modules(m.Linear, qatm.Linear, qm.Linear)
def count_linear(module, input, output):
return np.prod(output[0].shape) * module.in_features
# does not need import qat and quantized module since they inherit from float module.
hook_modules = (
m.Conv2d,
m.ConvTranspose2d,
m.LocalConv2d,
m.BatchNorm2d,
m.Linear,
)
def net_stats(model, input_size, bar_length_max=20, log_params=True, log_flops=True):
def dict2table(list_of_dict, header):
table_data = [header]
for d in list_of_dict:
row = []
for h in header:
v = ""
if h in d:
v = d[h]
row.append(v)
table_data.append(row)
return table_data
def sizeof_fmt(num, suffix="B"):
for unit in ["", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"]:
if abs(num) < 1024.0:
return "{:3.3f} {}{}".format(num, unit, suffix)
num /= 1024.0
sign_str = "-" if num < 0 else ""
return "{}{:.1f} {}{}".format(sign_str, num, "Yi", suffix)
def get_byteswidth(tensor):
dtype = tensor.dtype
if mgb.dtype.is_quantize(dtype):
return 1
elif | mgb.dtype.is_bfloat16(dtype) | megengine._internal.dtype.is_bfloat16 |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = | mge.tensor(-1.0) | megengine.tensor |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = | F.matmul(x, w) | megengine.functional.matmul |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = | mge.Parameter([1.0]) | megengine.Parameter |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = | GradManager() | megengine.autodiff.GradManager |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = | mge.Parameter(2.0) | megengine.Parameter |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = | GradManager() | megengine.autodiff.GradManager |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = | F.matmul(x, w) | megengine.functional.matmul |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = GradManager()
gm.attach(w)
def cb(x, g):
assert x is ref()
cb.called = True
for i in range(3):
with gm:
cb.called = False
x = mge.Tensor(i, dtype="float32")
gm.attach(x, callbacks=cb)
ref = weakref.ref(x)
y = x * w
gm.backward(y)
assert cb.called
del x
assert ref() is None
# NOTE: does not guarantee timely release when recording
# for i in range(3):
# with gm:
# x = mge.Tensor(i, dtype='float32')
# gm.attach(x)
# ref = weakref.ref(x)
# y = x * w
# del x
# assert ref() is None
# gm.backward(y)
@pytest.mark.skipif(
platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
)
@pytest.mark.skipif(
platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
)
@pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
@pytest.mark.isolated_distributed
def test_remote_grad():
@dist.launcher
def worker():
rank = | dist.get_rank() | megengine.distributed.get_rank |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = GradManager()
gm.attach(w)
def cb(x, g):
assert x is ref()
cb.called = True
for i in range(3):
with gm:
cb.called = False
x = mge.Tensor(i, dtype="float32")
gm.attach(x, callbacks=cb)
ref = weakref.ref(x)
y = x * w
gm.backward(y)
assert cb.called
del x
assert ref() is None
# NOTE: does not guarantee timely release when recording
# for i in range(3):
# with gm:
# x = mge.Tensor(i, dtype='float32')
# gm.attach(x)
# ref = weakref.ref(x)
# y = x * w
# del x
# assert ref() is None
# gm.backward(y)
@pytest.mark.skipif(
platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
)
@pytest.mark.skipif(
platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
)
@pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
@pytest.mark.isolated_distributed
def test_remote_grad():
@dist.launcher
def worker():
rank = dist.get_rank()
size = | dist.get_world_size() | megengine.distributed.get_world_size |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = GradManager()
gm.attach(w)
def cb(x, g):
assert x is ref()
cb.called = True
for i in range(3):
with gm:
cb.called = False
x = mge.Tensor(i, dtype="float32")
gm.attach(x, callbacks=cb)
ref = weakref.ref(x)
y = x * w
gm.backward(y)
assert cb.called
del x
assert ref() is None
# NOTE: does not guarantee timely release when recording
# for i in range(3):
# with gm:
# x = mge.Tensor(i, dtype='float32')
# gm.attach(x)
# ref = weakref.ref(x)
# y = x * w
# del x
# assert ref() is None
# gm.backward(y)
@pytest.mark.skipif(
platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
)
@pytest.mark.skipif(
platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
)
@pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
@pytest.mark.isolated_distributed
def test_remote_grad():
@dist.launcher
def worker():
rank = dist.get_rank()
size = dist.get_world_size()
x = mge.tensor(np.random.randn(1, rank * 2 + 2), dtype=np.float32)
m = | M.Linear(rank * 2 + 2, rank * 2 + 4) | megengine.module.Linear |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = GradManager()
gm.attach(w)
def cb(x, g):
assert x is ref()
cb.called = True
for i in range(3):
with gm:
cb.called = False
x = mge.Tensor(i, dtype="float32")
gm.attach(x, callbacks=cb)
ref = weakref.ref(x)
y = x * w
gm.backward(y)
assert cb.called
del x
assert ref() is None
# NOTE: does not guarantee timely release when recording
# for i in range(3):
# with gm:
# x = mge.Tensor(i, dtype='float32')
# gm.attach(x)
# ref = weakref.ref(x)
# y = x * w
# del x
# assert ref() is None
# gm.backward(y)
@pytest.mark.skipif(
platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
)
@pytest.mark.skipif(
platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
)
@pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
@pytest.mark.isolated_distributed
def test_remote_grad():
@dist.launcher
def worker():
rank = dist.get_rank()
size = dist.get_world_size()
x = mge.tensor(np.random.randn(1, rank * 2 + 2), dtype=np.float32)
m = M.Linear(rank * 2 + 2, rank * 2 + 4)
gm = GradManager().attach(m.parameters())
opt = optim.SGD(m.parameters(), 1e-3, momentum=0.9)
@ | trace(symbolic=True) | megengine.jit.trace |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = GradManager()
gm.attach(w)
def cb(x, g):
assert x is ref()
cb.called = True
for i in range(3):
with gm:
cb.called = False
x = mge.Tensor(i, dtype="float32")
gm.attach(x, callbacks=cb)
ref = weakref.ref(x)
y = x * w
gm.backward(y)
assert cb.called
del x
assert ref() is None
# NOTE: does not guarantee timely release when recording
# for i in range(3):
# with gm:
# x = mge.Tensor(i, dtype='float32')
# gm.attach(x)
# ref = weakref.ref(x)
# y = x * w
# del x
# assert ref() is None
# gm.backward(y)
@pytest.mark.skipif(
platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
)
@pytest.mark.skipif(
platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
)
@pytest.mark.skipif( | get_device_count_by_fork("gpu") | megengine.distributed.helper.get_device_count_by_fork |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = | mge.tensor([1.0, 3.0, 5.0]) | megengine.tensor |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = | mge.tensor([2.0, 4.0, 6.0]) | megengine.tensor |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = | GradManager() | megengine.autodiff.GradManager |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = GradManager()
gm.attach(w)
def cb(x, g):
assert x is ref()
cb.called = True
for i in range(3):
with gm:
cb.called = False
x = | mge.Tensor(i, dtype="float32") | megengine.Tensor |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = GradManager()
gm.attach(w)
def cb(x, g):
assert x is ref()
cb.called = True
for i in range(3):
with gm:
cb.called = False
x = mge.Tensor(i, dtype="float32")
gm.attach(x, callbacks=cb)
ref = weakref.ref(x)
y = x * w
gm.backward(y)
assert cb.called
del x
assert ref() is None
# NOTE: does not guarantee timely release when recording
# for i in range(3):
# with gm:
# x = mge.Tensor(i, dtype='float32')
# gm.attach(x)
# ref = weakref.ref(x)
# y = x * w
# del x
# assert ref() is None
# gm.backward(y)
@pytest.mark.skipif(
platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
)
@pytest.mark.skipif(
platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
)
@pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
@pytest.mark.isolated_distributed
def test_remote_grad():
@dist.launcher
def worker():
rank = dist.get_rank()
size = dist.get_world_size()
x = mge.tensor(np.random.randn(1, rank * 2 + 2), dtype=np.float32)
m = M.Linear(rank * 2 + 2, rank * 2 + 4)
gm = | GradManager() | megengine.autodiff.GradManager |
# MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
#
# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
import platform
import weakref
import numpy as np
import pytest
import megengine as mge
import megengine.distributed as dist
import megengine.functional as F
import megengine.module as M
import megengine.optimizer as optim
from megengine.autodiff import GradManager
from megengine.core._imperative_rt.imperative import sync
from megengine.distributed.helper import get_device_count_by_fork
from megengine.jit import trace
def test_basic():
x = mge.tensor([1.0, 3.0, 5.0]).reshape(1, 3)
w = mge.tensor([2.0, 4.0, 6.0]).reshape(3, 1)
b = mge.tensor(-1.0)
gm = GradManager().attach([w, b])
gm.record()
p = F.matmul(x, w)
y = p + b
gm.backward(y)
gm.release() # is not necessary
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
w.grad = None
b.grad = None
with gm:
p = F.matmul(x, w)
y = p + b
gm.backward(y)
np.testing.assert_equal(w.grad.numpy(), [[1], [3], [5]])
np.testing.assert_equal(b.grad.numpy(), [1])
def test_attach_in_with_block():
a = mge.Parameter([1.0])
gm = GradManager()
with gm:
b = a * 3
gm.attach(b)
c = b + 1
gm.backward(c)
assert int(b.grad.numpy()) == 1
def test_attach_temporary():
w = mge.Parameter(2.0)
gm = GradManager()
gm.attach(w)
def cb(x, g):
assert x is ref()
cb.called = True
for i in range(3):
with gm:
cb.called = False
x = mge.Tensor(i, dtype="float32")
gm.attach(x, callbacks=cb)
ref = weakref.ref(x)
y = x * w
gm.backward(y)
assert cb.called
del x
assert ref() is None
# NOTE: does not guarantee timely release when recording
# for i in range(3):
# with gm:
# x = mge.Tensor(i, dtype='float32')
# gm.attach(x)
# ref = weakref.ref(x)
# y = x * w
# del x
# assert ref() is None
# gm.backward(y)
@pytest.mark.skipif(
platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
)
@pytest.mark.skipif(
platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
)
@pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
@pytest.mark.isolated_distributed
def test_remote_grad():
@dist.launcher
def worker():
rank = dist.get_rank()
size = dist.get_world_size()
x = mge.tensor(np.random.randn(1, rank * 2 + 2), dtype=np.float32)
m = M.Linear(rank * 2 + 2, rank * 2 + 4)
gm = GradManager().attach(m.parameters())
opt = optim.SGD(m.parameters(), 1e-3, momentum=0.9)
@trace(symbolic=True)
def train_func(x):
with gm:
if rank != 0:
x = dist.functional.remote_recv(
rank - 1, shape=(1, rank * 2 + 2), dtype=np.float32
)
y = m(x)
if rank != size - 1:
y = | dist.functional.remote_send(y, dest_rank=rank + 1) | megengine.distributed.functional.remote_send |