test / tools /generate-packb-test.py
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#!/usr/bin/env python
# Copyright 2023 Google LLC
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
import argparse
import codecs
import math
import os
import re
import sys
import yaml
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
from primes import next_prime
import xngen
import xnncommon
parser = argparse.ArgumentParser(description='PackB/ZeroB microkernel test generator')
parser.add_argument("-s", "--spec", metavar="FILE", required=True,
help="Specification (YAML) file")
parser.add_argument("-o", "--output", metavar="FILE", required=True,
help='Output (C++ source) file')
parser.set_defaults(defines=list())
def split_ukernel_name(name):
match = re.fullmatch(r"xnn_(x8|x16|x32)_(packb|zerob)_gemm_ukernel_(\d+)c(\d+)s(\d+)r__(.+)", name)
assert match is not None
channel_tile = int(match.group(3))
channel_subtile = int(match.group(4))
channel_round = int(match.group(5))
arch, isa, assembly = xnncommon.parse_target_name(target_name=match.group(4))
return channel_tile, channel_subtile, channel_round, arch, isa
PACKB_TEST_TEMPLATE = """\
TEST(${TEST_NAME}, n_eq_${CHANNEL_TILE}) {
$if ISA_CHECK:
${ISA_CHECK};
for (size_t k = 1; k < 4; k++) {
PackBMicrokernelTester()
.channels(${CHANNEL_TILE})
.kernel_tile(k)
.channel_tile(${CHANNEL_TILE})
.channel_subtile(${CHANNEL_SUBTILE})
.channel_round(${CHANNEL_ROUND})
.Test(${", ".join(TEST_ARGS)});
}
}
$if CHANNEL_TILE > 1:
TEST(${TEST_NAME}, n_div_${CHANNEL_TILE}) {
$if ISA_CHECK:
${ISA_CHECK};
for (size_t k = 1; k < 4; k++) {
PackBMicrokernelTester()
.channels(${CHANNEL_TILE*2})
.kernel_tile(k)
.channel_tile(${CHANNEL_TILE})
.channel_subtile(${CHANNEL_SUBTILE})
.channel_round(${CHANNEL_ROUND})
.Test(${", ".join(TEST_ARGS)});
}
}
TEST(${TEST_NAME}, n_lt_${CHANNEL_TILE}) {
$if ISA_CHECK:
${ISA_CHECK};
for (size_t k = 1; k < 4; k++) {
for (size_t n = 1; n < ${CHANNEL_TILE}; n++) {
PackBMicrokernelTester()
.channels(n)
.kernel_tile(k)
.channel_tile(${CHANNEL_TILE})
.channel_subtile(${CHANNEL_SUBTILE})
.channel_round(${CHANNEL_ROUND})
.Test(${", ".join(TEST_ARGS)});
}
}
}
TEST(${TEST_NAME}, n_gt_${CHANNEL_TILE}) {
$if ISA_CHECK:
${ISA_CHECK};
for (size_t k = 1; k < 4; k++) {
for (size_t n = ${CHANNEL_TILE+1}; n < ${10 if CHANNEL_TILE == 1 else CHANNEL_TILE*2}; n++) {
PackBMicrokernelTester()
.channels(n)
.kernel_tile(k)
.channel_tile(${CHANNEL_TILE})
.channel_subtile(${CHANNEL_SUBTILE})
.channel_round(${CHANNEL_ROUND})
.Test(${", ".join(TEST_ARGS)});
}
}
}
TEST(${TEST_NAME}, groups_gt_1) {
$if ISA_CHECK:
${ISA_CHECK};
for (size_t g = 2; g <= 3; g++) {
for (size_t kernel_tile = 1; kernel_tile < 4; kernel_tile++) {
for (size_t n = ${CHANNEL_TILE+1}; n < ${10 if CHANNEL_TILE == 1 else CHANNEL_TILE*2}; n++) {
PackBMicrokernelTester()
.groups(g)
.channels(n)
.kernel_tile(kernel_tile)
.channel_tile(${CHANNEL_TILE})
.channel_subtile(${CHANNEL_SUBTILE})
.channel_round(${CHANNEL_ROUND})
.Test(${", ".join(TEST_ARGS)});
}
}
}
}
"""
def generate_test_cases(ukernel, channel_tile, channel_subtile, channel_round, isa):
"""Generates all tests cases for a PACKB/ZEROB micro-kernel.
Args:
ukernel: C name of the micro-kernel function.
channel_tile: channel_tile parameter of the PACKB/ZEROB micro-kernel.
channel_subtile: channel_subtile parameter of the PACKB/ZEROB micro-kernel.
channel_round: channel_round parameter of the PACKB/ZEROB micro-kernel.
isa: instruction set required to run the micro-kernel. Generated unit test
will skip execution if the host processor doesn't support this ISA.
Returns:
Code for the test case.
"""
_, test_name = ukernel.split("_", 1)
_, datatype, ukernel_type, _ = ukernel.split("_", 3)
return xngen.preprocess(PACKB_TEST_TEMPLATE, {
"TEST_NAME": test_name.upper().replace("UKERNEL_", ""),
"TEST_ARGS": [ukernel],
"CHANNEL_TILE": channel_tile,
"CHANNEL_SUBTILE": channel_subtile,
"CHANNEL_ROUND": channel_round,
"ISA_CHECK": xnncommon.generate_isa_check_macro(isa),
"next_prime": next_prime,
})
def main(args):
options = parser.parse_args(args)
with codecs.open(options.spec, "r", encoding="utf-8") as spec_file:
spec_yaml = yaml.safe_load(spec_file)
if not isinstance(spec_yaml, list):
raise ValueError("expected a list of micro-kernels in the spec")
is_packb = 'packb' in options.spec
tests = """\
// Copyright 2023 Google LLC
//
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree.
//
// Auto-generated file. Do not edit!
// Specification: {specification}
// Generator: {generator}
#include <gtest/gtest.h>
#include <xnnpack/common.h>
#include <xnnpack/isa-checks.h>
#include <xnnpack/{packb}.h>
#include "packb-microkernel-tester.h"
""".format(specification=options.spec, generator=sys.argv[0], packb=("packb" if is_packb else "zerob"))
for ukernel_spec in spec_yaml:
name = ukernel_spec["name"]
channel_tile, channel_subtile, channel_round, arch, isa = split_ukernel_name(name)
test_case = generate_test_cases(name, channel_tile, channel_subtile, channel_round, isa)
tests += "\n\n" + xnncommon.postprocess_test_case(test_case, arch, isa)
txt_changed = True
if os.path.exists(options.output):
with codecs.open(options.output, "r", encoding="utf-8") as output_file:
txt_changed = output_file.read() != tests
if txt_changed:
with codecs.open(options.output, "w", encoding="utf-8") as output_file:
output_file.write(tests)
if __name__ == "__main__":
main(sys.argv[1:])