import torch
import triton
import triton.language as tl
from torch._inductor.runtime.triton_heuristics import grid
from torch._C import _cuda_getCurrentRawStream as get_raw_stream
from torch._inductor.runtime.triton_helpers import libdevice
import numpy as np
import torch.nn as nn
from torch.nn.parameter import Parameter
assert_size_stride = torch._C._dynamo.guards.assert_size_stride
empty_strided_cuda = torch._C._dynamo.guards._empty_strided_cuda
reinterpret_tensor = torch._C._dynamo.guards._reinterpret_tensor


@triton.jit
def triton_poi_fused_arange_0(out_ptr0, xnumel, XBLOCK: tl.constexpr):
    xnumel = 4
    xoffset = tl.program_id(0) * XBLOCK
    xindex = xoffset + tl.arange(0, XBLOCK)[:]
    xmask = xindex < xnumel
    x0 = xindex
    tmp0 = 4 * x0
    tl.store(out_ptr0 + x0, tmp0, xmask)


@triton.jit
def triton_poi_fused__to_copy_div_remainder_1(in_ptr0, out_ptr0, out_ptr1,
    xnumel, XBLOCK: tl.constexpr):
    xnumel = 16
    xoffset = tl.program_id(0) * XBLOCK
    xindex = xoffset + tl.arange(0, XBLOCK)[:]
    xmask = xindex < xnumel
    x0 = xindex
    tmp0 = tl.load(in_ptr0 + x0, xmask)
    tmp1 = 0.25
    tmp2 = tmp0 * tmp1
    tmp3 = tmp2.to(tl.int64)
    tmp4 = 4.0
    tmp5 = tmp0 % tmp4
    tmp6 = tl.full([1], 0, tl.int32)
    tmp7 = tmp5 != tmp6
    tmp8 = libdevice.signbit(tmp5) if tmp5.dtype is tl.float32 else tmp5 < 0
    tmp9 = libdevice.signbit(tmp4) if tmp4.dtype is tl.float32 else tmp4 < 0
    tmp10 = tmp8 != tmp9
    tmp11 = tmp7 & tmp10
    tmp12 = tmp5 + tmp4
    tmp13 = tl.where(tmp11, tmp12, tmp5)
    tmp14 = tmp13.to(tl.int64)
    tl.store(out_ptr0 + x0, tmp3, xmask)
    tl.store(out_ptr1 + x0, tmp14, xmask)


@triton.jit
def triton_poi_fused_mul_2(in_ptr0, in_ptr1, out_ptr0, xnumel, XBLOCK: tl.
    constexpr):
    xnumel = 16
    xoffset = tl.program_id(0) * XBLOCK
    xindex = xoffset + tl.arange(0, XBLOCK)[:]
    xmask = xindex < xnumel
    x0 = xindex
    tmp0 = tl.load(in_ptr0 + x0, xmask)
    tmp1 = tl.load(in_ptr1 + x0, xmask)
    tmp2 = tmp0 * tmp1
    tl.store(out_ptr0 + x0, tmp2, xmask)


def call(args):
    primals_1, primals_2, primals_3 = args
    args.clear()
    assert_size_stride(primals_1, (4, 4), (4, 1))
    assert_size_stride(primals_2, (1, 4), (4, 1))
    assert_size_stride(primals_3, (4, 4), (4, 1))
    with torch.cuda._DeviceGuard(0):
        torch.cuda.set_device(0)
        buf0 = empty_strided_cuda((4,), (1,), torch.int64)
        get_raw_stream(0)
        triton_poi_fused_arange_0[grid(4)](buf0, 4, XBLOCK=4, num_warps=1,
            num_stages=1)
        buf1 = empty_strided_cuda((4, 4), (4, 1), torch.int64)
        buf7 = empty_strided_cuda((4, 4), (4, 1), torch.int64)
        triton_poi_fused__to_copy_div_remainder_1[grid(16)](primals_1, buf1,
            buf7, 16, XBLOCK=16, num_warps=1, num_stages=1)
        del primals_1
        buf2 = torch.ops.aten._embedding_bag.default(primals_2,
            reinterpret_tensor(buf1, (16,), (1,), 0), buf0, False, 1)
        del primals_2
        buf3 = buf2[0]
        buf4 = buf2[1]
        buf5 = buf2[2]
        buf6 = buf2[3]
        del buf2
        buf8 = torch.ops.aten._embedding_bag.default(primals_3,
            reinterpret_tensor(buf7, (16,), (1,), 0), buf0, False, 1)
        del primals_3
        buf9 = buf8[0]
        buf10 = buf8[1]
        buf11 = buf8[2]
        buf12 = buf8[3]
        del buf8
        buf13 = empty_strided_cuda((4, 4), (4, 1), torch.float32)
        triton_poi_fused_mul_2[grid(16)](buf3, buf9, buf13, 16, XBLOCK=16,
            num_warps=1, num_stages=1)
    return buf13, buf0, reinterpret_tensor(buf1, (16,), (1,), 0
        ), buf3, buf4, buf5, buf6, reinterpret_tensor(buf7, (16,), (1,), 0
        ), buf9, buf10, buf11, buf12


class QREmbeddingBagNew(nn.Module):
    """Computes sums or means over two 'bags' of embeddings, one using the quotient
    of the indices and the other using the remainder of the indices, without
    instantiating the intermediate embeddings, then performs an operation to combine these.

    For bags of constant length and no :attr:`per_sample_weights`, this class

        * with ``mode="sum"`` is equivalent to :class:`~torch.nn.Embedding` followed by ``torch.sum(dim=0)``,
        * with ``mode="mean"`` is equivalent to :class:`~torch.nn.Embedding` followed by ``torch.mean(dim=0)``,
        * with ``mode="max"`` is equivalent to :class:`~torch.nn.Embedding` followed by ``torch.max(dim=0)``.

    However, :class:`~torch.nn.EmbeddingBag` is much more time and memory efficient than using a chain of these
    operations.

    QREmbeddingBag also supports per-sample weights as an argument to the forward
    pass. This scales the output of the Embedding before performing a weighted
    reduction as specified by ``mode``. If :attr:`per_sample_weights`` is passed, the
    only supported ``mode`` is ``"sum"``, which computes a weighted sum according to
    :attr:`per_sample_weights`.

    Known Issues:
    Autograd breaks with multiple GPUs. It breaks only with multiple embeddings.

    Args:
        num_categories (int): total number of unique categories. The input indices must be in
                              0, 1, ..., num_categories - 1.
        embedding_dim (list): list of sizes for each embedding vector in each table. If ``"add"``
                              or ``"mult"`` operation are used, these embedding dimensions must be
                              the same. If a single embedding_dim is used, then it will use this
                              embedding_dim for both embedding tables.
        num_collisions (int): number of collisions to enforce.
        operation (string, optional): ``"concat"``, ``"add"``, or ``"mult". Specifies the operation
                                      to compose embeddings. ``"concat"`` concatenates the embeddings,
                                      ``"add"`` sums the embeddings, and ``"mult"`` multiplies
                                      (component-wise) the embeddings.
                                      Default: ``"mult"``
        max_norm (float, optional): If given, each embedding vector with norm larger than :attr:`max_norm`
                                    is renormalized to have norm :attr:`max_norm`.
        norm_type (float, optional): The p of the p-norm to compute for the :attr:`max_norm` option. Default ``2``.
        scale_grad_by_freq (boolean, optional): if given, this will scale gradients by the inverse of frequency of
                                                the words in the mini-batch. Default ``False``.
                                                Note: this option is not supported when ``mode="max"``.
        mode (string, optional): ``"sum"``, ``"mean"`` or ``"max"``. Specifies the way to reduce the bag.
                                 ``"sum"`` computes the weighted sum, taking :attr:`per_sample_weights`
                                 into consideration. ``"mean"`` computes the average of the values
                                 in the bag, ``"max"`` computes the max value over each bag.
                                 Default: ``"mean"``
        sparse (bool, optional): if ``True``, gradient w.r.t. :attr:`weight` matrix will be a sparse tensor. See
                                 Notes for more details regarding sparse gradients. Note: this option is not
                                 supported when ``mode="max"``.

    Attributes:
        weight (Tensor): the learnable weights of each embedding table is the module of shape
                         `(num_embeddings, embedding_dim)` initialized using a uniform distribution
                         with sqrt(1 / num_categories).

    Inputs: :attr:`input` (LongTensor), :attr:`offsets` (LongTensor, optional), and
        :attr:`per_index_weights` (Tensor, optional)

        - If :attr:`input` is 2D of shape `(B, N)`,

          it will be treated as ``B`` bags (sequences) each of fixed length ``N``, and
          this will return ``B`` values aggregated in a way depending on the :attr:`mode`.
          :attr:`offsets` is ignored and required to be ``None`` in this case.

        - If :attr:`input` is 1D of shape `(N)`,

          it will be treated as a concatenation of multiple bags (sequences).
          :attr:`offsets` is required to be a 1D tensor containing the
          starting index positions of each bag in :attr:`input`. Therefore,
          for :attr:`offsets` of shape `(B)`, :attr:`input` will be viewed as
          having ``B`` bags. Empty bags (i.e., having 0-length) will have
          returned vectors filled by zeros.

        per_sample_weights (Tensor, optional): a tensor of float / double weights, or None
            to indicate all weights should be taken to be ``1``. If specified, :attr:`per_sample_weights`
            must have exactly the same shape as input and is treated as having the same
            :attr:`offsets`, if those are not ``None``. Only supported for ``mode='sum'``.


    Output shape: `(B, embedding_dim)`

    """
    __constants__ = ['num_categories', 'embedding_dim', 'num_collisions',
        'operation', 'max_norm', 'norm_type', 'scale_grad_by_freq', 'mode',
        'sparse']

    def __init__(self, num_categories, embedding_dim, num_collisions,
        operation='mult', max_norm=None, norm_type=2.0, scale_grad_by_freq=
        False, mode='mean', sparse=False, _weight=None):
        super(QREmbeddingBagNew, self).__init__()
        assert operation in ['concat', 'mult', 'add'], 'Not valid operation!'
        self.num_categories = num_categories
        if isinstance(embedding_dim, int) or len(embedding_dim) == 1:
            self.embedding_dim = [embedding_dim, embedding_dim]
        else:
            self.embedding_dim = embedding_dim
        self.num_collisions = num_collisions
        self.operation = operation
        self.max_norm = max_norm
        self.norm_type = norm_type
        self.scale_grad_by_freq = scale_grad_by_freq
        if self.operation == 'add' or self.operation == 'mult':
            assert self.embedding_dim[0] == self.embedding_dim[1
                ], 'Embedding dimensions do not match!'
        self.num_embeddings = [int(np.ceil(num_categories / num_collisions)
            ), num_collisions]
        if _weight is None:
            self.weight_q = Parameter(torch.Tensor(self.num_embeddings[0],
                self.embedding_dim[0]))
            self.weight_r = Parameter(torch.Tensor(self.num_embeddings[1],
                self.embedding_dim[1]))
            self.reset_parameters()
        else:
            assert list(_weight[0].shape) == [self.num_embeddings[0], self.
                embedding_dim[0]
                ], 'Shape of weight for quotient table does not match num_embeddings and embedding_dim'
            assert list(_weight[1].shape) == [self.num_embeddings[1], self.
                embedding_dim[1]
                ], 'Shape of weight for remainder table does not match num_embeddings and embedding_dim'
            self.weight_q = Parameter(_weight[0])
            self.weight_r = Parameter(_weight[1])
        self.mode = mode
        self.sparse = sparse

    def reset_parameters(self):
        nn.init.uniform_(self.weight_q, np.sqrt(1 / self.num_categories))
        nn.init.uniform_(self.weight_r, np.sqrt(1 / self.num_categories))

    def extra_repr(self):
        s = '{num_embeddings}, {embedding_dim}'
        if self.max_norm is not None:
            s += ', max_norm={max_norm}'
        if self.norm_type != 2:
            s += ', norm_type={norm_type}'
        if self.scale_grad_by_freq is not False:
            s += ', scale_grad_by_freq={scale_grad_by_freq}'
        s += ', mode={mode}'
        return s.format(**self.__dict__)

    def forward(self, input_0):
        primals_2 = self.weight_q
        primals_1 = self.weight_r
        primals_3 = input_0
        output = call([primals_1, primals_2, primals_3])
        return output[0]


Measured latency_ms: 0.062357