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paddlepaddle--paddle/paddle/phi/kernels/onednn/pool_grad_kernel.cc
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2026-07-13 12:40:42 +08:00

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// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "paddle/phi/kernels/pool_grad_kernel.h"
#include "paddle/phi/backends/onednn/onednn_reuse.h"
#include "paddle/phi/core/kernel_registry.h"
namespace phi {
bool Pool2dGradCheckIfOneDNNSupport(const KernelContext* dev_ctx) {
if (dev_ctx->AttrAt<bool>(8) == false) {
// adaptive
return true;
}
// oneDNN is supporting only unchangeable in size pool window
auto src_tz = vectorize(dev_ctx->InputAt<DenseTensor>(0).dims());
const TensorRef& kernel_size_tmp = dev_ctx->AttrAt<TensorRef>(0);
IntArray kernel_size_array = IntArray(*kernel_size_tmp.Get());
std::vector<int64_t> kernel_size = kernel_size_array.GetData();
// Fast but not exhaustive check
return ((src_tz[src_tz.size() - 1] % kernel_size[1] == 0) &&
(src_tz[src_tz.size() - 2] % kernel_size[0] == 0));
}
template <typename T, typename Context>
void Pool2dGradKernel(const Context& dev_ctx,
const DenseTensor& x,
const DenseTensor& out UNUSED,
const DenseTensor& dout,
const IntArray& kernel_size,
const std::vector<int64_t>& strides,
const std::vector<int64_t>& paddings,
bool ceil_mode,
bool exclusive,
const std::string& data_format UNUSED,
const std::string& pooling_type,
bool global_pooling,
bool adaptive,
const std::string& padding_algorithm,
DenseTensor* dx) {
funcs::PoolingOneDNNHandler<T> handler(dev_ctx,
pooling_type,
kernel_size,
strides,
paddings,
global_pooling,
padding_algorithm,
ceil_mode,
exclusive,
adaptive,
&x,
&dout,
dx);
auto diff_dst_memory = handler.AcquireDiffDstMemory(&dout);
auto diff_src_memory = handler.AcquireDiffSrcMemory(dx);
auto pool_bwd_p = handler.AcquireBackwardPrimitive();
auto& astream = OneDNNContext::tls().get_stream();
if (pooling_type == "max") {
// Max - pooling needs Workspace
auto workspace_memory = handler.AcquireWorkspaceMemory(dev_ctx, "Out");
pool_bwd_p->execute(astream,
{{DNNL_ARG_DIFF_SRC, *diff_src_memory},
{DNNL_ARG_DIFF_DST, *diff_dst_memory},
{DNNL_ARG_WORKSPACE, *workspace_memory}});
} else {
// Average Pooling
pool_bwd_p->execute(astream,
{{DNNL_ARG_DIFF_SRC, *diff_src_memory},
{DNNL_ARG_DIFF_DST, *diff_dst_memory}});
}
astream.wait();
dx->set_mem_desc(diff_src_memory->get_desc());
}
phi::KernelKey PoolOpGradGetKernelTypeForVar(
const GetKernelTypeForVarContext* dev_ctx) {
const DenseTensor& tensor = dev_ctx->GetTensor();
const KernelKey& expected_kernel_type = dev_ctx->GetKernelKey();
#ifdef PADDLE_WITH_DNNL
if ((expected_kernel_type.layout() == DataLayout::ONEDNN) &&
(tensor.layout() != DataLayout::ONEDNN)) {
const AttributeMap& attrs = dev_ctx->GetAttrs();
auto it = attrs.find("data_format");
const std::string data_format = PADDLE_GET_CONST(std::string, it->second);
return phi::KernelKey(tensor.place(),
StringToDataLayout(data_format),
expected_kernel_type.dtype());
}
#endif
return phi::KernelKey(
tensor.place(), tensor.layout(), expected_kernel_type.dtype());
}
} // namespace phi
PD_REGISTER_KERNEL(
pool2d_grad, OneDNN, ONEDNN, phi::Pool2dGradKernel, float, phi::bfloat16) {
kernel->get_kerneltype_forvar_fn_ = phi::PoolOpGradGetKernelTypeForVar;
kernel->check_if_onednn_kernel_support_ = phi::Pool2dGradCheckIfOneDNNSupport;
}