wehub-resource-sync
72 lines
2.9 KiB
C++
72 lines
2.9 KiB
C++
// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/phi/kernels/prelu_grad_kernel.h"
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#include "paddle/phi/backends/onednn/onednn_reuse.h"
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#include "paddle/phi/core/kernel_registry.h"
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#include "paddle/phi/kernels/full_kernel.h"
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namespace phi {
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template <typename T, typename Context>
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void PReluGradKernel(const Context& dev_ctx,
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const DenseTensor& x,
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const DenseTensor& alpha,
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const DenseTensor& out_grad,
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const std::string& data_format,
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const std::string& mode,
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DenseTensor* x_grad,
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DenseTensor* alpha_grad) {
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if (x_grad->numel() == 0) {
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dev_ctx.template Alloc<T>(x_grad);
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if (alpha_grad) {
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Full<T, Context>(dev_ctx, alpha_grad->dims(), 0, alpha_grad);
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}
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}
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bool is_test = dev_ctx.HasDnnAttr("is_test")
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? PADDLE_GET_CONST(bool, dev_ctx.GetDnnAttr("is_test"))
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: false;
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funcs::PReluOneDNNHandler<T> handler(dev_ctx.GetEngine(),
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dev_ctx.GetPlace(),
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x,
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alpha,
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mode,
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data_format,
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is_test);
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auto src_memory_p = handler.AcquireSrcMemory(&x);
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auto weights_memory_p =
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handler.AcquireWeightsMemoryPossiblyWithReorder(&alpha, is_test);
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auto diff_src_memory_p = handler.AcquireDiffSrcMemory(x_grad);
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auto diff_weights_memory_p = handler.AcquireDiffWeightsMemory(alpha_grad);
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auto diff_dst_memory_p = handler.AcquireDiffDstMemory(&out_grad);
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auto prelu_p = handler.AcquireBackwardPrimitive();
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auto& astream = OneDNNContext::tls().get_stream();
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prelu_p->execute(astream,
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{{DNNL_ARG_SRC, *src_memory_p},
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{DNNL_ARG_WEIGHTS, *weights_memory_p},
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{DNNL_ARG_DIFF_DST, *diff_dst_memory_p},
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{DNNL_ARG_DIFF_SRC, *diff_src_memory_p},
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{DNNL_ARG_DIFF_WEIGHTS, *diff_weights_memory_p}});
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astream.wait();
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x_grad->set_mem_desc(diff_src_memory_p->get_desc());
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}
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} // namespace phi
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PD_REGISTER_KERNEL(
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prelu_grad, OneDNN, ONEDNN, phi::PReluGradKernel, float, phi::bfloat16) {}
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