wehub-resource-sync
69 lines
2.2 KiB
C++
69 lines
2.2 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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#pragma once
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#include <algorithm>
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#include <cfloat>
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#include <string>
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#include <vector>
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#include "paddle/phi/backends/gpu/gpu_dnn.h"
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#include "paddle/phi/common/amp_type_traits.h"
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#include "paddle/phi/kernels/funcs/cub.h"
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namespace phi {
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template <typename T>
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using CudnnDataType = backends::gpu::CudnnDataType<T>;
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template <typename T>
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using BatchNormParamType = typename CudnnDataType<T>::BatchNormParamType;
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template <typename T>
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static __global__ void repeat_param(const T *input,
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T *output,
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const int repeat_num,
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const int C) {
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CUDA_KERNEL_LOOP(i, repeat_num * C) {
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int index = i % C;
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output[i] = input[index];
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}
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}
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template <typename T, int BlockDim, bool AVG>
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static __global__ void add_param(const T *input,
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T *output,
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const int repeat_num,
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const int C) {
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using MPType = typename MPTypeTrait<T>::Type;
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typedef cub::BlockReduce<MPType, BlockDim> BlockReduce;
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__shared__ typename BlockReduce::TempStorage ou_storage;
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for (int i = blockIdx.x; i < C; i += gridDim.x) {
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MPType ou = static_cast<MPType>(0);
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for (int j = threadIdx.x; j < repeat_num; j += blockDim.x) {
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const int index = j * C + i;
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ou = ou + static_cast<MPType>(input[index]);
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}
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ou = BlockReduce(ou_storage).Reduce(ou, cub::Sum());
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if (threadIdx.x == 0) {
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output[i] = static_cast<T>(ou);
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}
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__syncthreads();
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if (AVG) {
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output[i] = static_cast<T>(static_cast<MPType>(output[i]) / repeat_num);
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}
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}
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}
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} // namespace phi
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