chore: import upstream snapshot with attribution
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wehub-resource-sync
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/* Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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/core/kernel_registry.h"
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#include "paddle/phi/core/tensor_meta.h"
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#include "paddle/phi/core/tensor_utils.h"
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#include "paddle/phi/core/visit_type.h"
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#include "paddle/phi/kernels/funcs/blas/blas.h"
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#include "paddle/phi/kernels/sparse/cpu/conv.h"
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namespace phi::sparse {
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/**
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* x: (N, D, H, W, C)
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* kernel: (D, H, W, C, OC)
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* out: (N, D, H, W, OC)
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**/
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template <typename T, typename IntT = int>
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void Conv3dCooCPUKernel(const CPUContext& dev_ctx,
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const SparseCooTensor& x,
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const DenseTensor& kernel,
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const std::vector<int>& paddings,
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const std::vector<int>& dilations,
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const std::vector<int>& strides,
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const int groups UNUSED,
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const bool subm,
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const std::string& key,
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SparseCooTensor* out,
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DenseTensor* rulebook,
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DenseTensor* counter) {
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// update padding and dilation
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// Currently, only support x.layout is NDHWC, groups = 1
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// if x.layout != NDHWC then transpose(x), transpose(weight)
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const auto& x_dims = x.dims();
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const bool is2D = x_dims.size() == 4 ? true : false;
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const auto& kernel_dims = kernel.dims();
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int kernel_size =
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static_cast<int>(is2D ? kernel_dims[0] * kernel_dims[1]
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: kernel_dims[0] * kernel_dims[1] * kernel_dims[2]);
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int count_tmp = is2D ? 4 : 5;
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std::vector<int> out_dims_vec(count_tmp, 1);
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DDim out_dims = make_ddim(out_dims_vec);
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std::vector<int> kernel_sizes(kernel_dims.size());
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for (int i = 0; i < kernel_dims.size(); i++) {
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kernel_sizes[i] = static_cast<int>(kernel_dims[i]);
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}
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std::vector<int> subm_paddings(paddings), subm_strides(strides);
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if (subm) {
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// the out shape of subm_conv is same as input shape
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// reset the padding=kernel_size/2 and strides=1
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funcs::sparse::ResetSubmKernelSizeAndStrides(
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kernel.dims(), &subm_paddings, &subm_strides);
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}
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funcs::sparse::GetOutShape(
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x_dims, kernel_sizes, subm_paddings, dilations, subm_strides, &out_dims);
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const int in_channels =
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static_cast<int>(is2D ? kernel_dims[2] : kernel_dims[3]);
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const int out_channels =
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static_cast<int>(is2D ? kernel_dims[3] : kernel_dims[4]);
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// Second algorithm:
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// https://pdfs.semanticscholar.org/5125/a16039cabc6320c908a4764f32596e018ad3.pdf
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// 1. product rulebook
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DenseTensor h_counter, h_offsets;
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h_counter.Resize({kernel_size});
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h_offsets.Resize({kernel_size + 1});
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int* h_counter_ptr = dev_ctx.template HostAlloc<int>(&h_counter);
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int* h_offsets_ptr = dev_ctx.template HostAlloc<int>(&h_offsets);
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// DenseTensor* rulebook = nullptr;
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const IntT* rulebook_ptr = nullptr;
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int n = 0;
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bool need_product_rulebook = true;
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if (subm && !key.empty()) {
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rulebook_ptr =
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funcs::sparse::PrepareSubm<T, IntT, CPUContext>(dev_ctx,
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x,
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key,
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out_dims,
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out,
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h_counter_ptr,
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h_offsets_ptr,
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&n,
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&need_product_rulebook);
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}
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if (need_product_rulebook) {
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DenseTensor tmp_rulebook;
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ProductRuleBook<T, CPUContext, IntT>(dev_ctx,
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x,
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kernel_sizes,
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subm_paddings,
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dilations,
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subm_strides,
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out_dims,
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subm,
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&tmp_rulebook,
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h_counter_ptr);
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UpdateRulebookAndOutIndex<T, CPUContext, IntT>(
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dev_ctx, x, kernel_size, out_channels, out_dims, &tmp_rulebook, out);
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n = static_cast<int>(tmp_rulebook.dims()[1]);
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rulebook_ptr = tmp_rulebook.data<IntT>();
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funcs::sparse::SaveToTable(
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dev_ctx, x, key, tmp_rulebook, h_counter, out, rulebook, counter);
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}
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// 2. gather
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DenseTensorMeta in_features_meta(
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x.dtype(), {n, in_channels}, DataLayout::NHWC);
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DenseTensorMeta out_features_meta(
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x.dtype(), {n, out_channels}, DataLayout::NHWC);
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DenseTensor in_features = Empty(dev_ctx, std::move(in_features_meta));
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DenseTensor out_features = Empty(dev_ctx, std::move(out_features_meta));
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T* in_features_ptr = in_features.data<T>();
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T* out_features_ptr = out_features.data<T>();
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Gather<T, IntT>(
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x.values().data<T>(), rulebook_ptr + n, n, in_channels, in_features_ptr);
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// 3. call gemm for every weight
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auto blas = funcs::GetBlas<CPUContext, T>(dev_ctx);
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int offset = 0;
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for (int i = 0; i < kernel_size; i++) {
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h_offsets_ptr[i] = offset;
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offset += h_counter_ptr[i];
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}
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h_offsets_ptr[kernel_size] = offset;
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const T* kernel_ptr = kernel.data<T>();
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for (int i = 0; i < kernel_size; i++) {
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if (h_counter_ptr[i] <= 0) {
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continue;
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}
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// call gemm: (n, in_channels) * (in_channels, out_channels)
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const int M = h_counter_ptr[i];
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const int K = in_channels; // in_channels
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const int N = out_channels; // out_channels
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T* tmp_in_ptr = in_features_ptr + h_offsets_ptr[i] * in_channels;
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const T* tmp_kernel_ptr = kernel_ptr + i * K * N;
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T* tmp_out_ptr = out_features_ptr + h_offsets_ptr[i] * out_channels;
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blas.GEMM(CblasNoTrans,
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CblasNoTrans,
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M,
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N,
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K,
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static_cast<T>(1),
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tmp_in_ptr,
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tmp_kernel_ptr,
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static_cast<T>(0),
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tmp_out_ptr);
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}
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// 4. scatter
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T* out_values_ptr = out->mutable_values()->data<T>();
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memset(out_values_ptr, 0, sizeof(T) * out->nnz() * out_channels);
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Scatter<T, IntT>(
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out_features_ptr, rulebook_ptr + n * 2, n, out_channels, out_values_ptr);
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}
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template <typename T, typename Context>
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void Conv3dCooKernel(const Context& dev_ctx,
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const SparseCooTensor& x,
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const DenseTensor& kernel,
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const std::vector<int>& paddings,
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const std::vector<int>& dilations,
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const std::vector<int>& strides,
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const int groups,
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const bool subm,
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const std::string& key,
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SparseCooTensor* out,
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DenseTensor* rulebook,
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DenseTensor* counter) {
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PD_VISIT_BASE_INTEGRAL_TYPES(x.indices().dtype(), "Conv3dCooCPUKernel", ([&] {
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Conv3dCooCPUKernel<T, data_t>(dev_ctx,
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x,
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kernel,
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paddings,
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dilations,
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strides,
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groups,
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subm,
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key,
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out,
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rulebook,
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counter);
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}));
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}
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} // namespace phi::sparse
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PD_REGISTER_KERNEL(
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conv3d_coo, CPU, ALL_LAYOUT, phi::sparse::Conv3dCooKernel, float, double) {
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kernel->InputAt(0).SetDataLayout(phi::DataLayout::SPARSE_COO);
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kernel->OutputAt(0).SetDataType(phi::DataType::UNDEFINED);
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kernel->OutputAt(1).SetDataType(phi::DataType::INT32);
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kernel->OutputAt(2).SetDataType(phi::DataType::INT32);
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}
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