wehub-resource-sync
442 lines
17 KiB
Plaintext
442 lines
17 KiB
Plaintext
// 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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#ifndef PADDLE_WITH_HIP
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// HIP not support cusolver
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#include "paddle/phi/kernels/svd_kernel.h"
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#include "paddle/phi/backends/dynload/cusolver.h"
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#include "paddle/phi/common/memory_utils.h"
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#include "paddle/phi/core/kernel_registry.h"
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#include "paddle/phi/kernels/complex_kernel.h"
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#include "paddle/phi/kernels/empty_kernel.h"
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#include "paddle/phi/kernels/funcs/complex_functors.h"
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#include "paddle/phi/kernels/transpose_kernel.h"
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namespace phi {
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template <class T>
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static void GesvdjBatched(const GPUContext& dev_ctx,
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int batchSize,
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int m,
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int n,
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int k,
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T* A,
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T* U,
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T* V,
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dtype::Real<T>* S,
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int* info,
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int thin_UV = 1);
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template <>
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void GesvdjBatched<float>(const GPUContext& dev_ctx,
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int batchSize,
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int m,
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int n,
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int k,
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float* A,
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float* U,
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float* V,
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float* S,
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int* info,
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int thin_UV) {
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/* compute singular vectors */
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const cusolverEigMode_t jobz =
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CUSOLVER_EIG_MODE_VECTOR; /* compute singular vectors */
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gesvdjInfo_t gesvdj_params = NULL;
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int lda = m;
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int ldu = m;
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int ldt = n;
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int lwork = 0;
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auto handle = dev_ctx.cusolver_dn_handle();
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnCreateGesvdjInfo(&gesvdj_params));
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnSgesvdj_bufferSize(handle,
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jobz,
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thin_UV,
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m,
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n,
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A,
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lda,
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S,
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U,
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ldu,
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V,
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ldt,
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&lwork,
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gesvdj_params));
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auto workspace =
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memory_utils::Alloc(dev_ctx.GetPlace(),
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lwork * sizeof(float),
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Stream(reinterpret_cast<StreamId>(dev_ctx.stream())));
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float* workspace_ptr = reinterpret_cast<float*>(workspace->ptr());
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int64_t stride_A = static_cast<int64_t>(lda) * n;
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int64_t stride_U = static_cast<int64_t>(ldu) * (thin_UV ? k : m);
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int64_t stride_V = static_cast<int64_t>(ldt) * (thin_UV ? k : n);
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for (int i = 0; i < batchSize; ++i) {
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PADDLE_ENFORCE_GPU_SUCCESS(dynload::cusolverDnSgesvdj(handle,
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jobz,
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thin_UV,
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m,
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n,
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A + stride_A * i,
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lda,
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S + k * i,
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U + stride_U * i,
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ldu,
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V + stride_V * i,
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ldt,
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workspace_ptr,
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lwork,
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info,
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gesvdj_params));
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// check the error info
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int error_info;
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memory_utils::Copy(CPUPlace(),
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&error_info,
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dev_ctx.GetPlace(),
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info,
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sizeof(int),
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dev_ctx.stream());
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PADDLE_ENFORCE_EQ(
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error_info,
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0,
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common::errors::PreconditionNotMet(
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"For batch [%d]: CUSolver SVD is not zero. [%d]", i, error_info));
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}
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnDestroyGesvdjInfo(gesvdj_params));
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}
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template <>
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void GesvdjBatched<double>(const GPUContext& dev_ctx,
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int batchSize,
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int m,
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int n,
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int k,
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double* A,
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double* U,
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double* V,
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double* S,
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int* info,
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int thin_UV) {
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/* compute singular vectors */
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const cusolverEigMode_t jobz =
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CUSOLVER_EIG_MODE_VECTOR; /* compute singular vectors */
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gesvdjInfo_t gesvdj_params = NULL;
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int lda = m;
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int ldu = m;
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int ldt = n;
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int lwork = 0;
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auto handle = dev_ctx.cusolver_dn_handle();
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnCreateGesvdjInfo(&gesvdj_params));
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnDgesvdj_bufferSize(handle,
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jobz,
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thin_UV,
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m,
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n,
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A,
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lda,
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S,
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U,
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ldu,
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V,
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ldt,
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&lwork,
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gesvdj_params));
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auto workspace =
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memory_utils::Alloc(dev_ctx.GetPlace(),
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lwork * sizeof(double),
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Stream(reinterpret_cast<StreamId>(dev_ctx.stream())));
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double* workspace_ptr = reinterpret_cast<double*>(workspace->ptr());
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int64_t stride_A = static_cast<int64_t>(lda) * n;
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int64_t stride_U = static_cast<int64_t>(ldu) * (thin_UV ? k : m);
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int64_t stride_V = static_cast<int64_t>(ldt) * (thin_UV ? k : n);
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for (int i = 0; i < batchSize; ++i) {
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PADDLE_ENFORCE_GPU_SUCCESS(dynload::cusolverDnDgesvdj(handle,
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jobz,
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thin_UV,
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m,
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n,
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A + stride_A * i,
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lda,
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S + k * i,
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U + stride_U * i,
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ldu,
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V + stride_V * i,
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ldt,
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workspace_ptr,
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lwork,
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info,
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gesvdj_params));
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// check the error info
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int error_info;
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memory_utils::Copy(CPUPlace(),
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&error_info,
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dev_ctx.GetPlace(),
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info,
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sizeof(int),
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dev_ctx.stream());
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PADDLE_ENFORCE_EQ(
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error_info,
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0,
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common::errors::PreconditionNotMet(
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"For batch [%d]: CUSolver SVD is not zero. [%d]", i, error_info));
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}
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnDestroyGesvdjInfo(gesvdj_params));
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}
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template <>
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void GesvdjBatched<complex64>(const GPUContext& dev_ctx,
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int batchSize,
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int m,
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int n,
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int k,
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complex64* A,
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complex64* U,
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complex64* V,
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float* S,
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int* info,
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int thin_UV) {
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/* compute singular vectors */
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const cusolverEigMode_t jobz =
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CUSOLVER_EIG_MODE_VECTOR; /* compute singular vectors */
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gesvdjInfo_t gesvdj_params = NULL;
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int lda = m;
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int ldu = m;
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int ldt = n;
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int lwork = 0;
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auto handle = dev_ctx.cusolver_dn_handle();
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnCreateGesvdjInfo(&gesvdj_params));
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnCgesvdj_bufferSize(handle,
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jobz,
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thin_UV,
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m,
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n,
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reinterpret_cast<cuComplex*>(A),
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lda,
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S,
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reinterpret_cast<cuComplex*>(U),
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ldu,
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reinterpret_cast<cuComplex*>(V),
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ldt,
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&lwork,
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gesvdj_params));
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auto workspace =
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memory_utils::Alloc(dev_ctx.GetPlace(),
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lwork * sizeof(complex64),
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Stream(reinterpret_cast<StreamId>(dev_ctx.stream())));
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complex64* workspace_ptr = reinterpret_cast<complex64*>(workspace->ptr());
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int64_t stride_A = static_cast<int64_t>(lda) * n;
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int64_t stride_U = static_cast<int64_t>(ldu) * (thin_UV ? k : m);
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int64_t stride_V = static_cast<int64_t>(ldt) * (thin_UV ? k : n);
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for (int i = 0; i < batchSize; ++i) {
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PADDLE_ENFORCE_GPU_SUCCESS(dynload::cusolverDnCgesvdj(
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handle,
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jobz,
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thin_UV,
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m,
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n,
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reinterpret_cast<cuComplex*>(A + stride_A * i),
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lda,
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reinterpret_cast<float*>(S + k * i),
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reinterpret_cast<cuComplex*>(U + stride_U * i),
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ldu,
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reinterpret_cast<cuComplex*>(V + stride_V * i),
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ldt,
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reinterpret_cast<cuComplex*>(workspace_ptr),
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lwork,
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info,
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gesvdj_params));
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// check the error info
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int error_info;
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memory_utils::Copy(CPUPlace(),
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&error_info,
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dev_ctx.GetPlace(),
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info,
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sizeof(int),
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dev_ctx.stream());
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PADDLE_ENFORCE_EQ(
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error_info,
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0,
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common::errors::PreconditionNotMet(
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"For batch [%d]: CUSolver SVD is not zero. [%d]", i, error_info));
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}
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnDestroyGesvdjInfo(gesvdj_params));
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}
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template <>
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void GesvdjBatched<complex128>(const GPUContext& dev_ctx,
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int batchSize,
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int m,
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int n,
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int k,
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complex128* A,
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complex128* U,
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complex128* V,
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double* S,
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int* info,
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int thin_UV) {
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/* compute singular vectors */
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const cusolverEigMode_t jobz =
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CUSOLVER_EIG_MODE_VECTOR; /* compute singular vectors */
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gesvdjInfo_t gesvdj_params = NULL;
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int lda = m;
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int ldu = m;
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int ldt = n;
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int lwork = 0;
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auto handle = dev_ctx.cusolver_dn_handle();
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnCreateGesvdjInfo(&gesvdj_params));
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PADDLE_ENFORCE_GPU_SUCCESS(dynload::cusolverDnZgesvdj_bufferSize(
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handle,
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jobz,
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thin_UV,
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m,
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n,
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reinterpret_cast<cuDoubleComplex*>(A),
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lda,
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S,
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reinterpret_cast<cuDoubleComplex*>(U),
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ldu,
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reinterpret_cast<cuDoubleComplex*>(V),
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ldt,
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&lwork,
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gesvdj_params));
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auto workspace =
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memory_utils::Alloc(dev_ctx.GetPlace(),
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lwork * sizeof(complex128),
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Stream(reinterpret_cast<StreamId>(dev_ctx.stream())));
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complex128* workspace_ptr = reinterpret_cast<complex128*>(workspace->ptr());
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int64_t stride_A = static_cast<int64_t>(lda) * n;
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int64_t stride_U = static_cast<int64_t>(ldu) * (thin_UV ? k : m);
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int64_t stride_V = static_cast<int64_t>(ldt) * (thin_UV ? k : n);
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for (int i = 0; i < batchSize; ++i) {
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PADDLE_ENFORCE_GPU_SUCCESS(dynload::cusolverDnZgesvdj(
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handle,
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jobz,
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thin_UV,
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m,
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n,
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reinterpret_cast<cuDoubleComplex*>(A + stride_A * i),
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lda,
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reinterpret_cast<double*>(S + k * i),
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reinterpret_cast<cuDoubleComplex*>(U + stride_U * i),
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ldu,
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reinterpret_cast<cuDoubleComplex*>(V + stride_V * i),
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ldt,
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reinterpret_cast<cuDoubleComplex*>(workspace_ptr),
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lwork,
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info,
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gesvdj_params));
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// check the error info
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int error_info;
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memory_utils::Copy(CPUPlace(),
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&error_info,
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dev_ctx.GetPlace(),
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info,
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sizeof(int),
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dev_ctx.stream());
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PADDLE_ENFORCE_EQ(
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error_info,
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0,
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common::errors::PreconditionNotMet(
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"For batch [%d]: CUSolver SVD is not zero. [%d]", i, error_info));
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}
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PADDLE_ENFORCE_GPU_SUCCESS(
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dynload::cusolverDnDestroyGesvdjInfo(gesvdj_params));
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}
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template <typename T, typename Context>
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void SvdKernel(const Context& dev_ctx,
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const DenseTensor& X,
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bool full_matrices,
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DenseTensor* U,
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DenseTensor* S,
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DenseTensor* VH) {
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if (X.numel() == 0) {
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dev_ctx.template Alloc<T>(U);
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dev_ctx.template Alloc<dtype::Real<T>>(S);
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dev_ctx.template Alloc<T>(VH);
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return;
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}
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auto& dims = X.dims();
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int64_t batch_count64 = 1;
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for (int i = 0; i < dims.size() - 2; i++) {
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batch_count64 *= dims[i];
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}
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// TODO(large-tensor): cusolver batch_count not support int64
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PADDLE_ENFORCE_LE_INT_MAX(batch_count64, "batch_count");
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int batch_count = static_cast<int>(batch_count64);
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int rank = dims.size();
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int64_t m = dims[rank - 2];
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int64_t n = dims[rank - 1];
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// TODO(large-tensor): cusolver m/n not support int64
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PADDLE_ENFORCE_LE_INT_MAX(m, "m");
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PADDLE_ENFORCE_LE_INT_MAX(n, "n");
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int m_int = static_cast<int>(m);
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int n_int = static_cast<int>(n);
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auto* u_data = dev_ctx.template Alloc<T>(U);
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auto* vh_data = dev_ctx.template Alloc<T>(VH);
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auto* s_data = dev_ctx.template Alloc<dtype::Real<T>>(S);
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// NOTE:(@xiongkun03)
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// matrices are assumed to be stored in column-major order in cusolver
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// then view A as n x m and do A^T SVD, we can avoid transpose
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// Must Copy X once, because the gesvdj will change the origin input matrix
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DenseTensor x_tmp;
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Copy(dev_ctx, X, dev_ctx.GetPlace(), false, &x_tmp);
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auto info = Empty<int, Context>(dev_ctx, {batch_count});
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int* info_ptr = reinterpret_cast<int*>(info.data());
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GesvdjBatched<T>(dev_ctx,
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batch_count,
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n_int,
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m_int,
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std::min(m_int, n_int),
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dev_ctx.template Alloc<T>(&x_tmp),
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vh_data,
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u_data,
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s_data,
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info_ptr,
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!full_matrices);
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auto UT_dim = U->dims();
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std::swap(UT_dim[rank - 1], UT_dim[rank - 2]); // Get the dim of UT_dim
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U->Resize(UT_dim); // U is entirely UT
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auto tmp_U = TransposeLast2Dim<T>(dev_ctx, Conj<T, Context>(dev_ctx, *U));
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U->ShareDataWith(tmp_U); // U becomse UT, aka VT;
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}
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} // namespace phi
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PD_REGISTER_KERNEL(svd, // cuda_only
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GPU,
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ALL_LAYOUT,
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phi::SvdKernel,
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float,
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double,
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phi::complex64,
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phi::complex128) {}
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#endif // not PADDLE_WITH_HIP
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