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sparse_blas.h
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sparse_blas.h
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// Copyright (c) 2018 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.
#pragma once
#include "paddle/phi/core/dense_tensor.h"
#include "paddle/phi/core/device_context.h"
#include "paddle/phi/core/sparse_coo_tensor.h"
#include "paddle/phi/core/sparse_csr_tensor.h"
namespace phi {
namespace funcs {
namespace sparse {
template <typename DeviceContext>
class SparseBlas {
public:
explicit SparseBlas(const DeviceContext& dev_ctx) : dev_ctx_(dev_ctx) {}
// TODO(zhouwei25): implement "COO @ DENSE -> DENSE" of DSDMM
template <typename T>
void DSDMM(bool transa,
bool transb,
T alpha,
const phi::SparseCooTensor& mat_a,
const phi::DenseTensor& mat_b,
T beta,
phi::DenseTensor* mat_c) const;
template <typename T>
void DSDMM(bool transa,
bool transb,
T alpha,
const phi::SparseCsrTensor& mat_a,
const phi::DenseTensor& mat_b,
T beta,
phi::DenseTensor* mat_c) const;
template <typename T>
void SDDMM(bool transa,
bool transb,
T alpha,
const phi::DenseTensor& mat_a,
const phi::DenseTensor& mat_b,
T beta,
phi::SparseCsrTensor* mat_c) const;
private:
const DeviceContext& dev_ctx_;
};
template <typename DeviceContext, typename T>
class SparseBlasT : private SparseBlas<DeviceContext> {
public:
using SparseBlas<DeviceContext>::SparseBlas;
template <typename... ARGS>
void DSDMM(ARGS... args) const {
Base()->template DSDMM<T>(args...);
}
template <typename... ARGS>
void SDDMM(ARGS... args) const {
Base()->template SDDMM<T>(args...);
}
private:
const SparseBlas<DeviceContext>* Base() const {
return static_cast<const SparseBlas<DeviceContext>*>(this);
}
};
template <typename DeviceContext, typename T>
inline SparseBlasT<DeviceContext, T> GetSparseBlas(
const DeviceContext& dev_ctx) {
return SparseBlasT<DeviceContext, T>(dev_ctx);
}
} // namespace sparse
} // namespace funcs
} // namespace phi
#if defined(PADDLE_WITH_CUDA) && CUDA_VERSION >= 11000
#include "paddle/phi/kernels/funcs/sparse/sparse_blas_impl.cu.h"
#endif