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59 lines
1.6 KiB
59 lines
1.6 KiB
6 years ago
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// Copyright (c) 2019 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 <mutex> // NOLINT
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#include "paddle/fluid/platform/dynload/cublas.h"
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#include "paddle/fluid/platform/macros.h"
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#if CUDA_VERSION < 9000
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enum cublasMath_t { CUBLAS_DEFAULT_MATH = 0 };
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#endif
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namespace paddle {
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namespace platform {
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class CublasHandleHolder {
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public:
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CublasHandleHolder(cudaStream_t stream, cublasMath_t math_type) {
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PADDLE_ENFORCE(dynload::cublasCreate(&handle_));
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PADDLE_ENFORCE(dynload::cublasSetStream(handle_, stream));
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#if CUDA_VERSION >= 9000
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if (math_type == CUBLAS_TENSOR_OP_MATH) {
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PADDLE_ENFORCE(
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dynload::cublasSetMathMode(handle_, CUBLAS_TENSOR_OP_MATH));
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}
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#endif
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}
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~CublasHandleHolder() { PADDLE_ENFORCE(dynload::cublasDestroy(handle_)); }
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template <typename Callback>
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inline void Call(Callback &&callback) const {
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std::lock_guard<std::mutex> guard(mtx_);
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callback(handle_);
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}
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private:
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DISABLE_COPY_AND_ASSIGN(CublasHandleHolder);
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cublasHandle_t handle_;
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mutable std::mutex mtx_;
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};
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} // namespace platform
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} // namespace paddle
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