wehub-resource-sync
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
// Copyright (c) 2021 CINN 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 <numeric>
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#include <vector>
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#include "paddle/cinn/backends/cuda_util.h"
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namespace cinn {
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namespace runtime {
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namespace cuda {
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namespace util {
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template <typename T>
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class Vector {
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public:
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explicit Vector(const std::vector<T>& other) : size_{other.size()} {
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size_t bytes = sizeof(T) * size_;
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CUDA_CALL(cudaMalloc(&ptr_, bytes));
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CUDA_CALL(cudaMemcpy(ptr_, other.data(), bytes, cudaMemcpyHostToDevice));
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}
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explicit Vector(size_t size) : size_{size} {
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size_t bytes = sizeof(T) * size_;
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CUDA_CALL(cudaMalloc(&ptr_, bytes));
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CUDA_CALL(cudaMemset(ptr_, 0, bytes));
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}
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std::vector<T> to_host() const {
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std::vector<T> ret(size_);
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size_t bytes = sizeof(T) * size_;
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CUDA_CALL(cudaMemcpy(ret.data(), ptr_, bytes, cudaMemcpyDeviceToHost));
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return ret;
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}
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~Vector() { CUDA_CALL(cudaFree(ptr_)); }
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size_t size() const { return size_; }
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T* data() const { return ptr_; }
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private:
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size_t size_{};
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T* ptr_{};
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};
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} // namespace util
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} // namespace cuda
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} // namespace runtime
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} // namespace cinn
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