64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author raver119@gmail.com
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//
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#ifndef DEV_TESTS_CONSTANTHELPER_H
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#define DEV_TESTS_CONSTANTHELPER_H
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#include <op_boilerplate.h>
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#include <dll.h>
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#include <pointercast.h>
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#include <memory/Workspace.h>
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#include <vector>
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#include <map>
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#include <mutex>
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#include <array/ConstantDescriptor.h>
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#include <array/ConstantDataBuffer.h>
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#include <array/ConstantHolder.h>
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namespace nd4j {
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class ND4J_EXPORT ConstantHelper {
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private:
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static ConstantHelper* _INSTANCE;
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ConstantHelper();
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std::vector<std::map<ConstantDescriptor, ConstantHolder>> _cache;
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// tracking of per-device constant memory buffers (CUDA only atm)
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std::vector<Nd4jPointer> _devicePointers;
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std::vector<Nd4jLong> _deviceOffsets;
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std::mutex _mutex;
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std::vector<Nd4jLong> _counters;
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public:
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~ConstantHelper() = default;
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static ConstantHelper* getInstance();
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static int getCurrentDevice();
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static int getNumberOfDevices();
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void* replicatePointer(void *src, size_t numBytes, memory::Workspace *workspace = nullptr);
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ConstantDataBuffer* constantBuffer(const ConstantDescriptor &descriptor, nd4j::DataType dataType);
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Nd4jLong getCachedAmount(int deviceId);
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};
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}
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#endif //DEV_TESTS_CONSTANTHELPER_H
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