109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
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/*******************************************************************************
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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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// This class implements Workspace functionality in c++
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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 LIBND4J_WORKSPACE_H
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#define LIBND4J_WORKSPACE_H
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#include <atomic>
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#include <vector>
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#include <mutex>
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#include <dll.h>
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#include <pointercast.h>
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#include <types/float16.h>
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#include <memory/ExternalWorkspace.h>
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#include <memory/MemoryType.h>
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namespace nd4j {
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namespace memory {
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class ND4J_EXPORT Workspace {
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protected:
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char* _ptrHost = nullptr;
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char* _ptrDevice = nullptr;
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bool _allocatedHost = false;
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bool _allocatedDevice = false;
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std::atomic<Nd4jLong> _offset;
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std::atomic<Nd4jLong> _offsetSecondary;
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Nd4jLong _initialSize = 0L;
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Nd4jLong _initialSizeSecondary = 0L;
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Nd4jLong _currentSize = 0L;
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Nd4jLong _currentSizeSecondary = 0L;
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std::mutex _mutexAllocation;
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std::mutex _mutexSpills;
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bool _externalized = false;
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std::vector<void*> _spills;
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std::vector<void*> _spillsSecondary;
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std::atomic<Nd4jLong> _spillsSize;
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std::atomic<Nd4jLong> _cycleAllocations;
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std::atomic<Nd4jLong> _spillsSizeSecondary;
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std::atomic<Nd4jLong> _cycleAllocationsSecondary;
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void init(Nd4jLong primaryBytes, Nd4jLong secondaryBytes = 0L);
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void freeSpills();
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public:
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explicit Workspace(ExternalWorkspace *external);
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Workspace(Nd4jLong initialSize = 0L, Nd4jLong secondaryBytes = 0L);
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~Workspace();
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Nd4jLong getAllocatedSize();
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Nd4jLong getCurrentSize();
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Nd4jLong getCurrentOffset();
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Nd4jLong getSpilledSize();
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Nd4jLong getUsedSize();
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Nd4jLong getAllocatedSecondarySize();
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Nd4jLong getCurrentSecondarySize();
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Nd4jLong getCurrentSecondaryOffset();
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Nd4jLong getSpilledSecondarySize();
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Nd4jLong getUsedSecondarySize();
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void expandBy(Nd4jLong primaryBytes, Nd4jLong secondaryBytes = 0L);
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void expandTo(Nd4jLong primaryBytes, Nd4jLong secondaryBytes = 0L);
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// bool resizeSupported();
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void* allocateBytes(Nd4jLong numBytes);
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void* allocateBytes(MemoryType type, Nd4jLong numBytes);
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void scopeIn();
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void scopeOut();
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/*
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* This method creates NEW workspace of the same memory size and returns pointer to it
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*/
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Workspace* clone();
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};
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}
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}
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#endif //LIBND4J_WORKSPACE_H
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