cavis/libnd4j/include/memory/Workspace.h

109 lines
3.3 KiB
C
Raw Normal View History

2019-06-06 14:21:15 +02:00
/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://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.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
//
// This class implements Workspace functionality in c++
//
//
// @author raver119@gmail.com
//
#ifndef LIBND4J_WORKSPACE_H
#define LIBND4J_WORKSPACE_H
#include <atomic>
#include <vector>
#include <mutex>
#include <system/dll.h>
#include <system/pointercast.h>
2019-06-06 14:21:15 +02:00
#include <types/float16.h>
#include <memory/ExternalWorkspace.h>
#include <memory/MemoryType.h>
namespace sd {
2019-06-06 14:21:15 +02:00
namespace memory {
class ND4J_EXPORT Workspace {
protected:
char* _ptrHost = nullptr;
char* _ptrDevice = nullptr;
bool _allocatedHost = false;
bool _allocatedDevice = false;
std::atomic<Nd4jLong> _offset;
std::atomic<Nd4jLong> _offsetSecondary;
Nd4jLong _initialSize = 0L;
Nd4jLong _initialSizeSecondary = 0L;
Nd4jLong _currentSize = 0L;
Nd4jLong _currentSizeSecondary = 0L;
std::mutex _mutexAllocation;
std::mutex _mutexSpills;
bool _externalized = false;
std::vector<void*> _spills;
std::vector<void*> _spillsSecondary;
std::atomic<Nd4jLong> _spillsSize;
std::atomic<Nd4jLong> _cycleAllocations;
std::atomic<Nd4jLong> _spillsSizeSecondary;
std::atomic<Nd4jLong> _cycleAllocationsSecondary;
void init(Nd4jLong primaryBytes, Nd4jLong secondaryBytes = 0L);
void freeSpills();
public:
explicit Workspace(ExternalWorkspace *external);
Workspace(Nd4jLong initialSize = 0L, Nd4jLong secondaryBytes = 0L);
~Workspace();
Nd4jLong getAllocatedSize();
Nd4jLong getCurrentSize();
Nd4jLong getCurrentOffset();
Nd4jLong getSpilledSize();
Nd4jLong getUsedSize();
Nd4jLong getAllocatedSecondarySize();
Nd4jLong getCurrentSecondarySize();
Nd4jLong getCurrentSecondaryOffset();
Nd4jLong getSpilledSecondarySize();
Nd4jLong getUsedSecondarySize();
void expandBy(Nd4jLong primaryBytes, Nd4jLong secondaryBytes = 0L);
void expandTo(Nd4jLong primaryBytes, Nd4jLong secondaryBytes = 0L);
// bool resizeSupported();
void* allocateBytes(Nd4jLong numBytes);
void* allocateBytes(MemoryType type, Nd4jLong numBytes);
void scopeIn();
void scopeOut();
/*
* This method creates NEW workspace of the same memory size and returns pointer to it
*/
Workspace* clone();
};
}
}
#endif //LIBND4J_WORKSPACE_H