cavis/libnd4j/include/memory/MemoryRegistrator.h

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/*******************************************************************************
* 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
******************************************************************************/
//
// Created by raver119 on 12.09.17.
//
#ifndef LIBND4J_MEMORYREGISTRATOR_H
#define LIBND4J_MEMORYREGISTRATOR_H
#include "Workspace.h"
#include <map>
#include <mutex>
#include <dll.h>
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namespace nd4j {
namespace memory {
class ND4J_EXPORT MemoryRegistrator {
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protected:
static MemoryRegistrator* _INSTANCE;
Workspace* _workspace;
std::map<Nd4jLong, Nd4jLong> _footprint;
std::mutex _lock;
MemoryRegistrator();
~MemoryRegistrator() = default;
public:
static MemoryRegistrator* getInstance();
bool hasWorkspaceAttached();
Workspace* getWorkspace();
void attachWorkspace(Workspace* workspace);
void forgetWorkspace();
/**
* This method allows you to set memory requirements for given graph
*/
void setGraphMemoryFootprint(Nd4jLong hash, Nd4jLong bytes);
/**
* This method allows you to set memory requirements for given graph, ONLY if
* new amount of bytes is greater then current one
*/
void setGraphMemoryFootprintIfGreater(Nd4jLong hash, Nd4jLong bytes);
/**
* This method returns memory requirements for given graph
*/
Nd4jLong getGraphMemoryFootprint(Nd4jLong hash);
};
}
}
#endif //LIBND4J_MEMORYREGISTRATOR_H