org.nd4j.linalg.api.memory.AllocationsTracker Maven / Gradle / Ivy
/*******************************************************************************
* 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
******************************************************************************/
package org.nd4j.linalg.api.memory;
import lombok.extern.slf4j.Slf4j;
import lombok.val;
import lombok.var;
import org.nd4j.linalg.api.memory.enums.AllocationKind;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* This class provides methods for tracking different memory allocations
* @author [email protected]
*/
@Slf4j
public class AllocationsTracker {
private static final AllocationsTracker INSTANCE = new AllocationsTracker();
private Map devices = new ConcurrentHashMap<>();
protected AllocationsTracker() {
}
public static AllocationsTracker getInstance() {
return INSTANCE;
}
protected DeviceAllocationsTracker trackerForDevice(Integer deviceId) {
var tracker = devices.get(deviceId);
if (tracker == null) {
synchronized (this) {
tracker = devices.get(deviceId);
if (tracker == null) {
tracker = new DeviceAllocationsTracker();
devices.put(deviceId, tracker);
}
}
}
return tracker;
}
public void markAllocated(AllocationKind kind, Integer deviceId, long bytes) {
val tracker = trackerForDevice(deviceId);
tracker.updateState(kind, bytes);
}
public void markReleased(AllocationKind kind, Integer deviceId, long bytes) {
val tracker = trackerForDevice(deviceId);
tracker.updateState(kind, -bytes);
}
public long bytesOnDevice(Integer deviceId) {
return bytesOnDevice(AllocationKind.GENERAL, deviceId);
}
public long bytesOnDevice(AllocationKind kind, Integer deviceId) {
val tracker = trackerForDevice(deviceId);
return tracker.getState(kind);
}
}