org.nd4j.linalg.api.ops.performance.primitives.AveragingTransactionsHolder 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.ops.performance.primitives;
import lombok.NoArgsConstructor;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import lombok.val;
import org.nd4j.linalg.memory.MemcpyDirection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
/**
* @author [email protected]
*/
@Slf4j
public class AveragingTransactionsHolder {
private final List> storage = new ArrayList<>(MemcpyDirection.values().length);
private final List locks= new ArrayList<>(MemcpyDirection.values().length);
public AveragingTransactionsHolder() {
init();
}
protected void init() {
// filling map withi initial keys
for (val v: MemcpyDirection.values()) {
val o = v.ordinal();
storage.add(o, new ArrayList());
locks.add(o, new ReentrantReadWriteLock());
}
}
public void clear() {
for (val v: MemcpyDirection.values()) {
val o = v.ordinal();
try {
locks.get(o).writeLock().lock();
storage.get(o).clear();
} finally {
locks.get(o).writeLock().unlock();
}
}
}
public void addValue(@NonNull MemcpyDirection direction, Long value) {
val o = direction.ordinal();
try {
locks.get(o).writeLock().lock();
storage.get(o).add(value);
} finally {
locks.get(o).writeLock().unlock();
}
}
public Long getAverageValue(@NonNull MemcpyDirection direction) {
val o = direction.ordinal();
try {
Long r = 0L;
locks.get(o).readLock().lock();
val list = storage.get(o);
if (list.isEmpty())
return 0L;
for (val v : list)
r += v;
return r / list.size();
} finally {
locks.get(o).readLock().unlock();
}
}
}