2019-06-06 15:21:15 +03:00

61 lines
2.3 KiB
Java

/*******************************************************************************
* 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.deeplearning4j.optimize.listeners;
import lombok.extern.slf4j.Slf4j;
import org.deeplearning4j.nn.api.Model;
import org.deeplearning4j.optimize.api.BaseTrainingListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.Serializable;
import java.util.Date;
import java.util.concurrent.atomic.AtomicLong;
/**
* Time Iteration Listener.
* This listener displays into INFO logs the remaining time in minutes and the date of the end of the process.
* Remaining time is estimated from the amount of time for training so far, and the total number of iterations
* specified by the user
*/
@Slf4j
public class TimeIterationListener extends BaseTrainingListener implements Serializable {
private long start;
private int iterationCount;
private AtomicLong iterationCounter = new AtomicLong(0);
/**
* Constructor
* @param iterationCount The global number of iteration for training (all epochs)
*/
public TimeIterationListener(int iterationCount) {
this.iterationCount = iterationCount;
start = System.currentTimeMillis();
}
@Override
public void iterationDone(Model model, int iteration, int epoch) {
long currentIteration = iterationCounter.incrementAndGet();
long elapsed = System.currentTimeMillis() - start;
long remaining = (iterationCount - currentIteration) * elapsed / currentIteration;
long minutes = remaining / (1000 * 60);
Date date = new Date(start + elapsed + remaining);
log.info("Remaining time : " + minutes + "mn - End expected : " + date.toString());
}
}