/*
* Copyright (C) 2008 Yohan Liyanage.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://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.
*/
package org.nebulaframework.benchmark.scimark.grid.jobs;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import org.nebulaframework.benchmark.scimark.Stopwatch;
import org.nebulaframework.benchmark.scimark.grid.CalculationSupport;
import org.nebulaframework.benchmark.scimark.grid.ExecutionResult;
import org.nebulaframework.benchmark.scimark.grid.tasks.FFTTask;
import org.nebulaframework.core.job.splitaggregate.SplitAggregateGridJob;
import org.nebulaframework.core.task.GridTask;
/**
* FFT Benchmark Job.
*
* @author Yohan Liyanage
* @version 1.0
*/
public class BenchmarkFFT extends AbstractBenchmarkJob implements SplitAggregateGridJob<ExecutionResult, Double> {
private static final long serialVersionUID = 9146126605813424591L;
private Stopwatch sw = new Stopwatch();
public BenchmarkFFT() {
super();
}
public BenchmarkFFT(int taskCount) {
super(taskCount);
}
@Override
public List<GridTask<ExecutionResult>> split() {
List<GridTask<ExecutionResult>> list = new ArrayList<GridTask<ExecutionResult>>();
for (int i=0;i<taskCount;i++){
list.add(new FFTTask(random));
}
sw.start();
return list;
}
@Override
public Double aggregate(List<? extends Serializable> results) {
sw.stop();
double overallTime = sw.read();
long cycles = 0;
double calcTime = 0;
double execTime = 0;
for (Serializable result : results) {
if (result instanceof ExecutionResult) {
ExecutionResult exResult = (ExecutionResult) result;
cycles += exResult.getCycles();
calcTime += exResult.getCalculationTime();
execTime += exResult.getExecutionTime();
}
}
double effectiveTime = (calcTime/execTime) * overallTime;
return CalculationSupport.getFFT(cycles, effectiveTime);
}
}