jasima.shopSim.prioRules.basic.SRPTPerPT Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jasima-main Show documentation

JAva SImulatior for MAnufacturing and logistics - A framework for discrete event simulation and computer experiments with a main focus on modelling and analyzing logistic/manufacturing systems.

There is a newer version: 1.3.0

Show newest version

/*******************************************************************************
 * Copyright (c) 2010-2013 Torsten Hildebrandt and jasima contributors
 *
 * This file is part of jasima, v1.0.
 *
 * jasima is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * jasima is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with jasima.  If not, see .
 *
 * $Id: SRPTPerPT.java 74 2013-01-08 17:31:49Z [email protected] $
 *******************************************************************************/
package jasima.shopSim.prioRules.basic;

import jasima.shopSim.core.PR;
import jasima.shopSim.core.PrioRuleTarget;

/**
 * This class implements the Remaining Processing Time per Imminent Processing
 * Time rule. This is rule 10 in Blackwater et al. (1982)
 * "A state-of-the-art survey of dispatching rules for job shop operations". It
 * seems to perform well especially for the makespan objective.
 * 
 * @author Torsten Hildebrandt, 2011-12-01
 * @version 
 *          "$Id: SRPTPerPT.java 74 2013-01-08 17:31:49Z [email protected] $"
 */
public class SRPTPerPT extends PR {

	@Override
	public double calcPrio(PrioRuleTarget job) {
		return job.remainingProcTime() / job.getCurrentOperation().procTime;
	}

}