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Implementation of linear-chain Conditional Random Fields (CRF) in pure Java

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package com.asher_stern.crf.utilities;

/**
 * A collection of static functions for the JVM runtime.
 * 
 * @author Asher Stern
 * Date: Nov 8, 2014
 *
 */
public class RuntimeUtilities
{
	public static final long MEGA = 1048576;
	
	/**
	 * Returns a string which describes the amount of memory currently used by the JVM heap.
	 * @return a string which describes the amount of memory currently used by the JVM heap.
	 */
	public static String getUsedMemory()
	{
		final Runtime runtime = Runtime.getRuntime();
		return "Used memory: "+String.valueOf((runtime.totalMemory()-runtime.freeMemory())/MEGA)+" MB";
	}

}