////////////////////////////////////////////////////////////////////////////////
// Program:	XTREAM
// 
// This program explores several X10 variations of the original STREAM
// benchmark to examine both the memory performance accessible to an X10
// program as well as the "wizard gap", defined as the difference between
// the performance of the code you'd like to write (or the code produced by
// a naive user) and the code you should write (which achieves "wizardly"
// performance). (Ideally, these would be the same code, but...)
// 
// Author:		J. A. Kuehn, Oak Ridge National Laboratory
// 			(C) Copyright 2007, UT-Battelle, LLC
// 
// License:	Unpublished Source, All Rights Reserved
////////////////////////////////////////////////////////////////////////////////
import java.util.*;
import java.text.*;
import java.io.*;

public class xtream {
	public static void main(String[] args) {
		xVardouble ssd;
		xVarfloat  ssf;
		xVarlong   ssl;
		xVarint    ssi;
		int    N=10000000;
		int    rep=5;
		DecimalFormat F=new DecimalFormat("0.00");
		try {	if (args.length > 0) N   = java.lang.Integer.parseInt(args[0]);
			if (args.length > 1) rep = java.lang.Integer.parseInt(args[1]);
		} catch (NumberFormatException ex) {
			System.out.println("Usage: x10 xtream ARRAYELEMENTS REPETITIONS");
		}
		String s = "     ";
		System.out.println("==============================================================");
		System.out.println("==============================================================");
		System.out.println("==               XTREAM Memory Test Benchmark               ==");
		System.out.println("==============================================================");
		System.out.println("==============================================================");
		System.out.println("                         COPY      SCALE        ADD      TRIAD");
		System.out.println("                       (MB/s)     (MB/s)     (MB/s)     (MB/s)");
		System.out.println("==============================================================");

		System.out.println("64bit Floating Point");
		ssd = new xVar1double(N/100,rep);
		System.out.println( "VARIANT #1 "+s+F.format(ssd.copy())+s+F.format(ssd.scale())+s+F.format(ssd.add())+s+F.format(ssd.triad()) );
		ssd = new xVar2double(N/100,rep);
		System.out.println( "VARIANT #2 "+s+F.format(ssd.copy())+s+F.format(ssd.scale())+s+F.format(ssd.add())+s+F.format(ssd.triad()) );
		ssd = new xVar3double(N,rep);
		System.out.println( "VARIANT #3 "+s+F.format(ssd.copy())+s+F.format(ssd.scale())+s+F.format(ssd.add())+s+F.format(ssd.triad()) );
		ssd = new xVar4double(N,rep);
		System.out.println( "VARIANT #4 "+s+F.format(ssd.copy())+s+F.format(ssd.scale())+s+F.format(ssd.add())+s+F.format(ssd.triad()) );
		ssd = new xVar5double(N,rep);
		System.out.println( "VARIANT #5 "+s+F.format(ssd.copy())+s+F.format(ssd.scale())+s+F.format(ssd.add())+s+F.format(ssd.triad()) );
		ssd = new xVar6double(N,rep);
		System.out.println( "VARIANT #6 "+s+F.format(ssd.copy())+s+F.format(ssd.scale())+s+F.format(ssd.add())+s+F.format(ssd.triad()) );
		ssd = new xVar7double(N,rep);
		System.out.println( "VARIANT #7 "+s+F.format(ssd.copy())+s+F.format(ssd.scale())+s+F.format(ssd.add())+s+F.format(ssd.triad()) );

		System.out.println("==============================================================");

		System.out.println("64bit Fixed Point");
		ssl = new xVar1long(N/100,rep);
		System.out.println( "VARIANT #1 "+s+F.format(ssl.copy())+s+F.format(ssl.scale())+s+F.format(ssl.add())+s+F.format(ssl.triad()) );
		ssl = new xVar2long(N/100,rep);
		System.out.println( "VARIANT #2 "+s+F.format(ssl.copy())+s+F.format(ssl.scale())+s+F.format(ssl.add())+s+F.format(ssl.triad()) );
		ssl = new xVar3long(N,rep);
		System.out.println( "VARIANT #3 "+s+F.format(ssl.copy())+s+F.format(ssl.scale())+s+F.format(ssl.add())+s+F.format(ssl.triad()) );
		ssl = new xVar4long(N,rep);
		System.out.println( "VARIANT #4 "+s+F.format(ssl.copy())+s+F.format(ssl.scale())+s+F.format(ssl.add())+s+F.format(ssl.triad()) );
		ssl = new xVar5long(N,rep);
		System.out.println( "VARIANT #5 "+s+F.format(ssl.copy())+s+F.format(ssl.scale())+s+F.format(ssl.add())+s+F.format(ssl.triad()) );
		ssl = new xVar6long(N,rep);
		System.out.println( "VARIANT #6 "+s+F.format(ssl.copy())+s+F.format(ssl.scale())+s+F.format(ssl.add())+s+F.format(ssl.triad()) );
		ssl = new xVar7long(N,rep);
		System.out.println( "VARIANT #7 "+s+F.format(ssl.copy())+s+F.format(ssl.scale())+s+F.format(ssl.add())+s+F.format(ssl.triad()) );

		System.out.println("==============================================================");

		System.out.println("32bit Floating Point");
		ssf = new xVar1float(N/100,rep);
		System.out.println( "VARIANT #1 "+s+F.format(ssf.copy())+s+F.format(ssf.scale())+s+F.format(ssf.add())+s+F.format(ssf.triad()) );
		ssf = new xVar2float(N/100,rep);
		System.out.println( "VARIANT #2 "+s+F.format(ssf.copy())+s+F.format(ssf.scale())+s+F.format(ssf.add())+s+F.format(ssf.triad()) );
		ssf = new xVar3float(N,rep);
		System.out.println( "VARIANT #3 "+s+F.format(ssf.copy())+s+F.format(ssf.scale())+s+F.format(ssf.add())+s+F.format(ssf.triad()) );
		ssf = new xVar4float(N,rep);
		System.out.println( "VARIANT #4 "+s+F.format(ssf.copy())+s+F.format(ssf.scale())+s+F.format(ssf.add())+s+F.format(ssf.triad()) );
		ssf = new xVar5float(N,rep);
		System.out.println( "VARIANT #5 "+s+F.format(ssf.copy())+s+F.format(ssf.scale())+s+F.format(ssf.add())+s+F.format(ssf.triad()) );
		ssf = new xVar6float(N,rep);
		System.out.println( "VARIANT #6 "+s+F.format(ssf.copy())+s+F.format(ssf.scale())+s+F.format(ssf.add())+s+F.format(ssf.triad()) );
		ssf = new xVar7float(N,rep);
		System.out.println( "VARIANT #7 "+s+F.format(ssf.copy())+s+F.format(ssf.scale())+s+F.format(ssf.add())+s+F.format(ssf.triad()) );

		System.out.println("==============================================================");

		System.out.println("32bit Fixed Point");
		ssi = new xVar1int(N/100,rep);
		System.out.println( "VARIANT #1 "+s+F.format(ssi.copy())+s+F.format(ssi.scale())+s+F.format(ssi.add())+s+F.format(ssi.triad()) );
		ssi = new xVar2int(N/100,rep);
		System.out.println( "VARIANT #2 "+s+F.format(ssi.copy())+s+F.format(ssi.scale())+s+F.format(ssi.add())+s+F.format(ssi.triad()) );
		ssi = new xVar3int(N,rep);
		System.out.println( "VARIANT #3 "+s+F.format(ssi.copy())+s+F.format(ssi.scale())+s+F.format(ssi.add())+s+F.format(ssi.triad()) );
		ssi = new xVar4int(N,rep);
		System.out.println( "VARIANT #4 "+s+F.format(ssi.copy())+s+F.format(ssi.scale())+s+F.format(ssi.add())+s+F.format(ssi.triad()) );
		ssi = new xVar5int(N,rep);
		System.out.println( "VARIANT #5 "+s+F.format(ssi.copy())+s+F.format(ssi.scale())+s+F.format(ssi.add())+s+F.format(ssi.triad()) );
		ssi = new xVar6int(N,rep);
		System.out.println( "VARIANT #6 "+s+F.format(ssi.copy())+s+F.format(ssi.scale())+s+F.format(ssi.add())+s+F.format(ssi.triad()) );
		ssi = new xVar7int(N,rep);
		System.out.println( "VARIANT #7 "+s+F.format(ssi.copy())+s+F.format(ssi.scale())+s+F.format(ssi.add())+s+F.format(ssi.triad()) );

		System.out.println("==============================================================");

	}
}