public class arrloopperf {
public static void main(String[]args) {
  int iters;
  try { iters = Integer.parseInt(args[0]); } catch(Throwable exn) {}
  System.out.println("Running "+iters+" iterations...");
  runtest(iters);
  System.out.flush();
  try { Thread.sleep(1000); } catch (Throwable exn) {}
  System.out.flush();
  System.exit(0);
}
public static byte runtest(int iters) {
  Timer t = new Timer();

  byte [] local larr = new byte[iters-1];
  byte [] garr = broadcast larr from 0;
  garr = new byte[iters-1];
  byte x = 0;

  Ti.barrier();
  for (int i=0;i<larr.length;i++) { x += larr[i]; } /* warm the cache */
  t.reset();
  t.start();
  for (int i=0;i<larr.length;i++) { x += larr[i]; } 
  t.stop();
  System.out.println(Ti.thisProc()+": local java arr seq access: \t" + 
                     1000*t.micros()/iters + " ns per iter  (" +
                     t.secs() + " secs total)");
  Ti.barrier();
  
  for (int i=0;i<garr.length;i++) { x += garr[i]; } /* warm the cache */
  t.reset();
  t.start();
  for (int i=0;i<garr.length;i++) { x += garr[i]; } 
  t.stop();
  System.out.println(Ti.thisProc()+": global java arr seq access: \t" + 
                     1000*t.micros()/iters + " ns per iter  (" +
                     t.secs() + " secs total)");
  Ti.barrier();

  return x;
}
}