import java.util.*;


public class checkmem {
 public static void outputmem(int i) {
  System.out.println(i + "task usedMemory = " + (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()));
 }
 public static final int MB = 1048576;
 public static boolean single foo = false;
 public static void main(String[]args) {
  System.out.println("startup:");
  outputmem(0);
  PrivateRegion r = new PrivateRegion();
  //Stack s = new (r) Stack();
  int sz = 1*MB;
  if (args.length > 0) try { sz = Integer.parseInt(args[0]); } catch(Throwable exn) {}
  int interval = 1*MB/sz;
  if (interval<1)interval=1;
  System.out.println("Running memory grab test with chunk size = " + sz);
  for (int single i=0; ; i++) {
    //s.push(new (r) byte[sz]);
    byte[]a = new (r) byte[sz];
    if (Ti.thisProc() == 0 && i%interval==0) outputmem(i);
    Ti.barrier();
  }
/*
  System.out.println("task totalMemory = " + Runtime.getRuntime().totalMemory());
  System.out.println("task freeMemory = " +  Runtime.getRuntime().freeMemory());
  System.out.println("task usedMemory = " + (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()));
  try{r.delete();} catch(Throwable exn) {}
  System.out.println("task totalMemory = " + Runtime.getRuntime().totalMemory());
  System.out.println("task freeMemory = " +  Runtime.getRuntime().freeMemory());
  System.out.println("task usedMemory = " + (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()));
*/
 }}