breakanysrc.java

MPI for java for Distributed Programming

package mpi.pt2pt;

import mpi.*;
import java.util.Arrays;

public class BreakANYSRC {
	
  public BreakANYSRC () {
  }
  
  public BreakANYSRC (String args[]) throws Exception{

      MPI.Init(args);
      int me = MPI.COMM_WORLD.Rank();
      int DATA_SIZE = 10 ;
      int intArray [] = new int[DATA_SIZE];
      int intReadArray [] = new int[DATA_SIZE];

      for(int i=0 ; i<DATA_SIZE ; i++) {
        intArray [i] = i ;
	intReadArray [i] = 0;
      }
		
      if(me == 0) {			
	 
        /* test #1 */ 	      
        System.out.println(" sending ");	      
        Request req = MPI.COMM_WORLD.Isend (intArray,0,DATA_SIZE,MPI.INT,0,1);
        System.out.println(" receiving");	      
        MPI.COMM_WORLD.Recv (intReadArray,0,DATA_SIZE,MPI.INT,
			0 ,1);
        System.out.println(" received it ..");	      
	req.Wait () ;
        System.out.println(" called wait for send");	      
	
        if(Arrays.equals(intArray,intReadArray) ) {
	  System.out.println("test #1 passed");
	}
	else 
	{
          System.out.println("test #1 failed");
	}

	/* test #2 */
	for(int j=0 ; j<DATA_SIZE ; j++) { 
          intReadArray[j] = 0;
	}

        req = MPI.COMM_WORLD.Irecv (intReadArray,0,DATA_SIZE,MPI.INT,
			0,1);
        MPI.COMM_WORLD.Send (intArray,0,DATA_SIZE,MPI.INT,0,1);
	req.Wait() ;
	
        if(Arrays.equals(intArray,intReadArray) ) {
	  System.out.println("test #2 passed");
	}
	else 
	{
	  System.out.println("test #2 failed");
	}
	
	/* test #3 */
	for(int j=0 ; j<DATA_SIZE ; j++) { 
          intReadArray[j] = 0;
	}
        System.out.println(" calling recv ");
        req = MPI.COMM_WORLD.Irecv (intReadArray,0,DATA_SIZE,MPI.INT,
			MPI.ANY_SOURCE ,1);
        System.out.println(" calling send");
        MPI.COMM_WORLD.Send (intArray,0,DATA_SIZE,MPI.INT,0,1);
        System.out.println(" sent ");
	req.Wait() ;
        System.out.println(" received ");
	
        if(Arrays.equals(intArray,intReadArray) ) {
	  System.out.println("test #3 passed");
	}
	else 
	{
	  System.out.println("test #3 passed");
	}

	System.out.println(" BreakANYSRC TEST COMPLETED ");

      }
      
      MPI.COMM_WORLD.Barrier();
      MPI.Finalize();
      System.out.println(" BreakANYSRC TEST COMPLETED "+me);
  }
    
}