non_overtaking.java

MPI for java for Distributed Programming

package mpi.pt2pt;

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

public class non_overtaking {
  public non_overtaking() {
  }
  
  public non_overtaking(String args[]) throws Exception{
		
      MPI.Init(args);

      int me = MPI.COMM_WORLD.Rank();

      int intArray [] = new int[100];     
      float floatArray [] = new float[100];  
      
      int intReadArray [] = new int[100];
      float floatReadArray [] = new float[100];
      
      for(int i =0;i < intArray.length;i++) {
        intArray[i] = i+1;
	floatArray[i] = i+11;
	
	intReadArray[i] = 3;
	floatReadArray[i] = i+19;
      }    	
      
      if(MPI.COMM_WORLD.Rank() == 0) {			      
        MPI.COMM_WORLD.Ssend(intArray,0,100,MPI.INT,1,999);
	MPI.COMM_WORLD.Ssend(floatArray,0,100,MPI.FLOAT,1,992);      
      } else if (MPI.COMM_WORLD.Rank() == 1) {	
        //try { Thread.currentThread().sleep(1000); }catch(Exception e){}
	MPI.COMM_WORLD.Recv(intReadArray,0,100,MPI.INT,0,MPI.ANY_TAG);	
	MPI.COMM_WORLD.Recv(floatReadArray,0,100,MPI.FLOAT,0,992);

        if(Arrays.equals(intArray,intReadArray) && 
 	   Arrays.equals(floatArray,floatReadArray) ) {	   
		/*
	   System.out.println("\n#################"+
			      "\n <<<<PASSED>>>> "+
			      "\n################");
			      */
	} else {
	   System.out.println("\n#################"+
	 		      "\n <<<<FAILED>>>> "+
			      "\n################");			
	}
      }
      
      MPI.COMM_WORLD.Barrier();      
      
      if(MPI.COMM_WORLD.Rank() == 0) {
      System.out.println("non_overtaking TEST Completed");
      }
      
      MPI.Finalize();
  
  }
    
    public static void main(String args[]) throws Exception{
    	non_overtaking test = new non_overtaking(args);
    }
}