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package mpi.threads ;
import mpi.*;
import java.util.Arrays;
public class SimulSend {
int DATA_SIZE=1000000;
public SimulSend() {
}
public SimulSend(String args[]) throws Exception {
MPI.Init(args);
Thread threadA = null ;
Thread threadB = null;
int me = MPI.COMM_WORLD.Rank() ;
int size = MPI.COMM_WORLD.Size() ;
int numOfProcessors = MPI.NUM_OF_PROCESSORS ;
final int intArray [] = new int[DATA_SIZE];
final int intArray2 [] = new int[DATA_SIZE];
final int intReadArray [] = new int[DATA_SIZE];
final int intReadArray2 [] = new int[DATA_SIZE];
for(int i =0 ; i<DATA_SIZE ; i++) {
intArray[i] = (i+1) + 1000 ;
intArray2[i] = (i+1) + 2000 ;
}
if(me == 0) {
Runnable senderThreadA = new Runnable() {
public void run() {
int tag = 1000 ;
for(int j=0 ; j<500 ; j++) {
MPI.COMM_WORLD.Send(intArray,0,DATA_SIZE,MPI.INT,1,tag++);
}
}
};
Runnable senderThreadB = new Runnable() {
public void run() {
int tag = 2000 ;
for(int j=0 ; j<500 ; j++) {
MPI.COMM_WORLD.Send(intArray2,0,DATA_SIZE,MPI.INT,1,tag++);
}
}
};
threadA = new Thread(senderThreadA);
threadB = new Thread(senderThreadB);
threadA.start();
threadB.start();
threadA.join();
threadB.join();
} else if (me == 1) {
Runnable receiverThreadA = new Runnable() {
public void run() {
int tag = 1000 ;
for(int j=0 ; j<500 ; j++) {
for(int k=0 ; k<DATA_SIZE ; k++) {
intReadArray[k] = 0;
}
MPI.COMM_WORLD.Recv(intReadArray,0,DATA_SIZE,MPI.INT,0,tag++);
if(Arrays.equals(intArray, intReadArray)) {
//System.out.println(" Thread A passed ");
}
else {
System.out.println(" Thread A failed ");
}
}
}
};
Runnable receiverThreadB = new Runnable() {
public void run() {
int tag = 2000;
for(int j=0 ; j<500 ; j++) {
for(int k=0 ; k<DATA_SIZE ; k++) {
intReadArray2[k] = 0;
}
MPI.COMM_WORLD.Recv(intReadArray2,0,DATA_SIZE,MPI.INT,0,tag++);
if(Arrays.equals(intArray2, intReadArray2)) {
//System.out.println(" Thread B passed ");
}
else {
System.out.println(" Thread B failed ");
}
}
}
};
threadA = new Thread(receiverThreadA);
threadB = new Thread(receiverThreadB);
threadA.start();
threadB.start();
threadA.join();
threadB.join();
}
MPI.COMM_WORLD.Barrier();
if(MPI.COMM_WORLD.Rank() == 0) {
System.out.println("SimulSend TEST Completed");
}
MPI.Finalize();
}
public static void main(String args[]) throws Exception{
SimulSend test = new SimulSend(args);
}
}
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