ooops.789 0 Newbie Poster

well i am trying to do a program, where the process 0 should start the initialization of sending messages to a random process other than itself, then the random process selected should receive the message and send to another random process. This should happen until the requested number of messages to be sent is done, which is given by the user as input. I see that my program is either sending messages at the max 2 or else even none and giving me the following error

ONE OF THE PROCESSES TERMINATED BADLY: CLEANING UP
APPLICATION TERMINATED WITH THE EXIT STRING: Terminated (signal 15)

Here is my code, lemme know whats the loop hole in it

if(rank==0)
	{
	rnum=rgenerator(rank,size);
	string++;
	MPI_Send(&string, 50, MPI_INT, rnum, rnum, MPI_COMM_WORLD);
	printf("\n process %d sends message to process %d",rank, rnum);
	
	//MPI_Recv(&flag, 100, MPI_INT, MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &status);
	
	}
	
		while(flag!=1)
		{
	
		if(MPI_Recv(&string, 50, MPI_INT, MPI_ANY_SOURCE, rank, MPI_COMM_WORLD, &status)==MPI_SUCCESS)
		{	
		
			printf("\n process %d receives message from process %d count : %d",rank, status.MPI_SOURCE, string);
			rnum=rgenerator(rank,size);
			printf("\n Random num generated is %d",rnum);
			string=string+1;
			MPI_Send(&string, 50, MPI_INT, rnum, rnum, MPI_COMM_WORLD);
			count++;
			
			printf("\n process %d sends message to process %d", rank, rnum);

			//MPI_Bcast(&count, 40, MPI_INT, rank, MPI_COMM_WORLD);
			if(string==n)
			{
				printf("\n\n Messages reached");
				flag=1;
				
			}
		
		}
		else 
			flag=0;
		}

The random generation part is not included, which is working fine

Be a part of the DaniWeb community

We're a friendly, industry-focused community of 1.21 million developers, IT pros, digital marketers, and technology enthusiasts learning and sharing knowledge.