#include <stdio.h>
#include<stdlib.h>
#include "mpi.h"
int main( int argc, char **argv )
{
int rank, value, size;
MPI_Status status;
MPI_Init( &argc, &argv );
MPI_Comm_rank( MPI_COMM_WORLD, &rank );
MPI_Comm_size( MPI_COMM_WORLD, &size );
if (rank == 0)
{
value = 5;
MPI_Send(&value, 1, MPI_INT, rank + 1, 0, MPI_COMM_WORLD );
}
else
{
MPI_Recv(&value, 1, MPI_INT, rank - 1, 0, MPI_COMM_WORLD, &status );
if (rank < size - 1)
MPI_Send( &value, 1, MPI_INT, rank + 1, 0, MPI_COMM_WORLD );
}
printf("Proces %d dostal %d\n", rank
, value
);
MPI_Finalize( );
return 0;
}
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