Files
LBPM/tests/hello_world.cpp
2020-01-28 08:51:32 -05:00

34 lines
725 B
C++

#include <iostream>
#include "common/MPI.h"
#include "common/Utilities.h"
int main (int argc, char **argv)
{
MPI_Init(&argc,&argv);
Utilities::MPI comm( MPI_COMM_WORLD );
int rank = comm.getRank();
int nprocs = comm.getSize();
for (int i=0; i<nprocs; i++) {
if ( rank==i )
printf("%i of %i: Hello world\n",rank,nprocs);
comm.barrier();
}
// Create a memory leak for valgrind to find
if ( nprocs==1 ) {
double *x = new double[1];
ASSERT(x!=NULL);
}
// set the error code
// Note: the error code should be consistent across all processors
int error = 0;
// Finished
comm.barrier();
MPI_Finalize();
return error;
}