+++ /dev/null
-#include "mpi.h"
-#include <stdlib.h>
-#include <stdio.h>
-#include "test.h"
-
-/* This example sends a vector and receives individual elements */
-
-int main( int argc, char **argv )
-{
- MPI_Datatype vec;
- double *vecin, *vecout, ivalue;
- int root, i, n, stride, err = 0;
- int rank, size;
-
- MPI_Init( &argc, &argv );
-
- MPI_Comm_size( MPI_COMM_WORLD, &size );
- MPI_Comm_rank( MPI_COMM_WORLD, &rank );
-
- n = 12;
- stride = 10;
- vecin = (double *)malloc( n * stride * size * sizeof(double) );
- vecout = (double *)malloc( n * sizeof(double) );
-
- MPI_Type_vector( n, 1, stride, MPI_DOUBLE, &vec );
- MPI_Type_commit( &vec );
-
- for (i=0; i<n*stride*size; i++) vecin[i] = (double)i;
- for (root=0; root<size; root++) {
- for (i=0; i<n; i++) vecout[i] = -1.0;
- MPI_Scatter( vecin, 1, vec, vecout, n, MPI_DOUBLE, root,
- MPI_COMM_WORLD );
- ivalue = rank * ((n-1) * stride + 1);
- for (i=0; i<n; i++) {
- if (vecout[i] != ivalue) {
- printf( "Expected %f but found %f\n",
- ivalue, vecout[i] );
- err++;
- }
- ivalue += stride;
- }
- }
- i = err;
- MPI_Allreduce( &i, &err, 1, MPI_INT, MPI_SUM, MPI_COMM_WORLD );
- if (rank == 0) {
- if (err > 0) printf( "Found %d errors!\n", err );
- else printf( " No Errors\n" );
- }
- MPI_Type_free( &vec );
- MPI_Finalize();
- return 0;
-
-}
-