#include "mpitest.h"
#include <stdlib.h>
#include <stdio.h>
+#include "mpicolltest.h"
/*
This program tests MPI_Alltoallw by having processor i send different
Because there are separate send and receive types to alltoallw,
there need to be tests to rearrange data on the fly. Not done yet.
-
+
The first test sends i items to processor i from all processors.
Currently, the test uses only MPI_INT; this is adequate for testing systems
that use point-to-point operations
*/
-int main( int argc, char **argv )
+int main(int argc, char **argv)
{
MPI_Comm comm;
- int *sbuf, *rbuf;
- int rank, size, lsize, asize;
- int *sendcounts, *recvcounts, *rdispls, *sdispls;
- int i, j, *p, err;
+ int *sbuf, *rbuf;
+ int rank, size, lsize, asize;
+ int *sendcounts, *recvcounts, *rdispls, *sdispls;
+ int i, j, *p, err;
MPI_Datatype *sendtypes, *recvtypes;
- int leftGroup;
+ int leftGroup;
- MTest_Init( &argc, &argv );
+ MTest_Init(&argc, &argv);
err = 0;
- while (MTestGetIntercomm( &comm, &leftGroup, 4 )) {
- if (comm == MPI_COMM_NULL) continue;
+ while (MTestGetIntercomm(&comm, &leftGroup, 4)) {
+ if (comm == MPI_COMM_NULL)
+ continue;
+
+ /* Create the buffer */
+ MPI_Comm_size(comm, &lsize);
+ MPI_Comm_remote_size(comm, &size);
+ asize = (lsize > size) ? lsize : size;
+ MPI_Comm_rank(comm, &rank);
+ sbuf = (int *) malloc(size * size * sizeof(int));
+ rbuf = (int *) malloc(asize * asize * sizeof(int));
+ if (!sbuf || !rbuf) {
+ fprintf(stderr, "Could not allocated buffers!\n");
+ MPI_Abort(comm, 1);
+ }
+
+ /* Load up the buffers */
+ for (i = 0; i < size * size; i++) {
+ sbuf[i] = i + 100 * rank;
+ rbuf[i] = -i;
+ }
- /* Create the buffer */
- MPI_Comm_size( comm, &lsize );
- MPI_Comm_remote_size( comm, &size );
- asize = (lsize > size) ? lsize : size;
- MPI_Comm_rank( comm, &rank );
- sbuf = (int *)malloc( size * size * sizeof(int) );
- rbuf = (int *)malloc( asize * asize * sizeof(int) );
- if (!sbuf || !rbuf) {
- fprintf( stderr, "Could not allocated buffers!\n" );
- MPI_Abort( comm, 1 );
- exit(1);
- }
-
- /* Load up the buffers */
- for (i=0; i<size*size; i++) {
- sbuf[i] = i + 100*rank;
- rbuf[i] = -i;
- }
+ /* Create and load the arguments to alltoallv */
+ sendcounts = (int *) malloc(size * sizeof(int));
+ recvcounts = (int *) malloc(size * sizeof(int));
+ rdispls = (int *) malloc(size * sizeof(int));
+ sdispls = (int *) malloc(size * sizeof(int));
+ sendtypes = (MPI_Datatype *) malloc(size * sizeof(MPI_Datatype));
+ recvtypes = (MPI_Datatype *) malloc(size * sizeof(MPI_Datatype));
+ if (!sendcounts || !recvcounts || !rdispls || !sdispls || !sendtypes || !recvtypes) {
+ fprintf(stderr, "Could not allocate arg items!\n");
+ MPI_Abort(comm, 1);
+ }
+ /* Note that process 0 sends no data (sendcounts[0] = 0) */
+ for (i = 0; i < size; i++) {
+ sendcounts[i] = i;
+ sdispls[i] = (((i + 1) * (i)) / 2) * sizeof(int);
+ sendtypes[i] = MPI_INT;
+ recvcounts[i] = rank;
+ rdispls[i] = i * rank * sizeof(int);
+ recvtypes[i] = MPI_INT;
+ }
+ MTest_Alltoallw(sbuf, sendcounts, sdispls, sendtypes,
+ rbuf, recvcounts, rdispls, recvtypes, comm);
- /* Create and load the arguments to alltoallv */
- sendcounts = (int *)malloc( size * sizeof(int) );
- recvcounts = (int *)malloc( size * sizeof(int) );
- rdispls = (int *)malloc( size * sizeof(int) );
- sdispls = (int *)malloc( size * sizeof(int) );
- sendtypes = (MPI_Datatype *)malloc( size * sizeof(MPI_Datatype) );
- recvtypes = (MPI_Datatype *)malloc( size * sizeof(MPI_Datatype) );
- if (!sendcounts || !recvcounts || !rdispls || !sdispls || !sendtypes || !recvtypes) {
- fprintf( stderr, "Could not allocate arg items!\n" );
- MPI_Abort( comm, 1 );
- exit(1);
- }
- /* Note that process 0 sends no data (sendcounts[0] = 0) */
- for (i=0; i<size; i++) {
- sendcounts[i] = i;
- sdispls[i] = (((i+1) * (i))/2) * sizeof(int);
- sendtypes[i] = MPI_INT;
- recvcounts[i] = rank;
- rdispls[i] = i * rank * sizeof(int);
- recvtypes[i] = MPI_INT;
- }
- MPI_Alltoallw( sbuf, sendcounts, sdispls, sendtypes,
- rbuf, recvcounts, rdispls, recvtypes, comm );
-
- /* Check rbuf */
- for (i=0; i<size; i++) {
- p = rbuf + rdispls[i]/sizeof(int);
- for (j=0; j<rank; j++) {
- if (p[j] != i * 100 + (rank*(rank+1))/2 + j) {
- fprintf( stderr, "[%d] got %d expected %d for %dth\n",
- rank, p[j],(i*(i+1))/2 + j, j );
- err++;
- }
- }
- }
+ /* Check rbuf */
+ for (i = 0; i < size; i++) {
+ p = rbuf + rdispls[i] / sizeof(int);
+ for (j = 0; j < rank; j++) {
+ if (p[j] != i * 100 + (rank * (rank + 1)) / 2 + j) {
+ fprintf(stderr, "[%d] got %d expected %d for %dth\n",
+ rank, p[j], (i * (i + 1)) / 2 + j, j);
+ err++;
+ }
+ }
+ }
- free(sendtypes);
- free(recvtypes);
- free( sdispls );
- free( rdispls );
- free( recvcounts );
- free( sendcounts );
- free( rbuf );
- free( sbuf );
- MTestFreeComm( &comm );
+ free(sendtypes);
+ free(recvtypes);
+ free(sdispls);
+ free(rdispls);
+ free(recvcounts);
+ free(sendcounts);
+ free(rbuf);
+ free(sbuf);
+ MTestFreeComm(&comm);
}
- MTest_Finalize( err );
+ MTest_Finalize(err);
MPI_Finalize();
return 0;
}
