--- /dev/null
+/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
+/*
+ *
+ * (C) 2003 by Argonne National Laboratory.
+ * See COPYRIGHT in top-level directory.
+ */
+#include "mpi.h"
+#include <stdio.h>
+#include "mpitest.h"
+
+/*
+static char MTEST_Descrip[] = "Use of MPI_BOTTOM in communication";
+*/
+
+int main( int argc, char *argv[] )
+{
+ int errs = 0, err;
+ int rank, size, source, dest, len, ii;
+ MPI_Comm comm;
+ MPI_Status status;
+ MPI_Datatype newtype, oldtype;
+ MPI_Aint disp;
+
+ MTest_Init( &argc, &argv );
+
+ MPI_Get_address( &ii, &disp );
+
+ len = 1;
+ oldtype = MPI_INT;
+ MPI_Type_create_struct( 1, &len, &disp, &oldtype, &newtype );
+ MPI_Type_commit( &newtype );
+
+ comm = MPI_COMM_WORLD;
+
+ MPI_Comm_size( comm, &size );
+ MPI_Comm_rank( comm, &rank );
+
+ if (size < 2) {
+ errs++;
+ fprintf( stderr, "This test requires at least two processes\n" );
+ MPI_Abort( MPI_COMM_WORLD, 1 );
+ }
+ source = 0;
+ dest = 1;
+
+ /* To improve reporting of problems about operations, we
+ change the error handler to errors return */
+ MPI_Comm_set_errhandler( comm, MPI_ERRORS_RETURN );
+
+ if (rank == source) {
+ ii = 2;
+ err = MPI_Send( MPI_BOTTOM, 1, newtype, dest, 0, comm );
+ if (err) {
+ errs++;
+ MTestPrintError( err );
+ printf( "MPI_Send did not return MPI_SUCCESS\n" );
+ }
+ }
+ else if (rank == dest) {
+ ii = -1;
+ err = MPI_Recv( MPI_BOTTOM, 1, newtype, source, 0, comm, &status );
+ if (err) {
+ MTestPrintError( err );
+ errs++;
+ printf( "MPI_Recv did not return MPI_SUCCESS\n" );
+ }
+ if (ii != 2) {
+ errs++;
+ printf( "Received %d but expected %d\n", ii, 2 );
+ }
+ }
+
+ MPI_Comm_set_errhandler( comm, MPI_ERRORS_ARE_FATAL );
+
+ MPI_Type_free( &newtype );
+
+ MTest_Finalize( errs );
+ MPI_Finalize();
+ return 0;
+}