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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <stdio.h>
#include <stdlib.h>
#include "mpitestconf.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "mpitest.h"
static int verbose = 0;
int short_int_pack_test(void);
/* helper functions */
int parse_args(int argc, char **argv);
static int pack_and_unpack(char *typebuf, int count, MPI_Datatype datatype, int typebufsz);
int main(int argc, char *argv[])
{
int err, errs = 0;
MTest_Init(&argc, &argv);
parse_args(argc, argv);
/* To improve reporting of problems about operations, we
* change the error handler to errors return */
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
err = short_int_pack_test();
errs += err;
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
int short_int_pack_test(void)
{
int i, err, errs = 0;
struct shortint {
short a;
int b;
} sibuf[16];
for (i = 0; i < 16; i++) {
sibuf[i].a = (short) (i * 2);
sibuf[i].b = i * 2 + 1;
}
err = pack_and_unpack((char *) sibuf, 16, MPI_SHORT_INT, sizeof(sibuf));
if (err != 0) {
if (verbose) {
fprintf(stderr, "error packing/unpacking in short_int_pack_test()\n");
}
errs += err;
}
for (i = 0; i < 16; i++) {
if (sibuf[i].a != (short) (i * 2)) {
err++;
if (verbose) {
fprintf(stderr,
"buf[%d] has invalid short (%d); should be %d\n",
i, (int) sibuf[i].a, i * 2);
}
}
if (sibuf[i].b != i * 2 + 1) {
err++;
if (verbose) {
fprintf(stderr,
"buf[%d] has invalid int (%d); should be %d\n",
i, (int) sibuf[i].b, i * 2 + 1);
}
}
}
return errs;
}
/* pack_and_unpack()
*
* Perform packing and unpacking of a buffer for the purposes of checking
* to see if we are processing a type correctly. Zeros the buffer between
* these two operations, so the data described by the type should be in
* place upon return but all other regions of the buffer should be zero.
*
* Parameters:
* typebuf - pointer to buffer described by datatype and count that
* will be packed and then unpacked into
* count, datatype - description of typebuf
* typebufsz - size of typebuf; used specifically to zero the buffer
* between the pack and unpack steps
*
*/
static int pack_and_unpack(char *typebuf, int count, MPI_Datatype datatype, int typebufsz)
{
char *packbuf;
int err, errs = 0, pack_size, type_size, position;
err = MPI_Type_size(datatype, &type_size);
if (err != MPI_SUCCESS) {
errs++;
if (verbose) {
fprintf(stderr, "error in MPI_Type_size call; aborting after %d errors\n", errs);
}
return errs;
}
type_size *= count;
err = MPI_Pack_size(count, datatype, MPI_COMM_SELF, &pack_size);
if (err != MPI_SUCCESS) {
errs++;
if (verbose) {
fprintf(stderr, "error in MPI_Pack_size call; aborting after %d errors\n", errs);
}
return errs;
}
packbuf = (char *) malloc(pack_size);
if (packbuf == NULL) {
errs++;
if (verbose) {
fprintf(stderr, "error in malloc call; aborting after %d errors\n", errs);
}
return errs;
}
position = 0;
err = MPI_Pack(typebuf, count, datatype, packbuf, type_size, &position, MPI_COMM_SELF);
if (position != type_size) {
errs++;
if (verbose)
fprintf(stderr, "position = %d; should be %d (pack)\n", position, type_size);
}
memset(typebuf, 0, typebufsz);
position = 0;
err = MPI_Unpack(packbuf, type_size, &position, typebuf, count, datatype, MPI_COMM_SELF);
if (err != MPI_SUCCESS) {
errs++;
if (verbose) {
fprintf(stderr, "error in MPI_Unpack call; aborting after %d errors\n", errs);
}
return errs;
}
free(packbuf);
if (position != type_size) {
errs++;
if (verbose)
fprintf(stderr, "position = %d; should be %d (unpack)\n", position, type_size);
}
return errs;
}
int parse_args(int argc, char **argv)
{
/*
* int ret;
*
* while ((ret = getopt(argc, argv, "v")) >= 0)
* {
* switch (ret) {
* case 'v':
* verbose = 1;
* break;
* }
* }
*/
if (argc > 1 && strcmp(argv[1], "-v") == 0)
verbose = 1;
return 0;
}
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