static int parse_args(int argc, char **argv);
-int main( int argc, char *argv[] )
+int main(int argc, char *argv[])
{
int i, j, errs = 0;
int rank, size;
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size < 2) {
- if (verbose) fprintf(stderr, "comm size must be > 1\n");
- errs++;
- goto fn_exit;
+ if (verbose)
+ fprintf(stderr, "comm size must be > 1\n");
+ errs++;
+ goto fn_exit;
}
buf = malloc(64 * 129);
if (buf == NULL) {
- if (verbose) fprintf(stderr, "error allocating buffer\n");
- errs++;
- goto fn_exit;
+ if (verbose)
+ fprintf(stderr, "error allocating buffer\n");
+ errs++;
+ goto fn_exit;
}
for (i = 8; i < 64; i += 4) {
- MPI_Type_vector(i, 128, 129, MPI_CHAR, &newtype);
-
- MPI_Type_commit(&newtype);
- memset(buf, 0, 64*129);
-
- if (rank == 0) {
- /* init buffer */
- for (j=0; j < i; j++) {
- int k;
- for (k=0; k < 129; k++) {
- buf[129*j + k] = (char) j;
- }
- }
-
- /* send */
- MPI_Send(buf, 1, newtype, 1, i, MPI_COMM_WORLD);
- }
- else if (rank == 1) {
- /* recv */
- MPI_Recv(buf, 1, newtype, 0, i, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
-
- /* check buffer */
- for (j=0; j < i; j++) {
- int k;
- for (k=0; k < 129; k++) {
- if (k < 128 && buf[129*j + k] != (char) j) {
- if (verbose) fprintf(stderr,
- "(i=%d, pos=%d) should be %d but is %d\n",
- i, 129*j + k, j, (int) buf[129*j + k]);
- errs++;
- }
- else if (k == 128 && buf[129*j + k] != (char) 0) {
- if (verbose) fprintf(stderr,
- "(i=%d, pos=%d) should be %d but is %d\n",
- i, 129*j + k, 0, (int) buf[129*j + k]);
- errs++;
- }
- }
- }
- }
-
- MPI_Type_free(&newtype);
+ MPI_Type_vector(i, 128, 129, MPI_CHAR, &newtype);
+
+ MPI_Type_commit(&newtype);
+ memset(buf, 0, 64 * 129);
+
+ if (rank == 0) {
+ /* init buffer */
+ for (j = 0; j < i; j++) {
+ int k;
+ for (k = 0; k < 129; k++) {
+ buf[129 * j + k] = (char) j;
+ }
+ }
+
+ /* send */
+ MPI_Send(buf, 1, newtype, 1, i, MPI_COMM_WORLD);
+ }
+ else if (rank == 1) {
+ /* recv */
+ MPI_Recv(buf, 1, newtype, 0, i, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
+
+ /* check buffer */
+ for (j = 0; j < i; j++) {
+ int k;
+ for (k = 0; k < 129; k++) {
+ if (k < 128 && buf[129 * j + k] != (char) j) {
+ if (verbose)
+ fprintf(stderr,
+ "(i=%d, pos=%d) should be %d but is %d\n",
+ i, 129 * j + k, j, (int) buf[129 * j + k]);
+ errs++;
+ }
+ else if (k == 128 && buf[129 * j + k] != (char) 0) {
+ if (verbose)
+ fprintf(stderr,
+ "(i=%d, pos=%d) should be %d but is %d\n",
+ i, 129 * j + k, 0, (int) buf[129 * j + k]);
+ errs++;
+ }
+ }
+ }
+ }
+
+ MPI_Type_free(&newtype);
}
if (rank == 0) {
- int recv_errs = 0;
-
- MPI_Recv(&recv_errs, 1, MPI_INT, 1, 0, MPI_COMM_WORLD,
- MPI_STATUS_IGNORE);
- if (recv_errs) {
- if (verbose) fprintf(stderr, "%d errors reported from receiver\n",
- recv_errs);
- errs += recv_errs;
- }
+ int recv_errs = 0;
+
+ MPI_Recv(&recv_errs, 1, MPI_INT, 1, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
+ if (recv_errs) {
+ if (verbose)
+ fprintf(stderr, "%d errors reported from receiver\n", recv_errs);
+ errs += recv_errs;
+ }
}
else if (rank == 1) {
- MPI_Send(&errs, 1, MPI_INT, 0, 0, MPI_COMM_WORLD);
+ MPI_Send(&errs, 1, MPI_INT, 0, 0, MPI_COMM_WORLD);
}
-
- fn_exit:
+
+ fn_exit:
free(buf);
/* print message and exit */
if (errs) {
- if (rank == 0) fprintf(stderr, "Found %d errors\n", errs);
+ if (rank == 0)
+ fprintf(stderr, "Found %d errors\n", errs);
}
else {
- if (rank == 0) printf(" No Errors\n");
+ if (rank == 0)
+ printf(" No Errors\n");
}
MPI_Finalize();
return 0;
static int parse_args(int argc, char **argv)
{
/*
- int ret;
-
- while ((ret = getopt(argc, argv, "v")) >= 0)
- {
- switch (ret) {
- case 'v':
- verbose = 1;
- break;
- }
- }
- */
+ * 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;
+ verbose = 1;
return 0;
}