- int i, rc = 0, do_open = 0, do_link = 0, rank;
- char format[4096], *fmt, *tgt = NULL;
- char filename[4096];
- long start, last, end;
- long begin = 0, count;
-
- rc = MPI_Init(&argc, &argv);
- if (rc != MPI_SUCCESS)
- rprintf(-1, -1, "MPI_Init failed: %d\n", rc);
-
- if (argc < 4 || argc > 5) {
- usage(argv[0]);
- return 1;
- }
-
- if (strcmp(argv[1], "-o") == 0) {
- do_open = 1;
- tgt = NULL;
- } else if (strncmp(argv[1], "-l", 2) == 0 && argv[1][2]) {
- tgt = argv[1] + 2;
- do_link = 1;
- } else if (strcmp(argv[1], "-m") != 0) {
- usage(argv[0]);
- return 1;
- }
-
- if (strlen(argv[2]) > 4080) {
- printf("name too long\n");
- return 1;
- }
-
- rc = MPI_Comm_rank(MPI_COMM_WORLD, &rank);
- if (rc != MPI_SUCCESS)
- rprintf(-1, -1, "MPI_Comm_rank failed: %d\n", rc);
-
- rc = MPI_Barrier(MPI_COMM_WORLD);
- if (rc != MPI_SUCCESS)
- rprintf(rank, -1, "prep MPI_Barrier failed: %d\n", rc);
-
- start = last = time(0);
-
- if (argc == 4) {
- end = strtol(argv[3], NULL, 0);
- } else {
- begin = strtol(argv[3], NULL, 0);
- end = strtol(argv[4], NULL, 0);
- }
- if (end > 0) {
- count = end;
- end = -1UL >> 1;
- } else {
- end = start - end;
- count = -1UL >> 1;
- }
-
- if (strchr(argv[2], '%'))
- fmt = argv[2];
- else {
- sprintf(format, "%s%%d", argv[2]);
- fmt = format;
- }
- printf("starting at %s", ctime(&start));
- for (i = 0; i < count && time(0) < end; i++, begin++) {
- sprintf(filename, fmt, begin);
- if (do_open) {
- int fd = open(filename, O_CREAT|O_RDWR, 0644);
- if (fd < 0) {
- printf("open(%s) error: %s\n", filename,
- strerror(errno));
- rc = errno;
- break;
- }
- close(fd);
- } else if (do_link) {
- rc = link(tgt, filename);
- if (rc) {
- printf("link(%s, %s) error: %s\n",
- tgt, filename, strerror(errno));
- rc = errno;
- break;
- }
- } else {
- rc = mknod(filename, S_IFREG| 0444, 0);
- if (rc) {
- printf("mknod(%s) error: %s\n",
- filename, strerror(errno));
- rc = errno;
- break;
- }
- }
- if ((i % 10000) == 0) {
- printf(" - created %d (time %ld total %ld last %ld)\n",
- i, time(0), time(0) - start, time(0) - last);
- last = time(0);
- }
- }
- printf("total: %d creates in %ld seconds: %f creates/second\n", i,
- time(0) - start, ((float)i / (time(0) - start)));
- start = time(0);
- printf("finish at %s", ctime(&start));
-
- return rc;
+ int i, rc = 0, do_open = 0, do_link = 0, rank;
+ char format[4096], *fmt, *tgt = NULL;
+ char filename[4096];
+ long start, last, end;
+ long begin = 0, count;
+
+ rc = MPI_Init(&argc, &argv);
+ if (rc != MPI_SUCCESS)
+ rprintf(-1, -1, "MPI_Init failed: %d\n", rc);
+
+ if (argc < 4 || argc > 5) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ if (strcmp(argv[1], "-o") == 0) {
+ do_open = 1;
+ tgt = NULL;
+ } else if (strncmp(argv[1], "-l", 2) == 0 && argv[1][2]) {
+ tgt = argv[1] + 2;
+ do_link = 1;
+ } else if (strcmp(argv[1], "-m") != 0) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ if (strlen(argv[2]) > 4080) {
+ printf("name too long\n");
+ return 1;
+ }
+
+ rc = MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+ if (rc != MPI_SUCCESS)
+ rprintf(-1, -1, "MPI_Comm_rank failed: %d\n", rc);
+
+ rc = MPI_Barrier(MPI_COMM_WORLD);
+ if (rc != MPI_SUCCESS)
+ rprintf(rank, -1, "prep MPI_Barrier failed: %d\n", rc);
+
+ start = last = time(0);
+
+ if (argc == 4) {
+ end = strtol(argv[3], NULL, 0);
+ } else {
+ begin = strtol(argv[3], NULL, 0);
+ end = strtol(argv[4], NULL, 0);
+ }
+ if (end > 0) {
+ count = end;
+ end = -1UL >> 1;
+ } else {
+ end = start - end;
+ count = -1UL >> 1;
+ }
+
+ if (strchr(argv[2], '%')) {
+ fmt = argv[2];
+ } else {
+ sprintf(format, "%s%%d", argv[2]);
+ fmt = format;
+ }
+ printf("starting at %s", ctime(&start));
+ for (i = 0; i < count && time(0) < end; i++, begin++) {
+ sprintf(filename, fmt, begin);
+ if (do_open) {
+ int fd = open(filename, O_CREAT | O_RDWR, 0644);
+
+ if (fd < 0) {
+ printf("open(%s) error: %s\n", filename,
+ strerror(errno));
+ rc = errno;
+ break;
+ }
+ close(fd);
+ } else if (do_link) {
+ rc = link(tgt, filename);
+ if (rc) {
+ printf("link(%s, %s) error: %s\n", tgt,
+ filename, strerror(errno));
+ rc = errno;
+ break;
+ }
+ } else {
+ rc = mknod(filename, S_IFREG | 0444, 0);
+ if (rc) {
+ printf("mknod(%s) error: %s\n", filename,
+ strerror(errno));
+ rc = errno;
+ break;
+ }
+ }
+ if ((i % 10000) == 0) {
+ printf(" - created %d (time %ld total %ld last %ld)\n",
+ i, time(0), time(0) - start, time(0) - last);
+ last = time(0);
+ }
+ }
+ printf("total: %d creates in %ld seconds: %f creates/second\n", i,
+ time(0) - start, ((float)i / (time(0) - start)));
+ start = time(0);
+ printf("finish at %s", ctime(&start));
+
+ return rc;