diff options
Diffstat (limited to 'regressions/ck_barrier/validate/barrier_combining.c')
| -rw-r--r-- | regressions/ck_barrier/validate/barrier_combining.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/regressions/ck_barrier/validate/barrier_combining.c b/regressions/ck_barrier/validate/barrier_combining.c new file mode 100644 index 0000000..98fa0cf --- /dev/null +++ b/regressions/ck_barrier/validate/barrier_combining.c @@ -0,0 +1,143 @@ +/* + * Copyright 2011-2015 Samy Al Bahra. + * Copyright 2011 David Joseph. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <errno.h> +#include <inttypes.h> +#include <pthread.h> +#include <math.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <strings.h> +#include <unistd.h> +#include <sys/time.h> + +#include <ck_pr.h> +#include <ck_barrier.h> + +#include "../../common.h" + +#ifndef ITERATE +#define ITERATE 5000000 +#endif + +#ifndef ENTRIES +#define ENTRIES 512 +#endif + +static struct affinity a; +static int nthr; +static int ngroups; +static int counters[ENTRIES]; +static ck_barrier_combining_t barrier; +static int barrier_wait; + +static void * +thread(void *group) +{ + ck_barrier_combining_state_t state = CK_BARRIER_COMBINING_STATE_INITIALIZER; + int j, counter; + int i = 0; + + aff_iterate(&a); + + ck_pr_inc_int(&barrier_wait); + while (ck_pr_load_int(&barrier_wait) != (nthr * ngroups)) + ck_pr_stall(); + + for (j = 0; j < ITERATE; j++) { + i = j++ & (ENTRIES - 1); + ck_pr_inc_int(&counters[i]); + ck_barrier_combining(&barrier, group, &state); + counter = ck_pr_load_int(&counters[i]); + if (counter != nthr * ngroups * (j / ENTRIES + 1)) { + ck_error("FAILED [%d:%d]: %d != %d\n", i, j - 1, counter, nthr * ngroups); + } + } + + return (NULL); +} + +int +main(int argc, char *argv[]) +{ + pthread_t *threads; + ck_barrier_combining_group_t *groupings; + ck_barrier_combining_group_t *init_root; + int i; + + init_root = malloc(sizeof(ck_barrier_combining_group_t)); + if (init_root == NULL) { + ck_error("ERROR: Could not allocate initial barrier structure\n"); + } + ck_barrier_combining_init(&barrier, init_root); + + if (argc < 4) { + ck_error("Usage: correct <total groups> <threads per group> <affinity delta>\n"); + } + + ngroups = atoi(argv[1]); + if (ngroups <= 0) { + ck_error("ERROR: Number of groups must be greater than 0\n"); + } + + nthr = atoi(argv[2]); + if (nthr <= 0) { + ck_error("ERROR: Number of threads must be greater than 0\n"); + } + + groupings = malloc(sizeof(ck_barrier_combining_group_t) * ngroups); + if (groupings == NULL) { + ck_error("Could not allocate thread barrier grouping structures\n"); + } + + threads = malloc(sizeof(pthread_t) * nthr * ngroups); + if (threads == NULL) { + ck_error("ERROR: Could not allocate thread structures\n"); + } + + a.delta = atoi(argv[3]); + + for (i = 0; i < ngroups; i++) + ck_barrier_combining_group_init(&barrier, groupings + i, nthr); + + fprintf(stderr, "Creating threads (barrier)..."); + for (i = 0; i < (nthr * ngroups); i++) { + if (pthread_create(&threads[i], NULL, thread, groupings + (i % ngroups))) { + ck_error("ERROR: Could not create thread %d\n", i); + } + } + fprintf(stderr, "done\n"); + + fprintf(stderr, "Waiting for threads to finish correctness regression..."); + for (i = 0; i < (nthr * ngroups); i++) + pthread_join(threads[i], NULL); + fprintf(stderr, "done (passed)\n"); + + return (0); +} + |