| /* |
| * 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 counters[ENTRIES]; |
| static int barrier_wait; |
| |
| static void * |
| thread(void *b) |
| { |
| ck_barrier_dissemination_t *barrier = b; |
| ck_barrier_dissemination_state_t state; |
| int j, k, counter; |
| int i = 0; |
| |
| aff_iterate(&a); |
| ck_barrier_dissemination_subscribe(barrier, &state); |
| |
| ck_pr_inc_int(&barrier_wait); |
| while (ck_pr_load_int(&barrier_wait) != nthr) |
| ck_pr_stall(); |
| |
| for (j = 0, k = 0; j < ITERATE; j++, k++) { |
| i = j++ & (ENTRIES - 1); |
| ck_pr_inc_int(&counters[i]); |
| ck_barrier_dissemination(barrier, &state); |
| counter = ck_pr_load_int(&counters[i]); |
| if (counter != nthr * (j / ENTRIES + 1)) { |
| ck_error("FAILED [%d:%d]: %d != %d\n", i, j - 1, counter, nthr); |
| } |
| } |
| |
| return (NULL); |
| } |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| ck_barrier_dissemination_t *barrier; |
| ck_barrier_dissemination_flag_t **barrier_internal; |
| pthread_t *threads; |
| int i, size; |
| |
| if (argc < 3) { |
| ck_error("Usage: correct <number of threads> <affinity delta>\n"); |
| } |
| |
| nthr = atoi(argv[1]); |
| if (nthr <= 0) { |
| ck_error("ERROR: Number of threads must be greater than 0\n"); |
| } |
| |
| threads = malloc(sizeof(pthread_t) * nthr); |
| if (threads == NULL) { |
| ck_error("ERROR: Could not allocate thread structures\n"); |
| } |
| |
| a.delta = atoi(argv[2]); |
| |
| barrier = malloc(sizeof(ck_barrier_dissemination_t) * nthr); |
| if (barrier == NULL) { |
| ck_error("ERROR: Could not allocate barrier structures\n"); |
| } |
| |
| barrier_internal = malloc(sizeof(ck_barrier_dissemination_flag_t *) * nthr); |
| if (barrier_internal == NULL) { |
| ck_error("ERROR: Could not allocate barrier structures\n"); |
| } |
| |
| size = ck_barrier_dissemination_size(nthr); |
| for (i = 0; i < nthr; ++i) { |
| barrier_internal[i] = malloc(sizeof(ck_barrier_dissemination_flag_t) * size); |
| if (barrier_internal[i] == NULL) { |
| ck_error("ERROR: Could not allocate barrier structures\n"); |
| } |
| } |
| ck_barrier_dissemination_init(barrier, barrier_internal, nthr); |
| |
| fprintf(stderr, "Creating threads (barrier)..."); |
| for (i = 0; i < nthr; i++) { |
| if (pthread_create(&threads[i], NULL, thread, barrier)) { |
| 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; i++) |
| pthread_join(threads[i], NULL); |
| fprintf(stderr, "done (passed)\n"); |
| |
| |
| return (0); |
| } |
| |