1 /* Example of scatter communication, accepting a large amount of processes.
2 * This based the experiment of Fig. 4 in http://hal.inria.fr/hal-00650233/
3 * That experiment is a comparison to the LogOPSim simulator, that takes
4 * GOAL files as an input, thus the file name. But there is no actual link
5 * to the GOAL formalism beside of this.
8 /* Copyright (c) 2011-2015. The SimGrid Team.
9 * All rights reserved. */
11 /* This program is free software; you can redistribute it and/or modify it
12 * under the terms of the license (GNU LGPL) which comes with this package. */
14 #include "simgrid/simdag.h"
16 #include "xbt/xbt_os_time.h"
18 XBT_LOG_NEW_DEFAULT_CATEGORY(goal, "The GOAL loader into SimDag");
22 } s_bcast_task_t,*bcast_task_t;
24 const sg_host_t* ws_list;
27 xbt_dynar_t reclaimed;
29 static void send_one(int from, int to) {
30 //XBT_DEBUG("send_one(%d, %d)",from,to);
32 if (count %100000 == 0)
33 XBT_INFO("Sending task #%d",count);
37 if (!xbt_dynar_is_empty(reclaimed)) {
38 bt = xbt_dynar_pop_as(reclaimed,bcast_task_t);
40 bt = xbt_new(s_bcast_task_t,1);
46 SD_task_t task = SD_task_create_comm_e2e(NULL,bt,424242);
48 XBT_DEBUG("Schedule task between %d and %d",bt->i,bt->j);
49 SD_task_schedulel(task,2,ws_list[bt->i],ws_list[bt->j]);
50 SD_task_watch(task,SD_DONE);
53 int main(int argc, char **argv) {
54 xbt_os_timer_t timer = xbt_os_timer_new();
56 /* initialization of SD */
60 SD_create_environment(argv[1]);
62 SD_create_environment("../../platforms/One_cluster_no_backbone.xml");
65 ws_list = sg_host_list();
66 reclaimed = xbt_dynar_new(sizeof(bcast_task_t),xbt_free_ref);
67 xbt_dynar_t done = NULL;
69 xbt_os_cputimer_start(timer);
70 send_one(0,sg_host_count());
72 if (done != NULL && !xbt_dynar_is_empty(done)) {
76 xbt_dynar_foreach(done, cursor, task) {
77 bcast_task_t bt = SD_task_get_data(task);
79 if (bt->i != bt->j -1)
80 send_one(bt->i,bt->j);
81 if (bt->j != bt->k -1)
82 send_one(bt->j,bt->k);
84 if (xbt_dynar_length(reclaimed)<100) {
85 xbt_dynar_push_as(reclaimed,bcast_task_t,bt);
89 SD_task_destroy(task);
91 xbt_dynar_free(&done);
94 } while(!xbt_dynar_is_empty(done));
95 xbt_os_cputimer_stop(timer);
96 printf("exec_time:%f\n", xbt_os_timer_elapsed(timer) );
98 xbt_dynar_free(&done);
99 xbt_dynar_free(&reclaimed);
102 XBT_INFO("Done. Bailing out");