1 /* A crash few tests for the maxmin library */
3 /* Copyright (c) 2004-2014. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
14 #include "surf/maxmin.h"
15 #include "xbt/module.h"
16 #include "xbt/xbt_os_time.h"
17 #include "xbt/sysdep.h" /* time manipulation for benchmarking */
24 double float_random(double max);
25 double float_random(double max)
27 return ((max * rand()) / (RAND_MAX + 1.0));
30 int int_random(int max);
31 int int_random(int max)
33 return (int) (((max * 1.0) * rand()) / (RAND_MAX + 1.0));
36 void test(int nb_cnst, int nb_var, int nb_elem);
37 void test(int nb_cnst, int nb_var, int nb_elem)
39 lmm_system_t Sys = NULL;
40 lmm_constraint_t *cnst = xbt_new0(lmm_constraint_t, nb_cnst);
41 lmm_variable_t *var = xbt_new0(lmm_variable_t, nb_var);
42 int *used = xbt_new0(int, nb_cnst);
45 Sys = lmm_system_new(1);
47 for (i = 0; i < nb_cnst; i++) {
48 cnst[i] = lmm_constraint_new(Sys, NULL, float_random(10.0));
51 for (i = 0; i < nb_var; i++) {
52 var[i] = lmm_variable_new(Sys, NULL, 1.0, -1.0, nb_elem);
53 for (j = 0; j < nb_cnst; j++)
55 for (j = 0; j < nb_elem; j++) {
56 k = int_random(nb_cnst);
61 lmm_expand(Sys, cnst[k], var[i], float_random(1.0));
66 printf("Starting to solve\n");
67 date = xbt_os_time() * 1000000;
69 date = xbt_os_time() * 1000000 - date;
71 for (i = 0; i < nb_var; i++)
72 lmm_variable_free(Sys, var[i]);
84 int main(int argc, char **argv)
89 xbt_init(&argc, argv);
90 date = xbt_os_time() * 1000000;
91 test(nb_cnst, nb_var, nb_elem);
92 printf("One shot execution time for a total of %d constraints, "
93 "%d variables with %d active constraint each : %g microsecondes \n",
94 nb_cnst, nb_var, nb_elem, date);