3 /* A crash few tests for the maxmin library */
5 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #include "xbt/xbt_portability.h"
13 #include "surf/maxmin.h"
14 #include "xbt/xbt_portability.h"
15 #include "xbt/sysdep.h" /* time manipulation for benchmarking */
19 double float_random(double max);
20 double float_random(double max)
22 return ((max * rand()) / (RAND_MAX + 1.0));
25 int int_random(int max);
26 int int_random(int max)
28 return (int) (((max * 1.0) * rand()) / (RAND_MAX + 1.0));
31 void test(int nb_cnst, int nb_var, int nb_elem);
32 void test(int nb_cnst, int nb_var, int nb_elem)
34 lmm_system_t Sys = NULL;
35 lmm_constraint_t *cnst = calloc(nb_cnst, sizeof(lmm_constraint_t));
36 lmm_variable_t *var = calloc(nb_var, sizeof(lmm_variable_t));
37 int *used = calloc(nb_cnst, sizeof(int));
40 Sys = lmm_system_new();
42 for (i = 0; i < nb_cnst; i++) {
43 cnst[i] = lmm_constraint_new(Sys, NULL, float_random(10.0));
46 for (i = 0; i < nb_var; i++) {
47 var[i] = lmm_variable_new(Sys, NULL, 1.0, -1.0, nb_elem);
48 for (j = 0; j < nb_cnst; j++)
50 for (j = 0; j < nb_elem; j++) {
51 k = int_random(nb_cnst);
56 lmm_expand(Sys, cnst[k], var[i], float_random(1.0));
61 printf("Starting to solve\n");
62 date = xbt_os_time() * 1000000;
64 date = xbt_os_time() * 1000000 - date;
73 int main(int argc, char **argv)
78 date = xbt_os_time() * 1000000;
79 test(nb_cnst, nb_var, nb_elem);
80 printf("One shot execution time for a total of %d constraints, "
81 "%d variables with %d active constraint each : %g microsecondes \n",
82 nb_cnst, nb_var, nb_elem, date);