1 /* A crash few tests for the maxmin library */
3 /* Copyright (c) 2004-2015. 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. */
9 #include "surf/maxmin.h"
10 #include "xbt/module.h"
11 #include "xbt/xbt_os_time.h"
12 #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, int pw_base_limit, int pw_max_limit, float rate_no_limit, int max_share, int mode);
32 void test(int nb_cnst, int nb_var, int nb_elem, int pw_base_limit, int pw_max_limit, float rate_no_limit, int max_share, int mode)
34 lmm_system_t Sys = NULL;
35 lmm_constraint_t *cnst = xbt_new0(lmm_constraint_t, nb_cnst);
36 lmm_variable_t *var = xbt_new0(lmm_variable_t, nb_var);
37 int *used = xbt_new0(int, nb_cnst);
39 int concurrency_share;
41 Sys = lmm_system_new(1);
43 for (i = 0; i < nb_cnst; i++) {
44 cnst[i] = lmm_constraint_new(Sys, NULL, float_random(10.0));
45 if(rate_no_limit>float_random(1.0))
46 //Look at what happens when there is no concurrency limit
49 //Badly logarithmically random concurrency limit in [2^pw_base_limit+1,2^pw_base_limit+2^pw_max_limit]
50 l=(1<<pw_base_limit)+(1<<int_random(pw_max_limit));
52 lmm_constraint_concurrency_limit_set(cnst[i],l );
55 for (i = 0; i < nb_var; i++) {
56 var[i] = lmm_variable_new(Sys, NULL, 1.0, -1.0, nb_elem);
57 //Have a few variables with a concurrency share of two (e.g. cross-traffic in some cases)
58 concurrency_share=1+int_random(max_share);
59 lmm_variable_concurrency_share_set(var[i],concurrency_share);
61 for (j = 0; j < nb_cnst; j++)
63 for (j = 0; j < nb_elem; j++) {
64 k = int_random(nb_cnst);
65 if (used[k]>=concurrency_share) {
69 lmm_expand(Sys, cnst[k], var[i], float_random(1.5));
70 lmm_expand_add(Sys, cnst[k], var[i], float_random(1.5));
75 printf("Starting to solve(%i,%i,%i)\n",rand()%1000,rand()%1000,rand()%1000);
76 date = xbt_os_time() * 1000000;
78 date = xbt_os_time() * 1000000 - date;
81 printf("Max concurrency:\n");
83 for (i = 0; i < nb_cnst; i++) {
84 j=lmm_constraint_concurrency_maximum_get(cnst[i]);
85 k=lmm_constraint_concurrency_limit_get(cnst[i]);
86 xbt_assert(k<0 || j<=k);
89 printf("(%i):%i/%i ",i,j,k);
90 lmm_constraint_concurrency_maximum_reset(cnst[i]);
91 xbt_assert(!lmm_constraint_concurrency_maximum_get(cnst[i]));
95 printf("\nTotal maximum concurrency is %i\n",l);
100 for (i = 0; i < nb_var; i++)
101 lmm_variable_free(Sys, var[i]);
102 lmm_system_free(Sys);
109 int TestClasses [][4]=
110 //Nbcnst Nbvar Baselimit Maxlimit
111 {{ 10 ,10 ,1 ,2 }, //small
112 { 100 ,100 ,3 ,6 }, //medium
113 { 2000,2000 ,5 ,8 }, //big
114 { 20000,20000 ,7 ,10} //huge
117 int main(int argc, char **argv)
119 int nb_cnst, nb_var,nb_elem,pw_base_limit,pw_max_limit,max_share;
120 float rate_no_limit=0.2;
121 float acc_date=0,acc_date2=0;
122 int testclass,mode,testcount;
126 printf("Syntax: <small|medium|big|huge> <count> [test|debug|perf]\n");
131 if(!strcmp(argv[1],"small"))
133 else if(!strcmp(argv[1],"medium"))
135 else if(!strcmp(argv[1],"big"))
137 else if(!strcmp(argv[1],"huge"))
140 printf("Unknown class \"%s\", aborting!\n",argv[1]);
146 testcount=atoi(argv[2]);
148 //Show me everything (debug or performance)!
150 if(argc>=4 && strcmp(argv[3],"test")==0)
152 if(argc>=4 && strcmp(argv[3],"debug")==0)
154 if(argc>=4 && strcmp(argv[3],"perf")==0)
159 xbt_log_control_set("surf/maxmin.threshold:DEBUG surf/maxmin.fmt:\'[%r]: [%c/%p] %m%n\'\
160 surf.threshold:DEBUG surf.fmt:\'[%r]: [%c/%p] %m%n\' ");
163 xbt_log_control_set("surf/maxmin.threshold:DEBUG surf.threshold:DEBUG");
165 nb_cnst= TestClasses[testclass][0];
166 nb_var= TestClasses[testclass][1];
167 pw_base_limit= TestClasses[testclass][2];
168 pw_max_limit= TestClasses[testclass][3];
169 max_share=2; //1<<(pw_base_limit/2+1);
171 //If you want to test concurrency, you need nb_elem >> 2^pw_base_limit:
172 nb_elem= (1<<pw_base_limit)+(1<<(8*pw_max_limit/10));
173 //Otherwise, just set it to a constant value (and set rate_no_limit to 1.0):
176 xbt_init(&argc, argv);
178 for(i=0;i<testcount;i++){
180 printf("Starting %i: (%i,%i,%i)\n",i,rand()%1000,rand()%1000,rand()%1000);
181 test(nb_cnst, nb_var, nb_elem, pw_base_limit, pw_max_limit, rate_no_limit,max_share,mode);
183 acc_date2+=date*date;
186 float mean_date= acc_date/(float)testcount;
187 float stdev_date= sqrt(acc_date2/(float)testcount-mean_date*mean_date);
189 printf("%ix One shot execution time for a total of %d constraints, "
190 "%d variables with %d active constraint each, concurrency in [%i,%i] and max concurrency share %i\n",
191 testcount,nb_cnst, nb_var, nb_elem, (1<<pw_base_limit), (1<<pw_base_limit)+(1<<pw_max_limit), max_share);
193 printf("Execution time: %g +- %g microseconds \n",mean_date, stdev_date);