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 */
14 #define MYRANDMAX 1000
24 seedx=seedx * 16807 % 2147483647;
25 return static_cast<int32_t>(seedx%1000);
28 static double float_random(double max)
30 return ((max * myrand()) / (MYRANDMAX + 1.0));
33 static unsigned int int_random(int max)
35 return static_cast<uint32_t>(((max * 1.0) * myrand()) / (MYRANDMAX + 1.0));
38 static void test(int nb_cnst, int nb_var, int nb_elem, unsigned int pw_base_limit, unsigned int pw_max_limit,
39 float rate_no_limit, int max_share, int mode)
41 lmm_constraint_t cnst[nb_cnst];
42 lmm_variable_t var[nb_var];
45 lmm_system_t Sys = lmm_system_new(1);
47 for (int i = 0; i < nb_cnst; i++) {
48 cnst[i] = lmm_constraint_new(Sys, NULL, float_random(10.0));
50 if(rate_no_limit>float_random(1.0))
51 //Look at what happens when there is no concurrency limit
54 //Badly logarithmically random concurrency limit in [2^pw_base_limit+1,2^pw_base_limit+2^pw_max_limit]
55 l=(1<<pw_base_limit)+(1<<int_random(pw_max_limit));
57 lmm_constraint_concurrency_limit_set(cnst[i],l );
60 for (int i = 0; i < nb_var; i++) {
61 var[i] = lmm_variable_new(Sys, NULL, 1.0, -1.0, nb_elem);
62 //Have a few variables with a concurrency share of two (e.g. cross-traffic in some cases)
63 int concurrency_share = 1 + int_random(max_share);
64 lmm_variable_concurrency_share_set(var[i],concurrency_share);
66 for (int j = 0; j < nb_cnst; j++)
68 for (int j = 0; j < nb_elem; j++) {
69 int k = int_random(nb_cnst);
70 if (used[k]>=concurrency_share) {
74 lmm_expand(Sys, cnst[k], var[i], float_random(1.5));
75 lmm_expand_add(Sys, cnst[k], var[i], float_random(1.5));
80 fprintf(stderr,"Starting to solve(%i)\n",myrand()%1000);
81 date = xbt_os_time() * 1000000;
83 date = xbt_os_time() * 1000000 - date;
86 fprintf(stderr,"Max concurrency:\n");
88 for (int i = 0; i < nb_cnst; i++) {
89 int j=lmm_constraint_concurrency_maximum_get(cnst[i]);
90 int k=lmm_constraint_concurrency_limit_get(cnst[i]);
91 xbt_assert(k<0 || j<=k);
94 fprintf(stderr,"(%i):%i/%i ",i,j,k);
95 lmm_constraint_concurrency_maximum_reset(cnst[i]);
96 xbt_assert(not lmm_constraint_concurrency_maximum_get(cnst[i]));
100 fprintf(stderr,"\nTotal maximum concurrency is %i\n",l);
105 for (int i = 0; i < nb_var; i++)
106 lmm_variable_free(Sys, var[i]);
107 lmm_system_free(Sys);
110 unsigned int TestClasses [][4]=
111 //Nbcnst Nbvar Baselimit Maxlimit
112 {{ 10 ,10 ,1 ,2 }, //small
113 { 100 ,100 ,3 ,6 }, //medium
114 { 2000,2000 ,5 ,8 }, //big
115 { 20000,20000 ,7 ,10} //huge
118 int main(int argc, char **argv)
120 float rate_no_limit=0.2;
126 fprintf(stderr, "Syntax: <small|medium|big|huge> <count> [test|debug|perf]\n");
131 if (not strcmp(argv[1], "small"))
133 else if (not strcmp(argv[1], "medium"))
135 else if (not strcmp(argv[1], "big"))
137 else if (not strcmp(argv[1], "huge"))
140 fprintf(stderr, "Unknown class \"%s\", aborting!\n",argv[1]);
145 int testcount=atoi(argv[2]);
147 //Show me everything (debug or performance)!
149 if(argc>=4 && strcmp(argv[3],"test")==0)
151 if(argc>=4 && strcmp(argv[3],"debug")==0)
153 if(argc>=4 && strcmp(argv[3],"perf")==0)
157 xbt_log_control_set("surf/maxmin.threshold:DEBUG surf/maxmin.fmt:\'[%r]: [%c/%p] %m%n\'\
158 surf.threshold:DEBUG surf.fmt:\'[%r]: [%c/%p] %m%n\' ");
161 xbt_log_control_set("surf/maxmin.threshold:DEBUG surf.threshold:DEBUG");
163 unsigned int nb_cnst= TestClasses[testclass][0];
164 unsigned int nb_var= TestClasses[testclass][1];
165 unsigned int pw_base_limit= TestClasses[testclass][2];
166 unsigned int pw_max_limit= TestClasses[testclass][3];
167 unsigned int max_share=2; //1<<(pw_base_limit/2+1);
169 //If you want to test concurrency, you need nb_elem >> 2^pw_base_limit:
170 unsigned int nb_elem= (1<<pw_base_limit)+(1<<(8*pw_max_limit/10));
171 //Otherwise, just set it to a constant value (and set rate_no_limit to 1.0):
174 for(int i=0;i<testcount;i++){
176 fprintf(stderr, "Starting %i: (%i)\n",i,myrand()%1000);
177 test(nb_cnst, nb_var, nb_elem, pw_base_limit, pw_max_limit, rate_no_limit,max_share,mode);
179 acc_date2+=date*date;
182 float mean_date= acc_date/(float)testcount;
183 float stdev_date= sqrt(acc_date2/(float)testcount-mean_date*mean_date);
186 "%ix One shot execution time for a total of %d constraints, "
187 "%d variables with %d active constraint each, concurrency in [%i,%i] and max concurrency share %i\n",
188 testcount,nb_cnst, nb_var, nb_elem, (1<<pw_base_limit), (1<<pw_base_limit)+(1<<pw_max_limit), max_share);
190 fprintf(stderr, "Execution time: %g +- %g microseconds \n",mean_date, stdev_date);