1 /* A crash few tests for the maxmin library */
3 /* Copyright (c) 2004-2017. 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.hpp"
10 #include "simgrid/msg.h"
11 #include "xbt/module.h"
12 #include "xbt/sysdep.h" /* time manipulation for benchmarking */
13 #include "xbt/xbt_os_time.h"
15 #define MYRANDMAX 1000
25 seedx=seedx * 16807 % 2147483647;
26 return static_cast<int32_t>(seedx%1000);
29 static double float_random(double max)
31 return ((max * myrand()) / (MYRANDMAX + 1.0));
34 static unsigned int int_random(int max)
36 return static_cast<uint32_t>(((max * 1.0) * myrand()) / (MYRANDMAX + 1.0));
39 static void test(int nb_cnst, int nb_var, int nb_elem, unsigned int pw_base_limit, unsigned int pw_max_limit,
40 float rate_no_limit, int max_share, int mode)
42 lmm_constraint_t cnst[nb_cnst];
43 lmm_variable_t var[nb_var];
46 lmm_system_t Sys = lmm_system_new(1);
48 for (int i = 0; i < nb_cnst; i++) {
49 cnst[i] = lmm_constraint_new(Sys, NULL, float_random(10.0));
51 if(rate_no_limit>float_random(1.0))
52 //Look at what happens when there is no concurrency limit
55 //Badly logarithmically random concurrency limit in [2^pw_base_limit+1,2^pw_base_limit+2^pw_max_limit]
56 l=(1<<pw_base_limit)+(1<<int_random(pw_max_limit));
58 lmm_constraint_concurrency_limit_set(cnst[i],l );
61 for (int i = 0; i < nb_var; i++) {
62 var[i] = lmm_variable_new(Sys, NULL, 1.0, -1.0, nb_elem);
63 //Have a few variables with a concurrency share of two (e.g. cross-traffic in some cases)
64 int concurrency_share = 1 + int_random(max_share);
65 lmm_variable_concurrency_share_set(var[i],concurrency_share);
67 for (int j = 0; j < nb_cnst; j++)
69 for (int j = 0; j < nb_elem; j++) {
70 int k = int_random(nb_cnst);
71 if (used[k]>=concurrency_share) {
75 lmm_expand(Sys, cnst[k], var[i], float_random(1.5));
76 lmm_expand_add(Sys, cnst[k], var[i], float_random(1.5));
81 fprintf(stderr,"Starting to solve(%i)\n",myrand()%1000);
82 date = xbt_os_time() * 1000000;
84 date = xbt_os_time() * 1000000 - date;
87 fprintf(stderr,"Max concurrency:\n");
89 for (int i = 0; i < nb_cnst; i++) {
90 int j=lmm_constraint_concurrency_maximum_get(cnst[i]);
91 int k=lmm_constraint_concurrency_limit_get(cnst[i]);
92 xbt_assert(k<0 || j<=k);
95 fprintf(stderr,"(%i):%i/%i ",i,j,k);
96 lmm_constraint_concurrency_maximum_reset(cnst[i]);
97 xbt_assert(not lmm_constraint_concurrency_maximum_get(cnst[i]));
101 fprintf(stderr,"\nTotal maximum concurrency is %i\n",l);
106 for (int i = 0; i < nb_var; i++)
107 lmm_variable_free(Sys, var[i]);
108 lmm_system_free(Sys);
111 unsigned int TestClasses [][4]=
112 //Nbcnst Nbvar Baselimit Maxlimit
113 {{ 10 ,10 ,1 ,2 }, //small
114 { 100 ,100 ,3 ,6 }, //medium
115 { 2000,2000 ,5 ,8 }, //big
116 { 20000,20000 ,7 ,10} //huge
119 int main(int argc, char **argv)
121 MSG_init(&argc, argv);
123 float rate_no_limit=0.2;
129 fprintf(stderr, "Syntax: <small|medium|big|huge> <count> [test|debug|perf]\n");
134 if (not strcmp(argv[1], "small"))
136 else if (not strcmp(argv[1], "medium"))
138 else if (not strcmp(argv[1], "big"))
140 else if (not strcmp(argv[1], "huge"))
143 fprintf(stderr, "Unknown class \"%s\", aborting!\n",argv[1]);
148 int testcount=atoi(argv[2]);
150 //Show me everything (debug or performance)!
152 if(argc>=4 && strcmp(argv[3],"test")==0)
154 if(argc>=4 && strcmp(argv[3],"debug")==0)
156 if(argc>=4 && strcmp(argv[3],"perf")==0)
160 xbt_log_control_set("surf/maxmin.threshold:DEBUG surf/maxmin.fmt:\'[%r]: [%c/%p] %m%n\'\
161 surf.threshold:DEBUG surf.fmt:\'[%r]: [%c/%p] %m%n\' ");
164 xbt_log_control_set("surf/maxmin.threshold:DEBUG surf.threshold:DEBUG");
166 unsigned int nb_cnst= TestClasses[testclass][0];
167 unsigned int nb_var= TestClasses[testclass][1];
168 unsigned int pw_base_limit= TestClasses[testclass][2];
169 unsigned int pw_max_limit= TestClasses[testclass][3];
170 unsigned int max_share = 2; // 1<<(pw_base_limit/2+1)
172 //If you want to test concurrency, you need nb_elem >> 2^pw_base_limit:
173 unsigned int nb_elem= (1<<pw_base_limit)+(1<<(8*pw_max_limit/10));
174 //Otherwise, just set it to a constant value (and set rate_no_limit to 1.0):
177 for(int i=0;i<testcount;i++){
179 fprintf(stderr, "Starting %i: (%i)\n",i,myrand()%1000);
180 test(nb_cnst, nb_var, nb_elem, pw_base_limit, pw_max_limit, rate_no_limit,max_share,mode);
182 acc_date2+=date*date;
185 float mean_date= acc_date/(float)testcount;
186 float stdev_date= sqrt(acc_date2/(float)testcount-mean_date*mean_date);
188 fprintf(stderr, "%ix One shot execution time for a total of %u constraints, "
189 "%u variables with %u active constraint each, concurrency in [%i,%i] and max concurrency share %u\n",
190 testcount, nb_cnst, nb_var, nb_elem, (1 << pw_base_limit), (1 << pw_base_limit) + (1 << pw_max_limit),
193 fprintf(stderr, "Execution time: %g +- %g microseconds \n",mean_date, stdev_date);