#include "xbt/xbt_os_time.h"
#include "xbt/sysdep.h" /* time manipulation for benchmarking */
+#define MYRANDMAX 1000
+
#include <stdlib.h>
#include <stdio.h>
double date;
+unsigned long seedx= 0;
+
+int myrand();
+inline int myrand() {
+ seedx=seedx * 16807 % 2147483647;
+ return seedx%1000;
+}
double float_random(double max);
double float_random(double max)
{
- return ((max * rand()) / (RAND_MAX + 1.0));
+ return ((max * myrand()) / (MYRANDMAX + 1.0));
}
int int_random(int max);
int int_random(int max)
{
- return (int) (((max * 1.0) * rand()) / (RAND_MAX + 1.0));
+ return (int) (((max * 1.0) * myrand()) / (MYRANDMAX + 1.0));
}
-void test(int nb_cnst, int nb_var, int nb_elem);
-void test(int nb_cnst, int nb_var, int nb_elem)
+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);
+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)
{
lmm_system_t Sys = NULL;
lmm_constraint_t *cnst = xbt_new0(lmm_constraint_t, nb_cnst);
lmm_variable_t *var = xbt_new0(lmm_variable_t, nb_var);
int *used = xbt_new0(int, nb_cnst);
- int i, j, k;
+ int i, j, k,l;
+ int concurrency_share;
+ char buf[1000];
+
Sys = lmm_system_new(1);
for (i = 0; i < nb_cnst; i++) {
cnst[i] = lmm_constraint_new(Sys, NULL, float_random(10.0));
+ if(rate_no_limit>float_random(1.0))
+ //Look at what happens when there is no concurrency limit
+ l=-1;
+ else
+ //Badly logarithmically random concurrency limit in [2^pw_base_limit+1,2^pw_base_limit+2^pw_max_limit]
+ l=(1<<pw_base_limit)+(1<<int_random(pw_max_limit));
+
+ lmm_constraint_concurrency_limit_set(cnst[i],l );
}
-
+
for (i = 0; i < nb_var; i++) {
var[i] = lmm_variable_new(Sys, NULL, 1.0, -1.0, nb_elem);
+ //Have a few variables with a concurrency share of two (e.g. cross-traffic in some cases)
+ concurrency_share=1+int_random(max_share);
+ lmm_variable_concurrency_share_set(var[i],concurrency_share);
+
for (j = 0; j < nb_cnst; j++)
used[j] = 0;
for (j = 0; j < nb_elem; j++) {
k = int_random(nb_cnst);
- if (used[k]) {
+ if (used[k]>=concurrency_share) {
j--;
continue;
}
- lmm_expand(Sys, cnst[k], var[i], float_random(1.0));
- used[k] = 1;
+ lmm_expand(Sys, cnst[k], var[i], float_random(1.5));
+ lmm_expand_add(Sys, cnst[k], var[i], float_random(1.5));
+ used[k]++;
}
}
- printf("Starting to solve\n");
+ printf("Starting to solve(%i)\n",myrand()%1000);
date = xbt_os_time() * 1000000;
lmm_solve(Sys);
date = xbt_os_time() * 1000000 - date;
+ if(mode==1){
+ printf("Max concurrency:\n");
+ l=0;
+ buf[0]=0;
+ for (i = 0; i < nb_cnst; i++) {
+ j=lmm_constraint_concurrency_maximum_get(cnst[i]);
+ k=lmm_constraint_concurrency_limit_get(cnst[i]);
+ xbt_assert(k<0 || j<=k);
+ if(j>l)
+ l=j;
+ sprintf(buf+strlen(buf),"(%i):%i/%i ",i,j,k);
+ lmm_constraint_concurrency_maximum_reset(cnst[i]);
+ xbt_assert(!lmm_constraint_concurrency_maximum_get(cnst[i]));
+ if(i%10==9) {
+ printf("%s\n",buf);
+ buf[0]=0;
+ }
+ }
+ printf("\nTotal maximum concurrency is %i\n",l);
+
+ lmm_print(Sys);
+ }
+
for (i = 0; i < nb_var; i++)
lmm_variable_free(Sys, var[i]);
lmm_system_free(Sys);
free(cnst);
free(var);
free(used);
+
}
+int TestClasses [][4]=
+ //Nbcnst Nbvar Baselimit Maxlimit
+ {{ 10 ,10 ,1 ,2 }, //small
+ { 100 ,100 ,3 ,6 }, //medium
+ { 2000,2000 ,5 ,8 }, //big
+ { 20000,20000 ,7 ,10} //huge
+ };
+
int main(int argc, char **argv)
{
- int nb_cnst = 2000;
- int nb_var = 2000;
- int nb_elem = 80;
+ int nb_cnst, nb_var,nb_elem,pw_base_limit,pw_max_limit,max_share;
+ float rate_no_limit=0.2;
+ float acc_date=0,acc_date2=0;
+ int testclass,mode,testcount;
+ int i;
+
+ if(argc<3) {
+ printf("Syntax: <small|medium|big|huge> <count> [test|debug|perf]\n");
+ return -1;
+ }
+
+ //what class?
+ if(!strcmp(argv[1],"small"))
+ testclass=0;
+ else if(!strcmp(argv[1],"medium"))
+ testclass=1;
+ else if(!strcmp(argv[1],"big"))
+ testclass=2;
+ else if(!strcmp(argv[1],"huge"))
+ testclass=3;
+ else {
+ printf("Unknown class \"%s\", aborting!\n",argv[1]);
+ return -2;
+ }
+
+
+ //How many times?
+ testcount=atoi(argv[2]);
+
+ //Show me everything (debug or performance)!
+ mode=0;
+ if(argc>=4 && strcmp(argv[3],"test")==0)
+ mode=1;
+ if(argc>=4 && strcmp(argv[3],"debug")==0)
+ mode=2;
+ if(argc>=4 && strcmp(argv[3],"perf")==0)
+ mode=3;
+
+
+ if(mode==1)
+ xbt_log_control_set("surf/maxmin.threshold:DEBUG surf/maxmin.fmt:\'[%r]: [%c/%p] %m%n\'\
+ surf.threshold:DEBUG surf.fmt:\'[%r]: [%c/%p] %m%n\' ");
+
+ if(mode==2)
+ xbt_log_control_set("surf/maxmin.threshold:DEBUG surf.threshold:DEBUG");
+
+ nb_cnst= TestClasses[testclass][0];
+ nb_var= TestClasses[testclass][1];
+ pw_base_limit= TestClasses[testclass][2];
+ pw_max_limit= TestClasses[testclass][3];
+ max_share=2; //1<<(pw_base_limit/2+1);
+
+ //If you want to test concurrency, you need nb_elem >> 2^pw_base_limit:
+ nb_elem= (1<<pw_base_limit)+(1<<(8*pw_max_limit/10));
+ //Otherwise, just set it to a constant value (and set rate_no_limit to 1.0):
+ //nb_elem=200
+
xbt_init(&argc, argv);
- date = xbt_os_time() * 1000000;
- test(nb_cnst, nb_var, nb_elem);
- printf("One shot execution time for a total of %d constraints, "
- "%d variables with %d active constraint each : %g microsecondes \n",
- nb_cnst, nb_var, nb_elem, date);
+
+ for(i=0;i<testcount;i++){
+ seedx=i+1;
+ printf("Starting %i: (%i)\n",i,myrand()%1000);
+ test(nb_cnst, nb_var, nb_elem, pw_base_limit, pw_max_limit, rate_no_limit,max_share,mode);
+ acc_date+=date;
+ acc_date2+=date*date;
+ }
+
+ float mean_date= acc_date/(float)testcount;
+ float stdev_date= sqrt(acc_date2/(float)testcount-mean_date*mean_date);
+
+ printf("%ix One shot execution time for a total of %d constraints, "
+ "%d variables with %d active constraint each, concurrency in [%i,%i] and max concurrency share %i\n",
+ testcount,nb_cnst, nb_var, nb_elem, (1<<pw_base_limit), (1<<pw_base_limit)+(1<<pw_max_limit), max_share);
+ if(mode==3)
+ printf("Execution time: %g +- %g microseconds \n",mean_date, stdev_date);
return 0;
}
