+++ /dev/null
-/* A crash few tests for the maxmin library */
-
-/* Copyright (c) 2004-2015. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "surf/maxmin.h"
-#include "xbt/module.h"
-#include "xbt/xbt_os_time.h"
-#include "xbt/sysdep.h" /* time manipulation for benchmarking */
-
-#define MYRANDMAX 1000
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-
-double date;
-int64_t seedx = 0;
-
-static int myrand() {
- seedx=seedx * 16807 % 2147483647;
- return static_cast<int32_t>(seedx%1000);
-}
-
-static double float_random(double max)
-{
- return ((max * myrand()) / (MYRANDMAX + 1.0));
-}
-
-static unsigned int int_random(int max)
-{
- return static_cast<uint32_t>(((max * 1.0) * myrand()) / (MYRANDMAX + 1.0));
-}
-
-static void test(int nb_cnst, int nb_var, int nb_elem, unsigned int pw_base_limit, unsigned int pw_max_limit,
- float rate_no_limit, int max_share, int mode)
-{
- lmm_constraint_t cnst[nb_cnst];
- lmm_variable_t var[nb_var];
- int used[nb_cnst];
-
- lmm_system_t Sys = lmm_system_new(1);
-
- for (int i = 0; i < nb_cnst; i++) {
- cnst[i] = lmm_constraint_new(Sys, NULL, float_random(10.0));
- int l;
- 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 (int 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)
- int concurrency_share = 1 + int_random(max_share);
- lmm_variable_concurrency_share_set(var[i],concurrency_share);
-
- for (int j = 0; j < nb_cnst; j++)
- used[j] = 0;
- for (int j = 0; j < nb_elem; j++) {
- int k = int_random(nb_cnst);
- if (used[k]>=concurrency_share) {
- j--;
- continue;
- }
- 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]++;
- }
- }
-
- fprintf(stderr,"Starting to solve(%i)\n",myrand()%1000);
- date = xbt_os_time() * 1000000;
- lmm_solve(Sys);
- date = xbt_os_time() * 1000000 - date;
-
- if(mode==2){
- fprintf(stderr,"Max concurrency:\n");
- int l=0;
- for (int i = 0; i < nb_cnst; i++) {
- int j=lmm_constraint_concurrency_maximum_get(cnst[i]);
- int k=lmm_constraint_concurrency_limit_get(cnst[i]);
- xbt_assert(k<0 || j<=k);
- if(j>l)
- l=j;
- fprintf(stderr,"(%i):%i/%i ",i,j,k);
- lmm_constraint_concurrency_maximum_reset(cnst[i]);
- xbt_assert(not lmm_constraint_concurrency_maximum_get(cnst[i]));
- if(i%10==9)
- fprintf(stderr,"\n");
- }
- fprintf(stderr,"\nTotal maximum concurrency is %i\n",l);
-
- lmm_print(Sys);
- }
-
- for (int i = 0; i < nb_var; i++)
- lmm_variable_free(Sys, var[i]);
- lmm_system_free(Sys);
-}
-
-unsigned 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)
-{
- float rate_no_limit=0.2;
- float acc_date=0;
- float acc_date2=0;
- int testclass;
-
- if(argc<3) {
- fprintf(stderr, "Syntax: <small|medium|big|huge> <count> [test|debug|perf]\n");
- return -1;
- }
-
- //what class?
- if (not strcmp(argv[1], "small"))
- testclass = 0;
- else if (not strcmp(argv[1], "medium"))
- testclass = 1;
- else if (not strcmp(argv[1], "big"))
- testclass = 2;
- else if (not strcmp(argv[1], "huge"))
- testclass = 3;
- else {
- fprintf(stderr, "Unknown class \"%s\", aborting!\n",argv[1]);
- return -2;
- }
-
- //How many times?
- int testcount=atoi(argv[2]);
-
- //Show me everything (debug or performance)!
- int 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");
-
- unsigned int nb_cnst= TestClasses[testclass][0];
- unsigned int nb_var= TestClasses[testclass][1];
- unsigned int pw_base_limit= TestClasses[testclass][2];
- unsigned int pw_max_limit= TestClasses[testclass][3];
- unsigned int max_share=2; //1<<(pw_base_limit/2+1);
-
- //If you want to test concurrency, you need nb_elem >> 2^pw_base_limit:
- unsigned int 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
-
- for(int i=0;i<testcount;i++){
- seedx=i+1;
- fprintf(stderr, "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);
-
- fprintf(stderr,
- "%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)
- fprintf(stderr, "Execution time: %g +- %g microseconds \n",mean_date, stdev_date);
-
- return 0;
-}
