X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/f4895c3c3d812abc5ae8cce1d75580f7ed4bbf4f..c65262b0c284780b8499ffe9a55cd3cc2ca4a4a6:/teshsuite/surf/maxmin_bench/maxmin_bench.c

diff --git a/teshsuite/surf/maxmin_bench/maxmin_bench.c b/teshsuite/surf/maxmin_bench/maxmin_bench.c
index 8e7d2b0fad..cc1698f067 100644
--- a/teshsuite/surf/maxmin_bench/maxmin_bench.c
+++ b/teshsuite/surf/maxmin_bench/maxmin_bench.c
@@ -1,73 +1,109 @@
 /* A crash few tests for the maxmin library                                 */
 
-/* Copyright (c) 2004-2014. The SimGrid Team.
+/* 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. */
 
-#ifdef __BORLANDC__
-#pragma hdrstop
-#endif
-
-
 #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;
 
-double float_random(double max);
-double float_random(double max)
+static int myrand(void) {
+  seedx=seedx * 16807 % 2147483647;
+  return (int32_t) seedx%1000;
+}
+
+static 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)
+static int int_random(int max)
 {
-  return (int) (((max * 1.0) * rand()) / (RAND_MAX + 1.0));
+  return (int32_t) (((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)
+static 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;
 
   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==2){
+    printf("Max concurrency:\n");
+    l=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;
+      printf("(%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("\n");
+    }
+    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);
@@ -76,21 +112,89 @@ void test(int nb_cnst, int nb_var, int nb_elem)
   free(used);
 }
 
-#ifdef __BORLANDC__
-#pragma argsused
-#endif
-
+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) {
+    fprintf(stderr, "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 {
+    fprintf(stderr, "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;
+    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;
 }