+++ /dev/null
-/* A few crash tests for the maxmin library */
-
-/* Copyright (c) 2004-2022. 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 "src/kernel/lmm/maxmin.hpp"
-#include "simgrid/s4u/Engine.hpp"
-#include "xbt/module.h"
-#include "xbt/random.hpp"
-#include "xbt/sysdep.h" /* time manipulation for benchmarking */
-#include "xbt/xbt_os_time.h"
-
-#include <array>
-#include <cstdint>
-#include <cstdio>
-#include <cstdlib>
-
-static double test(int nb_cnst, int nb_var, int nb_elem, unsigned int pw_base_limit, unsigned int pw_max_limit,
- double rate_no_limit, int max_share, int mode)
-{
- std::vector<simgrid::kernel::lmm::Constraint*> constraints(nb_cnst);
- std::vector<simgrid::kernel::lmm::Variable*> variables(nb_var);
-
- /* We cannot activate the selective update as we pass nullptr as an Action when creating the variables */
- simgrid::kernel::lmm::MaxMin Sys(false);
-
- for (auto& cnst : constraints) {
- cnst = Sys.constraint_new(nullptr, simgrid::xbt::random::uniform_real(0.0, 10.0));
- int l;
- if (rate_no_limit > simgrid::xbt::random::uniform_real(0.0, 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 << simgrid::xbt::random::uniform_int(0, pw_max_limit - 1));
- }
- cnst->set_concurrency_limit(l);
- }
-
- for (auto& var : variables) {
- var = Sys.variable_new(nullptr, 1.0, -1.0, nb_elem);
- //Have a few variables with a concurrency share of two (e.g. cross-traffic in some cases)
- short concurrency_share = 1 + static_cast<short>(simgrid::xbt::random::uniform_int(0, max_share - 1));
-
- std::vector<int> used(nb_cnst, 0);
- for (int j = 0; j < nb_elem; j++) {
- int k;
- do {
- k = simgrid::xbt::random::uniform_int(0, nb_cnst - 1);
- } while (used[k] >= concurrency_share);
- Sys.expand(constraints[k], var, simgrid::xbt::random::uniform_real(0.0, 1.5));
- Sys.expand(constraints[k], var, simgrid::xbt::random::uniform_real(0.0, 1.5));
- used[k]++;
- }
- }
-
- fprintf(stderr, "Starting to solve(%i)\n", simgrid::xbt::random::uniform_int(0, 999));
- double date = xbt_os_time();
- Sys.solve();
- date = (xbt_os_time() - date) * 1e6;
-
- if(mode==2){
- fprintf(stderr,"Max concurrency:\n");
- int l=0;
- for (int i = 0; i < nb_cnst; i++) {
- int j = constraints[i]->get_concurrency_maximum();
- int k = constraints[i]->get_concurrency_limit();
- xbt_assert(k<0 || j<=k);
- if(j>l)
- l=j;
- fprintf(stderr,"(%i):%i/%i ",i,j,k);
- constraints[i]->reset_concurrency_maximum();
- xbt_assert(not constraints[i]->get_concurrency_maximum());
- if(i%10==9)
- fprintf(stderr,"\n");
- }
- fprintf(stderr,"\nTotal maximum concurrency is %i\n",l);
-
- Sys.print();
- }
-
- for (auto const& var : variables)
- Sys.variable_free(var);
-
- return date;
-}
-
-constexpr std::array<std::array<unsigned int, 4>, 4> TestClasses{{
- // 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)
-{
- simgrid::s4u::Engine e(&argc, argv);
-
- double rate_no_limit = 0.2;
- double acc_date = 0.0;
- double acc_date2 = 0.0;
- 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("ker_lmm.threshold:DEBUG ker_lmm.fmt:\'[%r]: [%c/%p] %m%n\' "
- "kernel.threshold:DEBUG kernel.fmt:\'[%r]: [%c/%p] %m%n\' ");
-
- if(mode==2)
- xbt_log_control_set("ker_lmm.threshold:DEBUG kernel.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++){
- simgrid::xbt::random::set_mersenne_seed(i + 1);
- fprintf(stderr, "Starting %i: (%i)\n", i, simgrid::xbt::random::uniform_int(0, 999));
- double date = 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;
- }
-
- double mean_date = acc_date / static_cast<double>(testcount);
- double stdev_date = sqrt(acc_date2 / static_cast<double>(testcount) - mean_date * mean_date);
-
- fprintf(stderr, "%ix One shot execution time for a total of %u constraints, "
- "%u variables with %u active constraint each, concurrency in [%i,%i] and max concurrency share %u\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;
-}
