+++ /dev/null
-/* A few tests for the maxmin library */
-
-/* Copyright (c) 2007-2020. 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 "simgrid/s4u/Engine.hpp"
-#include "src/kernel/lmm/maxmin.hpp"
-#include "src/surf/surf_interface.hpp"
-#include "xbt/log.h"
-#include "xbt/module.h"
-#include "xbt/sysdep.h"
-#include <algorithm>
-#include <array>
-#include <cmath>
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(surf_test, "Messages specific for surf example");
-
-namespace lmm = simgrid::kernel::lmm;
-
-#define PRINT_VAR(var) XBT_DEBUG(_XBT_STRINGIFY(var) " = %g", (var)->get_value())
-#define SHOW_EXPR(expr) XBT_DEBUG(_XBT_STRINGIFY(expr) " = %g", (expr))
-
-/* ______ */
-/* ==l1== L2 ==L3== */
-/* ------ */
-
-static void test1()
-{
- double a = 1.0;
- double b = 10.0;
-
- lmm::System Sys(false);
- lmm::Constraint* L1 = Sys.constraint_new(nullptr, a);
- lmm::Constraint* L2 = Sys.constraint_new(nullptr, b);
- lmm::Constraint* L3 = Sys.constraint_new(nullptr, a);
-
- lmm::Variable* R_1_2_3 = Sys.variable_new(nullptr, 1.0, -1.0, 3);
- lmm::Variable* R_1 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
- lmm::Variable* R_2 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
- lmm::Variable* R_3 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
-
- Sys.update_variable_penalty(R_1_2_3, 1.0);
- Sys.update_variable_penalty(R_1, 1.0);
- Sys.update_variable_penalty(R_2, 1.0);
- Sys.update_variable_penalty(R_3, 1.0);
-
- Sys.expand(L1, R_1_2_3, 1.0);
- Sys.expand(L2, R_1_2_3, 1.0);
- Sys.expand(L3, R_1_2_3, 1.0);
-
- Sys.expand(L1, R_1, 1.0);
- Sys.expand(L2, R_2, 1.0);
- Sys.expand(L3, R_3, 1.0);
-
- Sys.solve();
-
- PRINT_VAR(R_1_2_3);
- PRINT_VAR(R_1);
- PRINT_VAR(R_2);
- PRINT_VAR(R_3);
-
- Sys.variable_free(R_1_2_3);
- Sys.variable_free(R_1);
- Sys.variable_free(R_2);
- Sys.variable_free(R_3);
-}
-
-static void test2()
-{
- lmm::System Sys(false);
-
- lmm::Constraint* CPU1 = Sys.constraint_new(nullptr, 200.0);
- lmm::Constraint* CPU2 = Sys.constraint_new(nullptr, 100.0);
-
- lmm::Variable* T1 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
- lmm::Variable* T2 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
-
- Sys.update_variable_penalty(T1, 1.0);
- Sys.update_variable_penalty(T2, 1.0);
-
- Sys.expand(CPU1, T1, 1.0);
- Sys.expand(CPU2, T2, 1.0);
-
- Sys.solve();
-
- PRINT_VAR(T1);
- PRINT_VAR(T2);
-
- Sys.variable_free(T1);
- Sys.variable_free(T2);
-}
-
-static void test3()
-{
- constexpr int flows = 11;
- constexpr int links = 10;
-
- std::array<std::array<double, flows + 5>, links + 5> A;
- /* array to add the constraints of fictitious variables */
- std::array<double, 15> B{{10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1}};
-
- for (int i = 0; i < links + 5; i++) {
- for (int j = 0; j < flows + 5; j++) {
- A[i][j] = 0.0;
- if (i >= links || j >= flows) {
- A[i][j] = 0.0;
- }
- }
- }
-
- /*matrix that store the constraints/topology */
- A[0][1] = A[0][7] = 1.0;
- A[1][1] = A[1][7] = A[1][8] = 1.0;
- A[2][1] = A[2][8] = 1.0;
- A[3][8] = 1.0;
- A[4][0] = A[4][3] = A[4][9] = 1.0;
- A[5][0] = A[5][3] = A[5][4] = A[5][9] = 1.0;
- A[6][0] = A[6][4] = A[6][9] = A[6][10] = 1.0;
- A[7][2] = A[7][4] = A[7][6] = A[7][9] = A[7][10] = 1.0;
- A[8][2] = A[8][10] = 1.0;
- A[9][5] = A[9][6] = A[9][9] = 1.0;
- A[10][11] = 1.0;
- A[11][12] = 1.0;
- A[12][13] = 1.0;
- A[13][14] = 1.0;
- A[14][15] = 1.0;
-
- lmm::System Sys(false);
-
- /* Creates the constraints */
- std::array<lmm::Constraint*, 15> tmp_cnst;
- for (int i = 0; i < 15; i++)
- tmp_cnst[i] = Sys.constraint_new(nullptr, B[i]);
-
- /* Creates the variables */
- std::array<lmm::Variable*, 16> tmp_var;
- for (int j = 0; j < 16; j++) {
- tmp_var[j] = Sys.variable_new(nullptr, 1.0, -1.0, 15);
- Sys.update_variable_penalty(tmp_var[j], 1.0);
- }
-
- /* Link constraints and variables */
- for (int i = 0; i < 15; i++)
- for (int j = 0; j < 16; j++)
- if (A[i][j] != 0.0)
- Sys.expand(tmp_cnst[i], tmp_var[j], 1.0);
-
- Sys.solve();
-
- for (int j = 0; j < 16; j++)
- PRINT_VAR(tmp_var[j]);
-
- for (int j = 0; j < 16; j++)
- Sys.variable_free(tmp_var[j]);
-}
-
-int main(int argc, char** argv)
-{
- simgrid::s4u::Engine e(&argc, argv);
- XBT_INFO("***** Test 1");
- test1();
-
- XBT_INFO("***** Test 2");
- test2();
-
- XBT_INFO("***** Test 3");
- test3();
-
- return 0;
-}