1 /* A few tests for the maxmin library */
3 /* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "simgrid/s4u/Engine.hpp"
9 #include "src/kernel/lmm/maxmin.hpp"
10 #include "src/surf/surf_interface.hpp"
12 #include "xbt/module.h"
13 #include "xbt/sysdep.h"
18 XBT_LOG_NEW_DEFAULT_CATEGORY(surf_test, "Messages specific for surf example");
20 namespace lmm = simgrid::kernel::lmm;
22 #define PRINT_VAR(var) XBT_DEBUG(_XBT_STRINGIFY(var) " = %g", (var)->get_value())
23 #define SHOW_EXPR(expr) XBT_DEBUG(_XBT_STRINGIFY(expr) " = %g", (expr))
26 /* ==l1== L2 ==L3== */
34 lmm::MaxMin Sys(false);
35 lmm::Constraint* L1 = Sys.constraint_new(nullptr, a);
36 lmm::Constraint* L2 = Sys.constraint_new(nullptr, b);
37 lmm::Constraint* L3 = Sys.constraint_new(nullptr, a);
39 lmm::Variable* R_1_2_3 = Sys.variable_new(nullptr, 1.0, -1.0, 3);
40 lmm::Variable* R_1 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
41 lmm::Variable* R_2 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
42 lmm::Variable* R_3 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
44 Sys.update_variable_penalty(R_1_2_3, 1.0);
45 Sys.update_variable_penalty(R_1, 1.0);
46 Sys.update_variable_penalty(R_2, 1.0);
47 Sys.update_variable_penalty(R_3, 1.0);
49 Sys.expand(L1, R_1_2_3, 1.0);
50 Sys.expand(L2, R_1_2_3, 1.0);
51 Sys.expand(L3, R_1_2_3, 1.0);
53 Sys.expand(L1, R_1, 1.0);
54 Sys.expand(L2, R_2, 1.0);
55 Sys.expand(L3, R_3, 1.0);
64 Sys.variable_free(R_1_2_3);
65 Sys.variable_free(R_1);
66 Sys.variable_free(R_2);
67 Sys.variable_free(R_3);
72 lmm::MaxMin Sys(false);
74 lmm::Constraint* CPU1 = Sys.constraint_new(nullptr, 200.0);
75 lmm::Constraint* CPU2 = Sys.constraint_new(nullptr, 100.0);
77 lmm::Variable* T1 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
78 lmm::Variable* T2 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
80 Sys.update_variable_penalty(T1, 1.0);
81 Sys.update_variable_penalty(T2, 1.0);
83 Sys.expand(CPU1, T1, 1.0);
84 Sys.expand(CPU2, T2, 1.0);
91 Sys.variable_free(T1);
92 Sys.variable_free(T2);
97 constexpr int flows = 11;
98 constexpr int links = 10;
100 std::array<std::array<double, flows + 5>, links + 5> A;
101 /* array to add the constraints of fictitious variables */
102 std::array<double, 15> B{{10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1}};
104 for (int i = 0; i < links + 5; i++) {
105 for (int j = 0; j < flows + 5; j++) {
107 if (i >= links || j >= flows) {
113 /*matrix that store the constraints/topology */
114 A[0][1] = A[0][7] = 1.0;
115 A[1][1] = A[1][7] = A[1][8] = 1.0;
116 A[2][1] = A[2][8] = 1.0;
118 A[4][0] = A[4][3] = A[4][9] = 1.0;
119 A[5][0] = A[5][3] = A[5][4] = A[5][9] = 1.0;
120 A[6][0] = A[6][4] = A[6][9] = A[6][10] = 1.0;
121 A[7][2] = A[7][4] = A[7][6] = A[7][9] = A[7][10] = 1.0;
122 A[8][2] = A[8][10] = 1.0;
123 A[9][5] = A[9][6] = A[9][9] = 1.0;
130 lmm::MaxMin Sys(false);
132 /* Creates the constraints */
133 std::array<lmm::Constraint*, 15> tmp_cnst;
134 for (int i = 0; i < 15; i++)
135 tmp_cnst[i] = Sys.constraint_new(nullptr, B[i]);
137 /* Creates the variables */
138 std::array<lmm::Variable*, 16> tmp_var;
139 for (int j = 0; j < 16; j++) {
140 tmp_var[j] = Sys.variable_new(nullptr, 1.0, -1.0, 15);
141 Sys.update_variable_penalty(tmp_var[j], 1.0);
144 /* Link constraints and variables */
145 for (int i = 0; i < 15; i++)
146 for (int j = 0; j < 16; j++)
148 Sys.expand(tmp_cnst[i], tmp_var[j], 1.0);
152 for (int j = 0; j < 16; j++)
153 PRINT_VAR(tmp_var[j]);
155 for (int j = 0; j < 16; j++)
156 Sys.variable_free(tmp_var[j]);
159 int main(int argc, char** argv)
161 simgrid::s4u::Engine e(&argc, argv);
162 XBT_INFO("***** Test 1");
165 XBT_INFO("***** Test 2");
168 XBT_INFO("***** Test 3");