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"
11 #include "xbt/sysdep.h"
16 XBT_LOG_NEW_DEFAULT_CATEGORY(test, "Messages specific for this example");
18 namespace lmm = simgrid::kernel::lmm;
20 #define PRINT_VAR(var) XBT_DEBUG(_XBT_STRINGIFY(var) " = %g", (var)->get_value())
21 #define SHOW_EXPR(expr) XBT_DEBUG(_XBT_STRINGIFY(expr) " = %g", (expr))
24 /* ==l1== L2 ==L3== */
32 lmm::MaxMin Sys(false);
33 lmm::Constraint* L1 = Sys.constraint_new(nullptr, a);
34 lmm::Constraint* L2 = Sys.constraint_new(nullptr, b);
35 lmm::Constraint* L3 = Sys.constraint_new(nullptr, a);
37 lmm::Variable* R_1_2_3 = Sys.variable_new(nullptr, 1.0, -1.0, 3);
38 lmm::Variable* R_1 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
39 lmm::Variable* R_2 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
40 lmm::Variable* R_3 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
42 Sys.update_variable_penalty(R_1_2_3, 1.0);
43 Sys.update_variable_penalty(R_1, 1.0);
44 Sys.update_variable_penalty(R_2, 1.0);
45 Sys.update_variable_penalty(R_3, 1.0);
47 Sys.expand(L1, R_1_2_3, 1.0);
48 Sys.expand(L2, R_1_2_3, 1.0);
49 Sys.expand(L3, R_1_2_3, 1.0);
51 Sys.expand(L1, R_1, 1.0);
52 Sys.expand(L2, R_2, 1.0);
53 Sys.expand(L3, R_3, 1.0);
62 Sys.variable_free(R_1_2_3);
63 Sys.variable_free(R_1);
64 Sys.variable_free(R_2);
65 Sys.variable_free(R_3);
70 lmm::MaxMin Sys(false);
72 lmm::Constraint* CPU1 = Sys.constraint_new(nullptr, 200.0);
73 lmm::Constraint* CPU2 = Sys.constraint_new(nullptr, 100.0);
75 lmm::Variable* T1 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
76 lmm::Variable* T2 = Sys.variable_new(nullptr, 1.0, -1.0, 1);
78 Sys.update_variable_penalty(T1, 1.0);
79 Sys.update_variable_penalty(T2, 1.0);
81 Sys.expand(CPU1, T1, 1.0);
82 Sys.expand(CPU2, T2, 1.0);
89 Sys.variable_free(T1);
90 Sys.variable_free(T2);
95 constexpr int flows = 11;
96 constexpr int links = 10;
98 std::array<std::array<double, flows + 5>, links + 5> A;
99 /* array to add the constraints of fictitious variables */
100 std::array<double, 15> B{{10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1}};
102 for (int i = 0; i < links + 5; i++) {
103 for (int j = 0; j < flows + 5; j++) {
105 if (i >= links || j >= flows) {
111 /*matrix that store the constraints/topology */
112 A[0][1] = A[0][7] = 1.0;
113 A[1][1] = A[1][7] = A[1][8] = 1.0;
114 A[2][1] = A[2][8] = 1.0;
116 A[4][0] = A[4][3] = A[4][9] = 1.0;
117 A[5][0] = A[5][3] = A[5][4] = A[5][9] = 1.0;
118 A[6][0] = A[6][4] = A[6][9] = A[6][10] = 1.0;
119 A[7][2] = A[7][4] = A[7][6] = A[7][9] = A[7][10] = 1.0;
120 A[8][2] = A[8][10] = 1.0;
121 A[9][5] = A[9][6] = A[9][9] = 1.0;
128 lmm::MaxMin Sys(false);
130 /* Creates the constraints */
131 std::array<lmm::Constraint*, 15> tmp_cnst;
132 for (int i = 0; i < 15; i++)
133 tmp_cnst[i] = Sys.constraint_new(nullptr, B[i]);
135 /* Creates the variables */
136 std::array<lmm::Variable*, 16> tmp_var;
137 for (int j = 0; j < 16; j++) {
138 tmp_var[j] = Sys.variable_new(nullptr, 1.0, -1.0, 15);
139 Sys.update_variable_penalty(tmp_var[j], 1.0);
142 /* Link constraints and variables */
143 for (int i = 0; i < 15; i++)
144 for (int j = 0; j < 16; j++)
146 Sys.expand(tmp_cnst[i], tmp_var[j], 1.0);
150 for (int j = 0; j < 16; j++)
151 PRINT_VAR(tmp_var[j]);
153 for (int j = 0; j < 16; j++)
154 Sys.variable_free(tmp_var[j]);
157 int main(int argc, char** argv)
159 simgrid::s4u::Engine e(&argc, argv);
160 XBT_INFO("***** Test 1");
163 XBT_INFO("***** Test 2");
166 XBT_INFO("***** Test 3");