/* A few tests for the maxmin library */
-/* Copyright (c) 2007-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2007-2018. 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 "xbt/sysdep.h"
-#include "surf/maxmin.h"
+#include "simgrid/msg.h"
+#include "src/kernel/lmm/maxmin.hpp"
+#include "src/surf/surf_interface.hpp"
#include "xbt/log.h"
#include "xbt/module.h"
-#include <math.h>
+#include "xbt/sysdep.h"
+#include <algorithm>
+#include <cmath>
XBT_LOG_NEW_DEFAULT_CATEGORY(surf_test, "Messages specific for surf example");
-#define PRINT_VAR(var) XBT_DEBUG(#var " = %g",lmm_variable_getvalue(var));
-#define SHOW_EXPR(expr) XBT_DEBUG(#expr " = %g",expr);
+using namespace simgrid::surf;
+
+#define PRINT_VAR(var) XBT_DEBUG(#var " = %g", (var)->get_value())
+#define SHOW_EXPR(expr) XBT_DEBUG(#expr " = %g",expr)
/* ______ */
/* ==l1== L2 ==L3== */
/* ------ */
-typedef enum {
- MAXMIN,
- LAGRANGE_RENO,
- LAGRANGE_VEGAS
-} method_t;
+enum method_t { MAXMIN, LAGRANGE_RENO, LAGRANGE_VEGAS };
+
+static simgrid::kernel::lmm::System* new_system(method_t method, bool update)
+{
+ switch (method) {
+ case MAXMIN:
+ return simgrid::kernel::lmm::make_new_maxmin_system(update);
+ case LAGRANGE_VEGAS:
+ case LAGRANGE_RENO:
+ return simgrid::kernel::lmm::make_new_lagrange_system(update);
+ default:
+ xbt_die("Invalid method");
+ }
+}
static double dichotomy(double func(double), double min, double max, double min_error)
{
while (overall_error > min_error) {
SHOW_EXPR(overall_error);
- if ((min_func > 0 && max_func > 0) || (min_func < 0 && max_func < 0) || (min_func > 0 && max_func < 0)) {
- abort();
- } //TODO replace by xbt_assert
+ xbt_assert(min_func <= 0 || max_func <= 0);
+ xbt_assert(min_func >= 0 || max_func >= 0);
+ xbt_assert(min_func <= 0 || max_func >= 0);
SHOW_EXPR(min);
SHOW_EXPR(min_func);
SHOW_EXPR(max_func);
double middle = (max + min) / 2.0;
- if ((min == middle) || (max == middle)) {
+ if (fabs(min - middle) < 1e-12 || fabs(max - middle) < 1e-12) {
break;
}
double middle_func = func(middle);
static void test1(method_t method)
{
- lmm_system_t Sys = NULL;
- lmm_constraint_t L1 = NULL;
- lmm_constraint_t L2 = NULL;
- lmm_constraint_t L3 = NULL;
-
- lmm_variable_t R_1_2_3 = NULL;
- lmm_variable_t R_1 = NULL;
- lmm_variable_t R_2 = NULL;
- lmm_variable_t R_3 = NULL;
-
- double a = 1.0, b = 10.0;
+ double a = 1.0;
+ double b = 10.0;
if (method == LAGRANGE_VEGAS)
- lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp, func_vegas_fpi);
+ set_default_protocol_function(simgrid::kernel::lmm::func_vegas_f, simgrid::kernel::lmm::func_vegas_fp,
+ simgrid::kernel::lmm::func_vegas_fpi);
else if (method == LAGRANGE_RENO)
- lmm_set_default_protocol_function(func_reno_f, func_reno_fpi, func_reno_fpi);
+ set_default_protocol_function(simgrid::kernel::lmm::func_reno_f, simgrid::kernel::lmm::func_reno_fp,
+ simgrid::kernel::lmm::func_reno_fpi);
- Sys = lmm_system_new(1);
- L1 = lmm_constraint_new(Sys, (void *) "L1", a);
- L2 = lmm_constraint_new(Sys, (void *) "L2", b);
- L3 = lmm_constraint_new(Sys, (void *) "L3", a);
+ simgrid::kernel::lmm::System* Sys = new_system(method, true);
+ simgrid::kernel::lmm::Constraint* L1 = Sys->constraint_new(nullptr, a);
+ simgrid::kernel::lmm::Constraint* L2 = Sys->constraint_new(nullptr, b);
+ simgrid::kernel::lmm::Constraint* L3 = Sys->constraint_new(nullptr, a);
- R_1_2_3 = lmm_variable_new(Sys, (void *) "R 1->2->3", 1.0, -1.0, 3);
- R_1 = lmm_variable_new(Sys, (void *) "R 1", 1.0, -1.0, 1);
- R_2 = lmm_variable_new(Sys, (void *) "R 2", 1.0, -1.0, 1);
- R_3 = lmm_variable_new(Sys, (void *) "R 3", 1.0, -1.0, 1);
+ simgrid::kernel::lmm::Variable* R_1_2_3 = Sys->variable_new(nullptr, 1.0, -1.0, 3);
+ simgrid::kernel::lmm::Variable* R_1 = Sys->variable_new(nullptr, 1.0, -1.0, 1);
+ simgrid::kernel::lmm::Variable* R_2 = Sys->variable_new(nullptr, 1.0, -1.0, 1);
+ simgrid::kernel::lmm::Variable* R_3 = Sys->variable_new(nullptr, 1.0, -1.0, 1);
- lmm_update_variable_weight(Sys, R_1_2_3, 1.0);
- lmm_update_variable_weight(Sys, R_1, 1.0);
- lmm_update_variable_weight(Sys, R_2, 1.0);
- lmm_update_variable_weight(Sys, R_3, 1.0);
+ Sys->update_variable_weight(R_1_2_3, 1.0);
+ Sys->update_variable_weight(R_1, 1.0);
+ Sys->update_variable_weight(R_2, 1.0);
+ Sys->update_variable_weight(R_3, 1.0);
- lmm_expand(Sys, L1, R_1_2_3, 1.0);
- lmm_expand(Sys, L2, R_1_2_3, 1.0);
- lmm_expand(Sys, L3, R_1_2_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);
- lmm_expand(Sys, L1, R_1, 1.0);
- lmm_expand(Sys, L2, R_2, 1.0);
- lmm_expand(Sys, L3, R_3, 1.0);
+ Sys->expand(L1, R_1, 1.0);
+ Sys->expand(L2, R_2, 1.0);
+ Sys->expand(L3, R_3, 1.0);
if (method == MAXMIN) {
- lmm_solve(Sys);
- } else if (method == LAGRANGE_VEGAS) {
- double x = 3 * a / 4 - 3 * b / 8 + sqrt(9 * b * b + 4 * a * a - 4 * a * b) / 8;
- /* Computed with mupad and D_f=1.0 */
- double max_deviation = 0.0;
- if (x > a) {
- x = a;
- }
- if (x < 0) {
- x = 0;
+ Sys->solve();
+ } else {
+ double x;
+ if (method == LAGRANGE_VEGAS) {
+ x = 3 * a / 4 - 3 * b / 8 + sqrt(9 * b * b + 4 * a * a - 4 * a * b) / 8;
+ /* Computed with mupad and D_f=1.0 */
+ if (x > a) {
+ x = a;
+ }
+ if (x < 0) {
+ x = 0;
+ }
+ } else if (method == LAGRANGE_RENO) {
+ a_test_1 = a;
+ b_test_1 = b;
+ x = dichotomy(diff_lagrange_test_1, 0, a, 1e-13);
+
+ if (x < 0)
+ x = 0;
+ if (x > a)
+ x = a;
+ } else {
+ xbt_die( "Invalid method");
}
- lagrange_solve(Sys);
-
- max_deviation = MAX(max_deviation, fabs(lmm_variable_getvalue(R_1) - x));
- max_deviation = MAX(max_deviation, fabs(lmm_variable_getvalue(R_3) - x));
- max_deviation = MAX(max_deviation, fabs(lmm_variable_getvalue(R_2) - (b - a + x)));
- max_deviation = MAX(max_deviation, fabs(lmm_variable_getvalue(R_1_2_3) - (a - x)));
+ Sys->solve();
- if (max_deviation > 0.00001) { // Legacy value used in lagrange.c
- XBT_WARN("Max Deviation from optimal solution : %g", max_deviation);
- XBT_WARN("Found x = %1.20f", x);
- XBT_WARN("Deviation from optimal solution (R_1 = %g): %1.20f", x, lmm_variable_getvalue(R_1) - x);
- XBT_WARN("Deviation from optimal solution (R_2 = %g): %1.20f", b - a + x,
- lmm_variable_getvalue(R_2) - (b - a + x));
- XBT_WARN("Deviation from optimal solution (R_3 = %g): %1.20f", x, lmm_variable_getvalue(R_3) - x);
- XBT_WARN("Deviation from optimal solution (R_1_2_3 = %g): %1.20f", a - x,
- lmm_variable_getvalue(R_1_2_3) - (a - x));
- }
- } else if (method == LAGRANGE_RENO) {
- double x;
double max_deviation = 0.0;
-
- a_test_1 = a;
- b_test_1 = b;
- x = dichotomy(diff_lagrange_test_1, 0, a, 1e-13);
-
- if (x < 0)
- x = 0;
- if (x > a)
- x = a;
- lagrange_solve(Sys);
-
- max_deviation = MAX(max_deviation, fabs(lmm_variable_getvalue(R_1) - x));
- max_deviation = MAX(max_deviation, fabs(lmm_variable_getvalue(R_3) - x));
- max_deviation = MAX(max_deviation, fabs(lmm_variable_getvalue(R_2) - (b - a + x)));
- max_deviation = MAX(max_deviation, fabs(lmm_variable_getvalue(R_1_2_3) - (a - x)));
+ max_deviation = std::max(max_deviation, fabs(R_1->get_value() - x));
+ max_deviation = std::max(max_deviation, fabs(R_3->get_value() - x));
+ max_deviation = std::max(max_deviation, fabs(R_2->get_value() - (b - a + x)));
+ max_deviation = std::max(max_deviation, fabs(R_1_2_3->get_value() - (a - x)));
if (max_deviation > 0.00001) { // Legacy value used in lagrange.c
XBT_WARN("Max Deviation from optimal solution : %g", max_deviation);
XBT_WARN("Found x = %1.20f", x);
- XBT_WARN("Deviation from optimal solution (R_1 = %g): %1.20f", x, lmm_variable_getvalue(R_1) - x);
- XBT_WARN("Deviation from optimal solution (R_2 = %g): %1.20f", b - a + x,
- lmm_variable_getvalue(R_2) - (b - a + x));
- XBT_WARN("Deviation from optimal solution (R_3 = %g): %1.20f", x, lmm_variable_getvalue(R_3) - x);
- XBT_WARN("Deviation from optimal solution (R_1_2_3 = %g): %1.20f", a - x,
- lmm_variable_getvalue(R_1_2_3) - (a - x));
+ XBT_WARN("Deviation from optimal solution (R_1 = %g): %1.20f", x, R_1->get_value() - x);
+ XBT_WARN("Deviation from optimal solution (R_2 = %g): %1.20f", b - a + x, R_2->get_value() - (b - a + x));
+ XBT_WARN("Deviation from optimal solution (R_3 = %g): %1.20f", x, R_3->get_value() - x);
+ XBT_WARN("Deviation from optimal solution (R_1_2_3 = %g): %1.20f", a - x, R_1_2_3->get_value() - (a - x));
}
- } else {
- xbt_die( "Invalid method");
}
PRINT_VAR(R_1_2_3);
PRINT_VAR(R_2);
PRINT_VAR(R_3);
- lmm_variable_free(Sys, R_1_2_3);
- lmm_variable_free(Sys, R_1);
- lmm_variable_free(Sys, R_2);
- lmm_variable_free(Sys, R_3);
- lmm_system_free(Sys);
+ Sys->variable_free(R_1_2_3);
+ Sys->variable_free(R_1);
+ Sys->variable_free(R_2);
+ Sys->variable_free(R_3);
+ delete Sys;
}
static void test2(method_t method)
{
- lmm_system_t Sys = NULL;
- lmm_constraint_t CPU1 = NULL;
- lmm_constraint_t CPU2 = NULL;
-
- lmm_variable_t T1 = NULL;
- lmm_variable_t T2 = NULL;
-
if (method == LAGRANGE_VEGAS)
- lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp, func_vegas_fpi);
- else if (method == LAGRANGE_RENO)
- lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_fpi);
+ set_default_protocol_function(simgrid::kernel::lmm::func_vegas_f, simgrid::kernel::lmm::func_vegas_fp,
+ simgrid::kernel::lmm::func_vegas_fpi);
+ if (method == LAGRANGE_RENO)
+ set_default_protocol_function(simgrid::kernel::lmm::func_reno_f, simgrid::kernel::lmm::func_reno_fp,
+ simgrid::kernel::lmm::func_reno_fpi);
- Sys = lmm_system_new(1);
- CPU1 = lmm_constraint_new(Sys, (void *) "CPU1", 200.0);
- CPU2 = lmm_constraint_new(Sys, (void *) "CPU2", 100.0);
+ simgrid::kernel::lmm::System* Sys = new_system(method, true);
- T1 = lmm_variable_new(Sys, (void *) "T1", 1.0, -1.0, 1);
- T2 = lmm_variable_new(Sys, (void *) "T2", 1.0, -1.0, 1);
+ simgrid::kernel::lmm::Constraint* CPU1 = Sys->constraint_new(nullptr, 200.0);
+ simgrid::kernel::lmm::Constraint* CPU2 = Sys->constraint_new(nullptr, 100.0);
- lmm_update_variable_weight(Sys, T1, 1.0);
- lmm_update_variable_weight(Sys, T2, 1.0);
+ simgrid::kernel::lmm::Variable* T1 = Sys->variable_new(nullptr, 1.0, -1.0, 1);
+ simgrid::kernel::lmm::Variable* T2 = Sys->variable_new(nullptr, 1.0, -1.0, 1);
- lmm_expand(Sys, CPU1, T1, 1.0);
- lmm_expand(Sys, CPU2, T2, 1.0);
+ Sys->update_variable_weight(T1, 1.0);
+ Sys->update_variable_weight(T2, 1.0);
- if (method == MAXMIN) {
- lmm_solve(Sys);
- } else if (method == LAGRANGE_VEGAS) {
- lagrange_solve(Sys);
- } else if (method == LAGRANGE_RENO) {
- lagrange_solve(Sys);
- } else {
- xbt_die("Invalid method");
- }
+ Sys->expand(CPU1, T1, 1.0);
+ Sys->expand(CPU2, T2, 1.0);
+
+ Sys->solve();
PRINT_VAR(T1);
PRINT_VAR(T2);
- lmm_variable_free(Sys, T1);
- lmm_variable_free(Sys, T2);
- lmm_system_free(Sys);
+ Sys->variable_free(T1);
+ Sys->variable_free(T2);
+ delete Sys;
}
static void test3(method_t method)
int flows = 11;
int links = 10;
- int i = 0;
- int j = 0;
-
- double **A;
-
- lmm_system_t Sys = NULL;
- lmm_constraint_t *tmp_cnst = NULL;
- lmm_variable_t *tmp_var = NULL;
- char **tmp_name;
-
- /*array to add the the constraints of fictitious variables */
+ double** A = new double*[links + 5];
+ /* array to add the constraints of fictitious variables */
double B[15] = { 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1 };
- A = xbt_new0(double *, links + 5);
-
- for (i = 0; i < links + 5; i++) {
- A[i] = xbt_new0(double, flows + 5);
- for (j = 0; j < flows + 5; j++) {
+ for (int i = 0; i < links + 5; i++) {
+ A[i] = new double[flows + 5];
+ for (int j = 0; j < flows + 5; j++) {
A[i][j] = 0.0;
if (i >= links || j >= flows) {
A[14][15] = 1.0;
if (method == LAGRANGE_VEGAS)
- lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp, func_vegas_fpi);
- else if (method == LAGRANGE_RENO)
- lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_fpi);
-
- Sys = lmm_system_new(1);
+ set_default_protocol_function(simgrid::kernel::lmm::func_vegas_f, simgrid::kernel::lmm::func_vegas_fp,
+ simgrid::kernel::lmm::func_vegas_fpi);
+ if (method == LAGRANGE_RENO)
+ set_default_protocol_function(simgrid::kernel::lmm::func_reno_f, simgrid::kernel::lmm::func_reno_fp,
+ simgrid::kernel::lmm::func_reno_fpi);
- tmp_name = xbt_new0(char *, 31);
+ simgrid::kernel::lmm::System* Sys = new_system(method, true);
/* Creates the constraints */
- tmp_cnst = xbt_new0(lmm_constraint_t, 15);
- for (i = 0; i < 15; i++) {
- tmp_name[i] = bprintf("C_%03d", i);
- tmp_cnst[i] = lmm_constraint_new(Sys, (void *) tmp_name[i], B[i]);
- }
+ simgrid::kernel::lmm::Constraint** tmp_cnst = new simgrid::kernel::lmm::Constraint*[15];
+ for (int i = 0; i < 15; i++)
+ tmp_cnst[i] = Sys->constraint_new(nullptr, B[i]);
/* Creates the variables */
- tmp_var = xbt_new0(lmm_variable_t, 16);
- for (j = 0; j < 16; j++) {
- tmp_name[i + j] = bprintf("X_%03d", j);
- tmp_var[j] = lmm_variable_new(Sys, (void *) tmp_name[i + j], 1.0, -1.0, 15);
- lmm_update_variable_weight(Sys, tmp_var[j], 1.0);
+ simgrid::kernel::lmm::Variable** tmp_var = new simgrid::kernel::lmm::Variable*[16];
+ for (int j = 0; j < 16; j++) {
+ tmp_var[j] = Sys->variable_new(nullptr, 1.0, -1.0, 15);
+ Sys->update_variable_weight(tmp_var[j], 1.0);
}
/* Link constraints and variables */
- for (i = 0; i < 15; i++) {
- for (j = 0; j < 16; j++) {
- if (A[i][j]) {
- lmm_expand(Sys, tmp_cnst[i], tmp_var[j], 1.0);
- }
- }
- }
+ for (int i = 0; i < 15; i++)
+ for (int j = 0; j < 16; j++)
+ if (A[i][j])
+ Sys->expand(tmp_cnst[i], tmp_var[j], 1.0);
- if (method == MAXMIN) {
- lmm_solve(Sys);
- } else if (method == LAGRANGE_VEGAS) {
- lagrange_solve(Sys);
- } else if (method == LAGRANGE_RENO) {
- lagrange_solve(Sys);
- } else {
- xbt_die("Invalid method");
- }
+ Sys->solve();
- for (j = 0; j < 16; j++) {
+ for (int j = 0; j < 16; j++)
PRINT_VAR(tmp_var[j]);
- }
- for (j = 0; j < 16; j++)
- lmm_variable_free(Sys, tmp_var[j]);
- xbt_free(tmp_var);
- xbt_free(tmp_cnst);
- for (i = 0; i < 31; i++)
- xbt_free(tmp_name[i]);
- xbt_free(tmp_name);
- lmm_system_free(Sys);
- for (i = 0; i < links + 5; i++)
- xbt_free(A[i]);
- xbt_free(A);
+ for (int j = 0; j < 16; j++)
+ Sys->variable_free(tmp_var[j]);
+ delete[] tmp_var;
+ delete[] tmp_cnst;
+ delete Sys;
+ for (int i = 0; i < links + 5; i++)
+ delete[] A[i];
+ delete[] A;
}
-int main(int argc, char **argv)
+int main(int argc, char** argv)
{
- xbt_init(&argc, argv);
-
+ MSG_init(&argc, argv);
XBT_INFO("***** Test 1 (Max-Min)");
test1(MAXMIN);
XBT_INFO("***** Test 1 (Lagrange - Vegas)");
