1 /* Copyright (c) 2004-2014. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #ifndef _SURF_MAXMIN_PRIVATE_H
8 #define _SURF_MAXMIN_PRIVATE_H
10 #include "surf/maxmin.h"
12 #include "xbt/mallocator.h"
13 #include "surf_interface.hpp"
18 typedef struct lmm_element {
19 /* hookup to constraint */
20 s_xbt_swag_hookup_t element_set_hookup;
21 s_xbt_swag_hookup_t active_element_set_hookup;
23 lmm_constraint_t constraint;
24 lmm_variable_t variable;
27 #define make_elem_active(elem) xbt_swag_insert_at_head(elem,&(elem->constraint->active_element_set))
28 #define make_elem_inactive(elem) xbt_swag_remove(elem,&(elem->constraint->active_element_set))
30 typedef struct lmm_constraint_light {
31 double remaining_over_usage;
32 lmm_constraint_t cnst;
33 } s_lmm_constraint_light_t;
36 * @brief LMM constraint
38 typedef struct lmm_constraint {
39 /* hookup to system */
40 s_xbt_swag_hookup_t constraint_set_hookup;
41 s_xbt_swag_hookup_t active_constraint_set_hookup;
42 s_xbt_swag_hookup_t modified_constraint_set_hookup;
43 s_xbt_swag_hookup_t saturated_constraint_set_hookup;
45 s_xbt_swag_t element_set; /* a list of lmm_element_t */
46 s_xbt_swag_t active_element_set; /* a list of lmm_element_t */
55 lmm_constraint_light_t cnst_light;
61 typedef struct lmm_variable {
62 /* hookup to system */
63 s_xbt_swag_hookup_t variable_set_hookup;
64 s_xbt_swag_hookup_t saturated_variable_set_hookup;
66 s_lmm_element_t *cnsts;
74 unsigned visited; /* used by lmm_update_modified_set */
75 /* \begin{For Lagrange only} */
78 double (*func_f) (struct lmm_variable * var, double x); /* (f) */
79 double (*func_fp) (struct lmm_variable * var, double x); /* (f') */
80 double (*func_fpi) (struct lmm_variable * var, double x); /* (f')^{-1} */
81 /* \end{For Lagrange only} */
87 typedef struct lmm_system {
89 int selective_update_active; /* flag to update partially the system only selecting changed portions */
90 unsigned visited_counter; /* used by lmm_update_modified_set */
91 s_xbt_swag_t variable_set; /* a list of lmm_variable_t */
92 s_xbt_swag_t constraint_set; /* a list of lmm_constraint_t */
94 s_xbt_swag_t active_constraint_set; /* a list of lmm_constraint_t */
95 s_xbt_swag_t modified_constraint_set; /* a list of modified lmm_constraint_t */
97 s_xbt_swag_t saturated_variable_set; /* a list of lmm_variable_t */
98 s_xbt_swag_t saturated_constraint_set; /* a list of lmm_constraint_t_t */
100 ActionLmmListPtr keep_track;
102 xbt_mallocator_t variable_mallocator;
105 #define extract_variable(sys) xbt_swag_extract(&(sys->variable_set))
106 #define extract_constraint(sys) xbt_swag_extract(&(sys->constraint_set))
107 #define insert_constraint(sys,cnst) xbt_swag_insert(cnst,&(sys->constraint_set))
108 #define remove_variable(sys,var) do {xbt_swag_remove(var,&(sys->variable_set));\
109 xbt_swag_remove(var,&(sys->saturated_variable_set));} while(0)
110 #define remove_constraint(sys,cnst) do {xbt_swag_remove(cnst,&(sys->constraint_set));\
111 xbt_swag_remove(cnst,&(sys->saturated_constraint_set));} while(0)
112 #define make_constraint_active(sys,cnst) xbt_swag_insert(cnst,&(sys->active_constraint_set))
113 #define make_constraint_inactive(sys,cnst) \
114 do { xbt_swag_remove(cnst, &sys->active_constraint_set); \
115 xbt_swag_remove(cnst, &sys->modified_constraint_set); } while (0)
117 /** @ingroup SURF_lmm
118 * @brief Print informations about a lmm system
120 * @param sys A lmm system
122 void lmm_print(lmm_system_t sys);
124 extern double (*func_f_def) (lmm_variable_t, double);
125 extern double (*func_fp_def) (lmm_variable_t, double);
126 extern double (*func_fpi_def) (lmm_variable_t, double);
128 #endif /* _SURF_MAXMIN_PRIVATE_H */