1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. 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"
14 typedef struct lmm_element {
15 /* hookup to constraint */
16 s_xbt_swag_hookup_t element_set_hookup;
17 s_xbt_swag_hookup_t active_element_set_hookup;
19 lmm_constraint_t constraint;
20 lmm_variable_t variable;
23 #define make_elem_active(elem) xbt_swag_insert_at_head(elem,&(elem->constraint->active_element_set))
24 #define make_elem_inactive(elem) xbt_swag_remove(elem,&(elem->constraint->active_element_set))
26 //typedef struct lmm_constraint_light {
27 // double remaining_over_usage;
28 // lmm_constraint_t cnst;
29 //} s_lmm_constraint_light_t;
31 typedef struct lmm_constraint {
32 /* hookup to system */
33 s_xbt_swag_hookup_t constraint_set_hookup;
34 s_xbt_swag_hookup_t active_constraint_set_hookup;
35 s_xbt_swag_hookup_t modified_constraint_set_hookup;
36 s_xbt_swag_hookup_t saturated_constraint_set_hookup;
38 s_xbt_swag_t element_set; /* a list of lmm_element_t */
39 s_xbt_swag_t active_element_set; /* a list of lmm_element_t */
50 typedef struct lmm_variable {
51 /* hookup to system */
52 s_xbt_swag_hookup_t variable_set_hookup;
53 s_xbt_swag_hookup_t saturated_variable_set_hookup;
55 s_lmm_element_t *cnsts;
63 unsigned visited; /* used by lmm_update_modified_set */
64 /* \begin{For Lagrange only} */
67 double (*func_f) (struct lmm_variable * var, double x); /* (f) */
68 double (*func_fp) (struct lmm_variable * var, double x); /* (f') */
69 double (*func_fpi) (struct lmm_variable * var, double x); /* (f')^{-1} */
70 /* \end{For Lagrange only} */
73 typedef struct lmm_system {
75 int selective_update_active; /* flag to update partially the system only selecting changed portions */
76 unsigned visited_counter; /* used by lmm_update_modified_set */
77 s_xbt_swag_t variable_set; /* a list of lmm_variable_t */
78 s_xbt_swag_t constraint_set; /* a list of lmm_constraint_t */
80 s_xbt_swag_t active_constraint_set; /* a list of lmm_constraint_t */
81 s_xbt_swag_t modified_constraint_set; /* a list of modified lmm_constraint_t */
83 s_xbt_swag_t saturated_variable_set; /* a list of lmm_variable_t */
84 s_xbt_swag_t saturated_constraint_set; /* a list of lmm_constraint_t_t */
86 xbt_swag_t keep_track;
88 xbt_mallocator_t variable_mallocator;
91 #define extract_variable(sys) xbt_swag_extract(&(sys->variable_set))
92 #define extract_constraint(sys) xbt_swag_extract(&(sys->constraint_set))
93 #define insert_constraint(sys,cnst) xbt_swag_insert(cnst,&(sys->constraint_set))
94 #define remove_variable(sys,var) do {xbt_swag_remove(var,&(sys->variable_set));\
95 xbt_swag_remove(var,&(sys->saturated_variable_set));} while(0)
96 #define remove_constraint(sys,cnst) do {xbt_swag_remove(cnst,&(sys->constraint_set));\
97 xbt_swag_remove(cnst,&(sys->saturated_constraint_set));} while(0)
98 #define make_constraint_active(sys,cnst) xbt_swag_insert(cnst,&(sys->active_constraint_set))
99 #define make_constraint_inactive(sys,cnst) \
100 do { xbt_swag_remove(cnst, &sys->active_constraint_set); \
101 xbt_swag_remove(cnst, &sys->modified_constraint_set); } while (0)
103 static void lmm_var_free(lmm_system_t sys, lmm_variable_t var);
104 static XBT_INLINE void lmm_cnst_free(lmm_system_t sys,
105 lmm_constraint_t cnst);
107 void lmm_print(lmm_system_t sys);
109 extern double (*func_f_def) (lmm_variable_t, double);
110 extern double (*func_fp_def) (lmm_variable_t, double);
111 extern double (*func_fpi_def) (lmm_variable_t, double);
113 #endif /* _SURF_MAXMIN_PRIVATE_H */