3 /* Copyright (c) 2004 Arnaud Legrand. 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. */
14 #define MAXMIN_PRECISION 0.00001
15 static XBT_INLINE void double_update(double *variable, double value)
18 if(*variable< MAXMIN_PRECISION) *variable = 0.0;
21 static XBT_INLINE int double_positive(double value)
23 return (value>MAXMIN_PRECISION);
26 typedef struct lmm_element *lmm_element_t;
27 typedef struct lmm_variable *lmm_variable_t;
28 typedef struct lmm_constraint *lmm_constraint_t;
29 typedef struct lmm_system *lmm_system_t;
31 XBT_PUBLIC(lmm_system_t) lmm_system_new(void);
32 XBT_PUBLIC(void) lmm_system_free(lmm_system_t sys);
33 void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var);
35 XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void *id,
37 void lmm_constraint_shared(lmm_constraint_t cnst);
38 int lmm_constraint_is_shared(lmm_constraint_t cnst);
40 void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
42 XBT_PUBLIC(lmm_variable_t) lmm_variable_new(lmm_system_t sys, void *id,
44 double bound, int number_of_constraints);
45 void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
46 XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var);
47 XBT_PUBLIC(double) lmm_variable_getbound(lmm_variable_t var);
49 XBT_PUBLIC(void) lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
50 lmm_variable_t var, double value);
51 void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst,
52 lmm_variable_t var, double value);
53 void lmm_elem_set_value(lmm_system_t sys, lmm_constraint_t cnst,
54 lmm_variable_t var, double value);
56 lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys,
57 lmm_variable_t var, int num);
58 int lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var);
59 lmm_variable_t lmm_get_var_from_cnst(lmm_system_t sys,
60 lmm_constraint_t cnst,
61 lmm_element_t * elem);
63 lmm_constraint_t lmm_get_first_active_constraint(lmm_system_t sys);
64 lmm_constraint_t lmm_get_next_active_constraint(lmm_system_t sys, lmm_constraint_t cnst);
66 void *lmm_constraint_id(lmm_constraint_t cnst);
67 void *lmm_variable_id(lmm_variable_t var);
69 void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
70 lmm_variable_t var, double value);
71 void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var,
75 XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var,
77 double lmm_get_variable_weight(lmm_variable_t var);
79 XBT_PUBLIC(void) lmm_update_constraint_bound(lmm_system_t sys, lmm_constraint_t cnst,
82 int lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst);
85 XBT_PUBLIC(void) lmm_solve(lmm_system_t sys);
88 XBT_PUBLIC(void) sdp_solve(lmm_system_t sys);
91 XBT_PUBLIC(void) lagrange_solve(lmm_system_t sys);
92 XBT_PUBLIC(void) bottleneck_solve(lmm_system_t sys);
95 * Default functions associated to the chosen protocol. When
96 * using the lagrangian approach.
99 XBT_PUBLIC(void) lmm_set_default_protocol_function(double (* func_f) (lmm_variable_t var, double x),
100 double (* func_fp) (lmm_variable_t var, double x),
101 double (* func_fpi)(lmm_variable_t var, double x));
103 XBT_PUBLIC(double func_reno_f) (lmm_variable_t var, double x);
104 XBT_PUBLIC(double func_reno_fp) (lmm_variable_t var, double x);
105 XBT_PUBLIC(double func_reno_fpi)(lmm_variable_t var, double x);
107 XBT_PUBLIC(double func_reno2_f) (lmm_variable_t var, double x);
108 XBT_PUBLIC(double func_reno2_fp) (lmm_variable_t var, double x);
109 XBT_PUBLIC(double func_reno2_fpi)(lmm_variable_t var, double x);
111 XBT_PUBLIC(double func_vegas_f) (lmm_variable_t var, double x);
112 XBT_PUBLIC(double func_vegas_fp) (lmm_variable_t var, double x);
113 XBT_PUBLIC(double func_vegas_fpi)(lmm_variable_t var, double x);
116 #endif /* _SURF_MAXMIN_H */