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_variable *lmm_variable_t;
27 typedef struct lmm_constraint *lmm_constraint_t;
28 typedef struct lmm_system *lmm_system_t;
30 XBT_PUBLIC(lmm_system_t) lmm_system_new(void);
31 XBT_PUBLIC(void) lmm_system_free(lmm_system_t sys);
32 void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var);
34 XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void *id,
36 void lmm_constraint_shared(lmm_constraint_t cnst);
38 void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
40 XBT_PUBLIC(lmm_variable_t) lmm_variable_new(lmm_system_t sys, void *id,
42 double bound, int number_of_constraints);
43 void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
44 XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var);
47 XBT_PUBLIC(void) lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
48 lmm_variable_t var, double value);
49 void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst,
50 lmm_variable_t var, double value);
51 void lmm_elem_set_value(lmm_system_t sys, lmm_constraint_t cnst,
52 lmm_variable_t var, double value);
54 lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys,
55 lmm_variable_t var, int num);
56 int lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var);
57 lmm_variable_t lmm_get_var_from_cnst(lmm_system_t sys,
58 lmm_constraint_t cnst,
59 lmm_variable_t * var);
61 lmm_constraint_t lmm_get_first_active_constraint(lmm_system_t sys);
62 lmm_constraint_t lmm_get_next_active_constraint(lmm_system_t sys, lmm_constraint_t cnst);
64 void *lmm_constraint_id(lmm_constraint_t cnst);
65 void *lmm_variable_id(lmm_variable_t var);
67 void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
68 lmm_variable_t var, double value);
69 void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var,
73 void lmm_update_variable_latency(lmm_system_t sys, lmm_variable_t var,
78 XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var,
80 double lmm_get_variable_weight(lmm_variable_t var);
82 void lmm_update_constraint_bound(lmm_system_t sys, lmm_constraint_t cnst,
85 int lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst);
88 XBT_PUBLIC(void) lmm_solve(lmm_system_t sys);
91 void sdp_solve(lmm_system_t sys);
94 void lagrange_solve(lmm_system_t sys);
96 void lagrange_dicotomi_solve(lmm_system_t sys);
101 * Default functions associated to the chosen protocol. When
102 * using the lagrangian approach.
104 double (* func_f_def ) (lmm_variable_t , double);
105 double (* func_fp_def ) (lmm_variable_t , double);
106 double (* func_fpi_def ) (lmm_variable_t , double);
107 double (* func_fpip_def) (lmm_variable_t , double);
111 void lmm_set_default_protocol_functions(double (* func_f) (lmm_variable_t var, double x),
112 double (* func_fp) (lmm_variable_t var, double x),
113 double (* func_fpi) (lmm_variable_t var, double x),
114 double (* func_fpip) (lmm_variable_t var, double x));
116 double func_reno_f(lmm_variable_t var, double x);
117 double func_reno_fp(lmm_variable_t var, double x);
118 double func_reno_fpi(lmm_variable_t var, double x);
119 double func_reno_fpip(lmm_variable_t var, double x);
121 double func_vegas_f(lmm_variable_t var, double x);
122 double func_vegas_fp(lmm_variable_t var, double x);
123 double func_vegas_fpi(lmm_variable_t var, double x);
124 double func_vegas_fpip(lmm_variable_t var, double x);
127 #endif /* _SURF_MAXMIN_H */