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. */
13 #define MAXMIN_PRECISION 0.00001
14 static XBT_INLINE void double_update(double *variable, double value)
17 if(*variable< MAXMIN_PRECISION) *variable = 0.0;
20 static XBT_INLINE int double_positive(double value)
22 return (value>MAXMIN_PRECISION);
25 typedef struct lmm_variable *lmm_variable_t;
26 typedef struct lmm_constraint *lmm_constraint_t;
27 typedef struct lmm_system *lmm_system_t;
29 XBT_PUBLIC(lmm_system_t) lmm_system_new(void);
30 XBT_PUBLIC(void) lmm_system_free(lmm_system_t sys);
31 void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var);
33 XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void *id,
35 void lmm_constraint_shared(lmm_constraint_t cnst);
37 void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
39 XBT_PUBLIC(lmm_variable_t) lmm_variable_new(lmm_system_t sys, void *id,
41 double bound, int number_of_constraints);
42 void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
43 XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var);
45 XBT_PUBLIC(void) lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
46 lmm_variable_t var, double value);
47 void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst,
48 lmm_variable_t var, double value);
49 void lmm_elem_set_value(lmm_system_t sys, lmm_constraint_t cnst,
50 lmm_variable_t var, double value);
52 lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys,
53 lmm_variable_t var, int num);
54 int lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var);
55 lmm_variable_t lmm_get_var_from_cnst(lmm_system_t sys,
56 lmm_constraint_t cnst,
57 lmm_variable_t * var);
59 lmm_constraint_t lmm_get_first_active_constraint(lmm_system_t sys);
60 lmm_constraint_t lmm_get_next_active_constraint(lmm_system_t sys, lmm_constraint_t cnst);
62 void *lmm_constraint_id(lmm_constraint_t cnst);
63 void *lmm_variable_id(lmm_variable_t var);
65 void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
66 lmm_variable_t var, double value);
67 void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var,
71 XBT_PUBLIC(void) lmm_update_variable_latency(lmm_system_t sys, lmm_variable_t var,
76 XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var,
78 double lmm_get_variable_weight(lmm_variable_t var);
80 XBT_PUBLIC(void) lmm_update_constraint_bound(lmm_system_t sys, lmm_constraint_t cnst,
83 int lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst);
86 XBT_PUBLIC(void) lmm_solve(lmm_system_t sys);
89 XBT_PUBLIC(void) sdp_solve(lmm_system_t sys);
92 XBT_PUBLIC(void) lagrange_solve(lmm_system_t sys);
93 XBT_PUBLIC(void) bottleneck_solve(lmm_system_t sys);
96 * Default functions associated to the chosen protocol. When
97 * using the lagrangian approach.
100 XBT_PUBLIC(void) lmm_set_default_protocol_function(double (* func_f) (lmm_variable_t var, double x),
101 double (* func_fp) (lmm_variable_t var, double x),
102 double (* func_fpi)(lmm_variable_t var, double x));
104 XBT_PUBLIC(double func_reno_f) (lmm_variable_t var, double x);
105 XBT_PUBLIC(double func_reno_fp) (lmm_variable_t var, double x);
106 XBT_PUBLIC(double func_reno_fpi)(lmm_variable_t var, double x);
108 XBT_PUBLIC(double func_vegas_f) (lmm_variable_t var, double x);
109 XBT_PUBLIC(double func_vegas_fp) (lmm_variable_t var, double x);
110 XBT_PUBLIC(double func_vegas_fpi)(lmm_variable_t var, double x);
113 #endif /* _SURF_MAXMIN_H */