X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/39b484e7e863de804daea3e0cc80afdf678af8dc..5830b3e635fa9e5a493d8cc9a2006bff50c67d50:/src/include/surf/maxmin.h diff --git a/src/include/surf/maxmin.h b/src/include/surf/maxmin.h index 93c3c1de54..44dcfdfd4b 100644 --- a/src/include/surf/maxmin.h +++ b/src/include/surf/maxmin.h @@ -8,75 +8,114 @@ #ifndef _SURF_MAXMIN_H #define _SURF_MAXMIN_H +#include "portable.h" #include "xbt/misc.h" -#include "portable.h" -static XBT_INLINE void double_update(double *variable, double value) +#include "surf/datatypes.h" + +#define MAXMIN_PRECISION 0.00001 +static XBT_INLINE void double_update(double *variable, double value) { *variable -= value; - if(*variable< 0.00001) *variable = 0.0; + if (*variable < MAXMIN_PRECISION) + *variable = 0.0; } -typedef struct lmm_variable *lmm_variable_t; -typedef struct lmm_constraint *lmm_constraint_t; -typedef struct lmm_system *lmm_system_t; +static XBT_INLINE int double_positive(double value) +{ + return (value > MAXMIN_PRECISION); +} XBT_PUBLIC(lmm_system_t) lmm_system_new(void); XBT_PUBLIC(void) lmm_system_free(lmm_system_t sys); -void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var); + void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var); XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void *id, - double bound_value); -void lmm_constraint_shared(lmm_constraint_t cnst); + double bound_value); + void lmm_constraint_shared(lmm_constraint_t cnst); + int lmm_constraint_is_shared(lmm_constraint_t cnst); -void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst); + void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst); XBT_PUBLIC(lmm_variable_t) lmm_variable_new(lmm_system_t sys, void *id, - double weight_value, - double bound, int number_of_constraints); -void lmm_variable_free(lmm_system_t sys, lmm_variable_t var); + double weight_value, + double bound, + int number_of_constraints); + void lmm_variable_free(lmm_system_t sys, lmm_variable_t var); XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var); - +XBT_PUBLIC(double) lmm_variable_getbound(lmm_variable_t var); XBT_PUBLIC(void) lmm_expand(lmm_system_t sys, lmm_constraint_t cnst, - lmm_variable_t var, double value); -void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst, - lmm_variable_t var, double value); -void lmm_elem_set_value(lmm_system_t sys, lmm_constraint_t cnst, - lmm_variable_t var, double value); + lmm_variable_t var, double value); + void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst, + lmm_variable_t var, double value); + void lmm_elem_set_value(lmm_system_t sys, lmm_constraint_t cnst, + lmm_variable_t var, double value); + + lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys, + lmm_variable_t var, int num); + int lmm_get_number_of_cnst_from_var(lmm_system_t sys, + lmm_variable_t var); + lmm_variable_t lmm_get_var_from_cnst(lmm_system_t sys, + lmm_constraint_t cnst, + lmm_element_t * elem); + + lmm_constraint_t lmm_get_first_active_constraint(lmm_system_t sys); + lmm_constraint_t lmm_get_next_active_constraint(lmm_system_t sys, + lmm_constraint_t cnst); -lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys, - lmm_variable_t var, int num); -int lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var); -lmm_variable_t lmm_get_var_from_cnst(lmm_system_t sys, - lmm_constraint_t cnst, - lmm_variable_t * var); + void *lmm_constraint_id(lmm_constraint_t cnst); + void *lmm_variable_id(lmm_variable_t var); -lmm_constraint_t lmm_get_first_active_constraint(lmm_system_t sys); -lmm_constraint_t lmm_get_next_active_constraint(lmm_system_t sys, lmm_constraint_t cnst); + void lmm_update(lmm_system_t sys, lmm_constraint_t cnst, + lmm_variable_t var, double value); + void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var, + double bound); -void *lmm_constraint_id(lmm_constraint_t cnst); -void *lmm_variable_id(lmm_variable_t var); -void lmm_update(lmm_system_t sys, lmm_constraint_t cnst, - lmm_variable_t var, double value); -void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var, - double bound); -XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var, - double weight); -double lmm_get_variable_weight(lmm_variable_t var); +XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys, + lmm_variable_t var, + double weight); + double lmm_get_variable_weight(lmm_variable_t var); -void lmm_update_constraint_bound(lmm_system_t sys, lmm_constraint_t cnst, - double bound); +XBT_PUBLIC(void) lmm_update_constraint_bound(lmm_system_t sys, + lmm_constraint_t cnst, + double bound); -int lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst); + int lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst); XBT_PUBLIC(void) lmm_solve(lmm_system_t sys); #ifdef HAVE_SDP -void sdp_solve(lmm_system_t sys); +XBT_PUBLIC(void) sdp_solve(lmm_system_t sys); #endif /* HAVE_SDP */ -void lagrange_solve(lmm_system_t sys); +XBT_PUBLIC(void) lagrange_solve(lmm_system_t sys); +XBT_PUBLIC(void) bottleneck_solve(lmm_system_t sys); + +/** + * Default functions associated to the chosen protocol. When + * using the lagrangian approach. + */ + +XBT_PUBLIC(void) lmm_set_default_protocol_function(double (*func_f) + (lmm_variable_t var, double x), + double (*func_fp) + (lmm_variable_t var, double x), + double (*func_fpi) + (lmm_variable_t var, double x)); + +XBT_PUBLIC(double func_reno_f) (lmm_variable_t var, double x); +XBT_PUBLIC(double func_reno_fp) (lmm_variable_t var, double x); +XBT_PUBLIC(double func_reno_fpi) (lmm_variable_t var, double x); + +XBT_PUBLIC(double func_reno2_f) (lmm_variable_t var, double x); +XBT_PUBLIC(double func_reno2_fp) (lmm_variable_t var, double x); +XBT_PUBLIC(double func_reno2_fpi) (lmm_variable_t var, double x); + +XBT_PUBLIC(double func_vegas_f) (lmm_variable_t var, double x); +XBT_PUBLIC(double func_vegas_fp) (lmm_variable_t var, double x); +XBT_PUBLIC(double func_vegas_fpi) (lmm_variable_t var, double x); + -#endif /* _SURF_MAXMIN_H */ +#endif /* _SURF_MAXMIN_H */