X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/40b9540a553006e50628eb13c451c354a0671d3e..5a875f9205d14b21c58c948ef2c1a80abf1c47d5:/src/include/surf/maxmin.h diff --git a/src/include/surf/maxmin.h b/src/include/surf/maxmin.h index 240ad93655..a522198151 100644 --- a/src/include/surf/maxmin.h +++ b/src/include/surf/maxmin.h @@ -1,6 +1,5 @@ -/* $Id$ */ - -/* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */ +/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team. + * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ @@ -8,86 +7,92 @@ #ifndef _SURF_MAXMIN_H #define _SURF_MAXMIN_H +#include #include "portable.h" #include "xbt/misc.h" +#include "surf/datatypes.h" #define MAXMIN_PRECISION 0.00001 -static XBT_INLINE void double_update(double *variable, double value) +static XBT_INLINE void double_update(double *variable, double value) { *variable -= value; - if(*variable< MAXMIN_PRECISION) *variable = 0.0; + if (*variable < MAXMIN_PRECISION) + *variable = 0.0; } -static XBT_INLINE int double_positive(double value) +static XBT_INLINE int double_positive(double value) { - return (value>MAXMIN_PRECISION); + return (value > MAXMIN_PRECISION); } -typedef struct lmm_element *lmm_element_t; -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_equals(double value1, double value2) +{ + return (fabs(value1 - value2) < 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); XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void *id, - double bound_value); + 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); XBT_PUBLIC(lmm_variable_t) lmm_variable_new(lmm_system_t sys, void *id, - double weight_value, - double bound, int number_of_constraints); + 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); + lmm_variable_t var, double value); void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst, - lmm_variable_t var, double value); + 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); lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys, - lmm_variable_t var, int num); + 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 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_next_active_constraint(lmm_system_t sys, + lmm_constraint_t cnst); +#ifdef HAVE_LATENCY_BOUND_TRACKING +XBT_PUBLIC(int) lmm_is_variable_limited_by_latency(lmm_variable_t var); +#endif 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); + lmm_variable_t var, double value); void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var, - double bound); + double bound); -XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var, - double weight); +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_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); XBT_PUBLIC(void) lmm_solve(lmm_system_t sys); -#ifdef HAVE_SDP -XBT_PUBLIC(void) sdp_solve(lmm_system_t sys); -#endif /* HAVE_SDP */ - XBT_PUBLIC(void) lagrange_solve(lmm_system_t sys); XBT_PUBLIC(void) bottleneck_solve(lmm_system_t sys); @@ -96,21 +101,27 @@ XBT_PUBLIC(void) bottleneck_solve(lmm_system_t sys); * 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(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_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_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_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_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); +XBT_PUBLIC(double func_vegas_fpi) (lmm_variable_t var, double x); -#endif /* _SURF_MAXMIN_H */ +#endif /* _SURF_MAXMIN_H */