-/* $Id$ */
-
-/* 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. */
#ifndef _SURF_MAXMIN_H
#define _SURF_MAXMIN_H
+#include <math.h>
#include "portable.h"
#include "xbt/misc.h"
#include "surf/datatypes.h"
-#define MAXMIN_PRECISION 0.00001
+extern double sg_maxmin_precision;
+#define MAXMIN_PRECISION sg_maxmin_precision
static XBT_INLINE void double_update(double *variable, double value)
{
*variable -= value;
return (value > MAXMIN_PRECISION);
}
-XBT_PUBLIC(lmm_system_t) lmm_system_new(void);
+static XBT_INLINE int double_equals(double value1, double value2)
+{
+ return (fabs(value1 - value2) < MAXMIN_PRECISION);
+}
+
+XBT_PUBLIC(lmm_system_t) lmm_system_new(int selective_update);
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);
- int lmm_constraint_is_shared(lmm_constraint_t cnst);
+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);
+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_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);
-
- 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);
+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);
+double lmm_get_cnst_weight_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);
+#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);
+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);
+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);
- 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);
-XBT_PUBLIC(void *) lmm_extract_modified_variable(lmm_system_t sys);
-
XBT_PUBLIC(void) lagrange_solve(lmm_system_t sys);
XBT_PUBLIC(void) bottleneck_solve(lmm_system_t sys);
*/
XBT_PUBLIC(void) lmm_set_default_protocol_function(double (*func_f)
- (lmm_variable_t var, double x),
+ (lmm_variable_t var,
+ double x),
double (*func_fp)
- (lmm_variable_t var, double x),
+ (lmm_variable_t var,
+ double x),
double (*func_fpi)
- (lmm_variable_t var, double x));
+ (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_vegas_fpi) (lmm_variable_t var, double x);
-#endif /* _SURF_MAXMIN_H */
+#endif /* _SURF_MAXMIN_H */
