#include "xbt/misc.h"
#include "portable.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;
+}
+
+static XBT_INLINE int double_positive(double value)
+{
+ return (value>MAXMIN_PRECISION);
}
typedef struct lmm_variable *lmm_variable_t;
void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var,
double bound);
-/** \brief Add the value delta to var->df the sum of latencys.
- *
- * \param sys the lmm_system_t
- * \param var the lmm_variable_t
- *
- * Add the value delta to var->df (the sum of latencys associated to the
- * flow). Whenever this function is called a change is signed in the system. To
- * avoid false system changing detection it is a good idea to test
- * (delta != 0) before calling it.
- *
- */
+
void lmm_update_variable_latency(lmm_system_t sys, lmm_variable_t var,
double delta);
void lagrange_dicotomi_solve(lmm_system_t sys);
+
+
+/**
+ * Default functions associated to the chosen protocol. When
+ * using the lagrangian approach.
+ */
+double (* func_f_def ) (lmm_variable_t , double);
+double (* func_fp_def ) (lmm_variable_t , double);
+double (* func_fpi_def ) (lmm_variable_t , double);
+double (* func_fpip_def) (lmm_variable_t , double);
+
+
+
+void lmm_set_default_protocol_functions(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),
+ double (* func_fpip) (lmm_variable_t var, double x));
+
+double func_reno_f(lmm_variable_t var, double x);
+double func_reno_fp(lmm_variable_t var, double x);
+double func_reno_fpi(lmm_variable_t var, double x);
+double func_reno_fpip(lmm_variable_t var, double x);
+
+double func_vegas_f(lmm_variable_t var, double x);
+double func_vegas_fp(lmm_variable_t var, double x);
+double func_vegas_fpi(lmm_variable_t var, double x);
+double func_vegas_fpip(lmm_variable_t var, double x);
+
+
#endif /* _SURF_MAXMIN_H */