#ifndef SURF_MAXMIN_PRIVATE_H
#define SURF_MAXMIN_PRIVATE_H
-#include "surf/maxmin.h"
-#include "xbt/swag.h"
-#include "xbt/mallocator.h"
+#include "surf/maxmin.hpp"
#include "surf_interface.hpp"
+#include "xbt/mallocator.h"
+#include "xbt/swag.h"
/** @ingroup SURF_lmm
* @brief LMM element
* Basically, each variable will have a set of elements, one for each constraint where it is involved.
* Then, it is used to list all variables involved in constraint through constraint's xxx_element_set lists, or vice-versa list all constraints for a given variable.
*/
-typedef struct lmm_element {
+struct s_lmm_element_t {
/* hookup to constraint */
s_xbt_swag_hookup_t enabled_element_set_hookup;
s_xbt_swag_hookup_t disabled_element_set_hookup;
lmm_constraint_t constraint;
lmm_variable_t variable;
- double value;
-} s_lmm_element_t;
+
+ // consumption_weight: impact of 1 byte or flop of your application onto the resource (in byte or flop)
+ // - if CPU, then probably 1.
+ // - If network, then 1 in forward direction and 0.05 backward for the ACKs
+ double consumption_weight;
+};
#define make_elem_active(elem) xbt_swag_insert_at_head(elem,&(elem->constraint->active_element_set))
#define make_elem_inactive(elem) xbt_swag_remove(elem,&(elem->constraint->active_element_set))
-typedef struct lmm_constraint_light {
+struct s_lmm_constraint_light_t {
double remaining_over_usage;
lmm_constraint_t cnst;
-} s_lmm_constraint_light_t;
+};
/** @ingroup SURF_lmm
* @brief LMM constraint
* \li Active elements which variable's weight is non-zero (i.e. it is enabled) AND its element value is non-zero. LMM_solve iterates over active elements during resolution, dynamically making them active or unactive.
*
*/
-typedef struct lmm_constraint {
+struct s_lmm_constraint_t {
/* hookup to system */
s_xbt_swag_hookup_t constraint_set_hookup;
s_xbt_swag_hookup_t active_constraint_set_hookup;
double lambda;
double new_lambda;
lmm_constraint_light_t cnst_light;
-} s_lmm_constraint_t;
+};
/** @ingroup SURF_lmm
* @brief LMM variable
*
* When something prevents us from enabling a variable, we "stage" the weight that we would have like to set, so that as soon as possible we enable the variable with desired weight
*/
-typedef struct lmm_variable {
+struct s_lmm_variable_t {
/* hookup to system */
s_xbt_swag_hookup_t variable_set_hookup;
s_xbt_swag_hookup_t saturated_variable_set_hookup;
s_lmm_element_t *cnsts;
int cnsts_size;
int cnsts_number;
- double weight; /* weight > 0 means variable is considered by LMM, weight == 0 means variable is not considered by LMM*/
+
+ // sharing_weight: variable's impact on the resource during the sharing
+ // if == 0, the variable is not considered by LMM
+ // on CPU, actions with N threads have a sharing of N
+ // on network, the actions with higher latency have a lesser sharing_weight
+ double sharing_weight;
+
double staged_weight; /* If non-zero, variable is staged for addition as soon as maxconcurrency constraints will be met */
double bound;
double value;
/* \begin{For Lagrange only} */
double mu;
double new_mu;
- double (*func_f) (struct lmm_variable * var, double x); /* (f) */
- double (*func_fp) (struct lmm_variable * var, double x); /* (f') */
- double (*func_fpi) (struct lmm_variable * var, double x); /* (f')^{-1} */
+ double (*func_f)(s_lmm_variable_t* var, double x); /* (f) */
+ double (*func_fp)(s_lmm_variable_t* var, double x); /* (f') */
+ double (*func_fpi)(s_lmm_variable_t* var, double x); /* (f')^{-1} */
/* \end{For Lagrange only} */
-} s_lmm_variable_t;
+};
/** @ingroup SURF_lmm
* @brief LMM system
*/
-typedef struct lmm_system {
+struct s_lmm_system_t {
int modified;
bool selective_update_active; /* flag to update partially the system only selecting changed portions */
unsigned visited_counter; /* used by lmm_update_modified_set and lmm_remove_modified_set to cleverly (un-)flag the constraints (more details in these functions)*/
xbt_mallocator_t variable_mallocator;
void (*solve_fun)(lmm_system_t self);
-} s_lmm_system_t;
+};
#define extract_variable(sys) xbt_swag_extract(&(sys->variable_set))
#define extract_constraint(sys) xbt_swag_extract(&(sys->constraint_set))
