* 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.
*/
* 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.
*/
/* hookup to constraint */
s_xbt_swag_hookup_t enabled_element_set_hookup;
s_xbt_swag_hookup_t disabled_element_set_hookup;
/* hookup to constraint */
s_xbt_swag_hookup_t enabled_element_set_hookup;
s_xbt_swag_hookup_t disabled_element_set_hookup;
// - if CPU, then probably 1.
// - If network, then 1 in forward direction and 0.05 backward for the ACKs
double consumption_weight;
// - 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))
#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))
* \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.
*
*/
* \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.
*
*/
/** @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
*/
/** @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
*/
// 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
// 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 (*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} */
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)*/
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)*/
#define extract_variable(sys) xbt_swag_extract(&(sys->variable_set))
#define extract_constraint(sys) xbt_swag_extract(&(sys->constraint_set))
#define extract_variable(sys) xbt_swag_extract(&(sys->variable_set))
#define extract_constraint(sys) xbt_swag_extract(&(sys->constraint_set))