xbt_swag_insert_at_head(var, &(sys->variable_set));
else
xbt_swag_insert_at_tail(var, &(sys->variable_set));
- XBT_OUT();
+
+ XBT_OUT(" returns %p", var);
return var;
}
xbt_swag_insert_at_head(elem, &(elem->constraint->element_set));
else
xbt_swag_insert_at_tail(elem, &(elem->constraint->element_set));
-
- make_constraint_active(sys, cnst);
- lmm_update_modified_set(sys, cnst);
- if (var->cnsts_number > 1)
- lmm_update_modified_set(sys, var->cnsts[0].constraint);
+ if(!sys->selective_update_active) {
+ make_constraint_active(sys, cnst);
+ } else if(elem->value>0 || var->weight >0) {
+ make_constraint_active(sys, cnst);
+ lmm_update_modified_set(sys, cnst);
+ if (var->cnsts_number > 1)
+ lmm_update_modified_set(sys, var->cnsts[0].constraint);
+ }
}
void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst,
return NULL;
}
+XBT_INLINE double lmm_get_cnst_weight_from_var(lmm_system_t sys,
+ lmm_variable_t var,
+ int num)
+{
+ if (num < var->cnsts_number)
+ return (var->cnsts[num].value);
+ else
+ return 0.0;
+}
+
XBT_INLINE int lmm_get_number_of_cnst_from_var(lmm_system_t sys,
lmm_variable_t var)
{
return var->id;
}
-static XBT_INLINE void saturated_constraint_set_update(lmm_system_t sys,
- lmm_constraint_t
- cnst,
- double *min_usage)
+static XBT_INLINE int saturated_constraint_set_update(lmm_system_t sys,
+ lmm_constraint_t
+ cnst,
+ double *min_usage)
{
- lmm_constraint_t useless_cnst = NULL;
+ volatile double usage;
XBT_IN("sys=%p, cnst=%p, min_usage=%f", sys, cnst, *min_usage);
if (cnst->usage <= 0) {
XBT_OUT();
- return;
+ return 1;
}
if (cnst->remaining <= 0) {
XBT_OUT();
- return;
+ return 1;
}
- if ((*min_usage < 0) || (*min_usage > cnst->remaining / cnst->usage)) {
- *min_usage = cnst->remaining / cnst->usage;
- XBT_LOG(xbt_log_priority_trace,
- "min_usage=%f (cnst->remaining=%f, cnst->usage=%f)", *min_usage,
- cnst->remaining, cnst->usage);
- while ((useless_cnst =
- xbt_swag_getFirst(&(sys->saturated_constraint_set))))
- xbt_swag_remove(useless_cnst, &(sys->saturated_constraint_set));
-
- xbt_swag_insert(cnst, &(sys->saturated_constraint_set));
- } else if (*min_usage == cnst->remaining / cnst->usage) {
- xbt_swag_insert(cnst, &(sys->saturated_constraint_set));
+ usage = cnst->remaining / cnst->usage;
+ if (*min_usage < 0 || *min_usage > usage) {
+ *min_usage = usage;
+ XBT_HERE(" min_usage=%f (cnst->remaining=%f, cnst->usage=%f)",
+ *min_usage, cnst->remaining, cnst->usage);
+ xbt_swag_reset(&sys->saturated_constraint_set);
+ xbt_swag_insert(cnst, &sys->saturated_constraint_set);
+ } else if (*min_usage == usage) {
+ xbt_swag_insert(cnst, &sys->saturated_constraint_set);
}
XBT_OUT();
+ return 0;
}
static XBT_INLINE void saturated_variable_set_update(lmm_system_t sys)
{
lmm_variable_t var = NULL;
lmm_constraint_t cnst = NULL;
+ lmm_constraint_t cnst_next = NULL;
lmm_element_t elem = NULL;
xbt_swag_t cnst_list = NULL;
xbt_swag_t var_list = NULL;
}
}
- xbt_swag_foreach(cnst, cnst_list) {
+ xbt_swag_foreach_safe(cnst, cnst_next, cnst_list) {
/* INIT */
cnst->remaining = cnst->bound;
if (cnst->remaining == 0)
}
XBT_DEBUG("Constraint Usage '%d' : %f", cnst->id_int, cnst->usage);
/* Saturated constraints update */
+ if(cnst->usage>0) {
+ // TODO Créer une contrainte light
+ // À partir de maintenant, usage et remaining sont dans cnst_light uniquement.
+ // En fait, usage et remaining doivent disparaitre complètement de cnst pour n'être que dans cnst_light.
+ xbt_swag_remove(cnst, cnst_list);
+ xbt_swag_insert_at_head(cnst, cnst_list);
+ }
+ // On a deux dynars:
+ // - Celui de cnst_list avec les csnt_light
+ // - saturated_constraint_set, celui des indexes de cnst_list qui sont saturées
+ // Si la cnst_light est un minimum_usage on la met dans saturated_constraint_set
saturated_constraint_set_update(sys, cnst, &min_usage);
}
+ // On parcours saturated_constraint_set (le tableau d'index) dans le sens décroissant
+ // - on accède aux contraintes correspondantes pour mettre les variables dans saturated_variable_set
+ // - on se permutte si besoin avec le dernier élément; on enlève le dernier élément de cnst_list
saturated_variable_set_update(sys);
/* Saturated variables update */
if (cnst->shared) {
double_update(&(cnst->remaining), elem->value * var->value);
double_update(&(cnst->usage), elem->value / var->weight);
+ if(cnst->usage<=0 || cnst->remaining<=0) {
+ xbt_swag_remove(cnst, cnst_list);
+ xbt_swag_insert_at_tail(cnst, cnst_list);
+ }
make_elem_inactive(elem);
} else { /* FIXME one day: We recompute usage.... :( */
cnst->usage = 0.0;
/* Find out which variables reach the maximum */
min_usage = -1;
min_bound = -1;
+
xbt_swag_foreach(cnst, cnst_list) {
- saturated_constraint_set_update(sys, cnst, &min_usage);
+ if(saturated_constraint_set_update(sys, cnst, &min_usage)) break;
}
saturated_variable_set_update(sys);
