-/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2004-2011. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
static void *lmm_variable_mallocator_new_f(void);
static void lmm_variable_mallocator_free_f(void *var);
-static void lmm_variable_mallocator_reset_f(void *var);
+#define lmm_variable_mallocator_reset_f ((void_f_pvoid_t)NULL)
static void lmm_update_modified_set(lmm_system_t sys,
lmm_constraint_t cnst);
static void lmm_remove_all_modified_set(lmm_system_t sys);
-int sg_maxmin_selective_update = 1;
static int Global_debug_id = 1;
static int Global_const_debug_id = 1;
-extern xbt_swag_t keep_track;
-lmm_system_t lmm_system_new(void)
+lmm_system_t lmm_system_new(int selective_update)
{
lmm_system_t l = NULL;
s_lmm_variable_t var;
l = xbt_new0(s_lmm_system_t, 1);
l->modified = 0;
- l->selective_update_active = sg_maxmin_selective_update;
+ l->selective_update_active = selective_update;
+ l->visited_counter = 1;
XBT_DEBUG("Setting selective_update_active flag to %d\n",
l->selective_update_active);
XBT_INLINE void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var)
{
int i;
+ int n;
+
lmm_element_t elem = NULL;
XBT_IN("(sys=%p, var=%p)", sys, var);
sys->modified = 1;
+ n = 0;
for (i = 0; i < var->cnsts_number; i++) {
elem = &var->cnsts[i];
xbt_swag_remove(elem, &(elem->constraint->element_set));
xbt_swag_remove(elem, &(elem->constraint->active_element_set));
if (!xbt_swag_size(&(elem->constraint->element_set)))
make_constraint_inactive(sys, elem->constraint);
- else
- lmm_update_modified_set(sys, elem->constraint);
+ else {
+ if (n < i)
+ var->cnsts[n].constraint = elem->constraint;
+ n++;
+ }
+ }
+ if (n) {
+ var->cnsts_number = n;
+ lmm_update_modified_set(sys, var->cnsts[0].constraint);
}
+
var->cnsts_number = 0;
XBT_OUT();
}
{
/* xbt_assert(xbt_swag_size(&(cnst->element_set)), */
/* "This list should be empty!"); */
- remove_active_constraint(sys, cnst);
+ make_constraint_inactive(sys, cnst);
free(cnst);
}
xbt_free(var);
}
-static void lmm_variable_mallocator_reset_f(void *var)
-{
- /* lmm_variable_new() initializes everything */
-}
-
lmm_variable_t lmm_variable_new(lmm_system_t sys, void *id,
double weight,
double bound, int number_of_constraints)
var->weight = weight;
var->bound = bound;
var->value = 0.0;
-
+ var->visited = sys->visited_counter - 1;
var->mu = 0.0;
var->new_mu = 0.0;
var->func_f = func_f_def;
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,
trace_buf =
xbt_realloc(trace_buf, strlen(trace_buf) + strlen(print_buf) + 1);
strcat(trace_buf, print_buf);
- fprintf(stderr, "%s", trace_buf);
- //XBT_DEBUG("%20s", trace_buf); FIXME
+ XBT_DEBUG("%20s", trace_buf);
trace_buf[0] = '\000';
XBT_DEBUG("Constraints");
strlen(trace_buf) + strlen(print_buf) + 1);
strcat(trace_buf, print_buf);
}
- // XBT_DEBUG("%s", trace_buf);
- fprintf(stderr, "%s\n", trace_buf);
+ XBT_DEBUG("%s", trace_buf);
trace_buf[0] = '\000';
xbt_assert(!double_positive(sum - cnst->bound),
"Incorrect value (%f is not smaller than %f): %g",
cnst->usage = elem->value / elem->variable->weight;
make_elem_active(elem);
- if(keep_track){
- xbt_swag_insert((elem->variable)->id, keep_track);
- }
+ if (sys->keep_track)
+ xbt_swag_insert(elem->variable->id, sys->keep_track);
}
}
XBT_DEBUG("Constraint Usage '%d' : %f", cnst->id_int, cnst->usage);
}
/* Find out which variables reach the maximum */
- cnst_list =
- sys->selective_update_active ? &(sys->modified_constraint_set) :
- &(sys->active_constraint_set);
min_usage = -1;
min_bound = -1;
xbt_swag_foreach(cnst, cnst_list) {
void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var,
double bound)
{
- int i;
-
sys->modified = 1;
var->bound = bound;
- for (i = 0; i < var->cnsts_number; i++)
- lmm_update_modified_set(sys, var->cnsts[i].constraint);
-
+ if (var->cnsts_number)
+ lmm_update_modified_set(sys, var->cnsts[0].constraint);
}
else
xbt_swag_insert_at_tail(elem, &(elem->constraint->element_set));
- lmm_update_modified_set(sys, elem->constraint);
+ if (i == 0)
+ lmm_update_modified_set(sys, elem->constraint);
}
if (!weight)
var->value = 0.0;
* constraints that have changed. Each constraint change is propagated
* to the list of constraints for each variable.
*/
-static void lmm_update_modified_set(lmm_system_t sys,
- lmm_constraint_t cnst)
+static void lmm_update_modified_set_rec(lmm_system_t sys,
+ lmm_constraint_t cnst)
{
- lmm_element_t elem = NULL;
- lmm_variable_t var = NULL;
- xbt_swag_t elem_list = NULL;
- int i;
-
- /* return if selective update isn't active */
- if (!sys->selective_update_active)
- return;
-
- //XBT_DEBUG("Updating modified constraint set with constraint %d", cnst->id_int);
-
- if (xbt_swag_belongs(cnst, &(sys->modified_constraint_set)))
- return;
-
- //XBT_DEBUG("Inserting into modified constraint set %d", cnst->id_int);
-
- /* add to modified set */
- xbt_swag_insert(cnst, &(sys->modified_constraint_set));
+ lmm_element_t elem;
- elem_list = &(cnst->element_set);
- xbt_swag_foreach(elem, elem_list) {
- var = elem->variable;
- for (i = 0; i < var->cnsts_number; i++)
- if (cnst != var->cnsts[i].constraint) {
- //XBT_DEBUG("Updating modified %d calling for %d", cnst->id_int, var->cnsts[i].constraint->id_int);
- lmm_update_modified_set(sys, var->cnsts[i].constraint);
+ xbt_swag_foreach(elem, &cnst->element_set) {
+ lmm_variable_t var = elem->variable;
+ s_lmm_element_t *cnsts = var->cnsts;
+ int i;
+ for (i = 0; var->visited != sys->visited_counter
+ && i < var->cnsts_number ; i++) {
+ if (cnsts[i].constraint != cnst
+ && !xbt_swag_belongs(cnsts[i].constraint,
+ &sys->modified_constraint_set)) {
+ xbt_swag_insert(cnsts[i].constraint, &sys->modified_constraint_set);
+ lmm_update_modified_set_rec(sys, cnsts[i].constraint);
}
+ }
+ var->visited = sys->visited_counter;
+ }
+}
+
+static void lmm_update_modified_set(lmm_system_t sys,
+ lmm_constraint_t cnst)
+{
+ /* nothing to do if selective update isn't active */
+ if (sys->selective_update_active
+ && !xbt_swag_belongs(cnst, &sys->modified_constraint_set)) {
+ xbt_swag_insert(cnst, &sys->modified_constraint_set);
+ lmm_update_modified_set_rec(sys, cnst);
}
}
*/
static void lmm_remove_all_modified_set(lmm_system_t sys)
{
- lmm_element_t elem = NULL;
- lmm_element_t elem_next = NULL;
- xbt_swag_t elem_list = NULL;
-
- elem_list = &(sys->modified_constraint_set);
- xbt_swag_foreach_safe(elem, elem_next, elem_list) {
- xbt_swag_remove(elem, elem_list);
+ if (++sys->visited_counter == 1) {
+ /* the counter wrapped around, reset each variable->visited */
+ lmm_variable_t var;
+ xbt_swag_foreach(var, &sys->variable_set)
+ var->visited = 0;
}
+ xbt_swag_reset(&sys->modified_constraint_set);
}