#include "src/kernel/lmm/maxmin.hpp"
#include <boost/core/demangle.hpp>
+#include <typeinfo>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_maxmin, surf, "Logging specific to SURF (maxmin)");
simgrid::xbt::intrusive_erase(elem.constraint->disabled_element_set_, elem);
if (elem.active_element_set_hook.is_linked())
simgrid::xbt::intrusive_erase(elem.constraint->active_element_set_, elem);
- int nelements = elem.constraint->enabled_element_set_.size() + elem.constraint->disabled_element_set_.size();
- if (nelements == 0)
+ if (elem.constraint->enabled_element_set_.empty() && elem.constraint->disabled_element_set_.empty())
make_constraint_inactive(elem.constraint);
else
on_disabled_var(elem.constraint);
xbt_assert(var->cnsts_.size() < var->cnsts_.capacity(), "Too much constraints");
- var->cnsts_.resize(var->cnsts_.size() + 1);
+ var->cnsts_.emplace_back();
Element& elem = var->cnsts_.back();
elem.consumption_weight = consumption_weight;
if (var->sharing_penalty_ != 0.0)
elem.decrease_concurrency();
- if (cnst->sharing_policy_ != s4u::Link::SharingPolicy::FATPIPE)
+ if (cnst->sharing_policy_ != Constraint::SharingPolicy::FATPIPE)
elem.consumption_weight += value;
else
elem.consumption_weight = std::max(elem.consumption_weight, value);
// if we modify the list between calls, normal version may loop forever
// this safe version ensures that we browse the list elements only once
-Variable* Constraint::get_variable_safe(const Element** elem, const Element** nextelem, int* numelem) const
+Variable* Constraint::get_variable_safe(const Element** elem, const Element** nextelem, size_t* numelem) const
{
if (*elem == nullptr) {
*numelem = enabled_element_set_.size() + disabled_element_set_.size() - 1;
}
template <class ElemList>
-static void format_element_list(const ElemList& elem_list, s4u::Link::SharingPolicy sharing_policy, double& sum,
+static void format_element_list(const ElemList& elem_list, Constraint::SharingPolicy sharing_policy, double& sum,
std::string& buf)
{
for (Element const& elem : elem_list) {
buf += std::to_string(elem.consumption_weight) + ".'" + std::to_string(elem.variable->rank_) + "'(" +
std::to_string(elem.variable->value_) + ")" +
- (sharing_policy != s4u::Link::SharingPolicy::FATPIPE ? " + " : " , ");
- if (sharing_policy != s4u::Link::SharingPolicy::FATPIPE)
+ (sharing_policy != Constraint::SharingPolicy::FATPIPE ? " + " : " , ");
+ if (sharing_policy != Constraint::SharingPolicy::FATPIPE)
sum += elem.consumption_weight * elem.variable->value_;
else
sum = std::max(sum, elem.consumption_weight * elem.variable->value_);
double sum = 0.0;
// Show the enabled variables
buf += "\t";
- buf += cnst.sharing_policy_ != s4u::Link::SharingPolicy::FATPIPE ? "(" : "max(";
+ buf += cnst.sharing_policy_ != Constraint::SharingPolicy::FATPIPE ? "(" : "max(";
format_element_list(cnst.enabled_element_set_, cnst.sharing_policy_, sum, buf);
// TODO: Adding disabled elements only for test compatibility, but do we really want them to be printed?
format_element_list(cnst.disabled_element_set_, cnst.sharing_policy_, sum, buf);
buf += "0) <= " + std::to_string(cnst.bound_) + " ('" + std::to_string(cnst.rank_) + "')";
- if (cnst.sharing_policy_ == s4u::Link::SharingPolicy::FATPIPE) {
+ if (cnst.sharing_policy_ == Constraint::SharingPolicy::FATPIPE) {
buf += " [MAX-Constraint]";
}
XBT_DEBUG("%s", buf.c_str());
for (Constraint& cnst : cnst_list) {
/* INIT: Collect constraints that actually need to be saturated (i.e remaining and usage are strictly positive)
* into cnst_light_tab. */
- cnst.remaining_ = cnst.bound_;
- if (not double_positive(cnst.remaining_, cnst.bound_ * sg_maxmin_precision))
+ cnst.dynamic_bound_ = cnst.bound_;
+ if (cnst.get_sharing_policy() == Constraint::SharingPolicy::NONLINEAR && cnst.dyn_constraint_cb_) {
+ cnst.dynamic_bound_ = cnst.dyn_constraint_cb_(cnst.bound_, cnst.concurrency_current_);
+ }
+ cnst.remaining_ = cnst.dynamic_bound_;
+ if (not double_positive(cnst.remaining_, cnst.dynamic_bound_ * sg_maxmin_precision))
continue;
cnst.usage_ = 0;
for (Element& elem : cnst.enabled_element_set_) {
xbt_assert(elem.variable->sharing_penalty_ > 0.0);
elem.variable->value_ = 0.0;
if (elem.consumption_weight > 0) {
- if (cnst.sharing_policy_ != s4u::Link::SharingPolicy::FATPIPE)
+ if (cnst.sharing_policy_ != Constraint::SharingPolicy::FATPIPE)
cnst.usage_ += elem.consumption_weight / elem.variable->sharing_penalty_;
else if (cnst.usage_ < elem.consumption_weight / elem.variable->sharing_penalty_)
cnst.usage_ = elem.consumption_weight / elem.variable->sharing_penalty_;
/* Update the usage of constraints where this variable is involved */
for (Element& elem : var.cnsts_) {
Constraint* cnst = elem.constraint;
- if (cnst->sharing_policy_ != s4u::Link::SharingPolicy::FATPIPE) {
+ if (cnst->sharing_policy_ != Constraint::SharingPolicy::FATPIPE) {
// Remember: shared constraints require that sum(elem.value * var.value) < cnst->bound
- double_update(&(cnst->remaining_), elem.consumption_weight * var.value_, cnst->bound_ * sg_maxmin_precision);
+ double_update(&(cnst->remaining_), elem.consumption_weight * var.value_,
+ cnst->dynamic_bound_ * sg_maxmin_precision);
double_update(&(cnst->usage_), elem.consumption_weight / var.sharing_penalty_, sg_maxmin_precision);
// If the constraint is saturated, remove it from the set of active constraints (light_tab)
if (not double_positive(cnst->usage_, sg_maxmin_precision) ||
- not double_positive(cnst->remaining_, cnst->bound_ * sg_maxmin_precision)) {
+ not double_positive(cnst->remaining_, cnst->dynamic_bound_ * sg_maxmin_precision)) {
if (cnst->cnst_light_) {
- int index = (cnst->cnst_light_ - cnst_light_tab);
- XBT_DEBUG("index: %d \t cnst_light_num: %d \t || usage: %f remaining: %f bound: %f ", index,
- cnst_light_num, cnst->usage_, cnst->remaining_, cnst->bound_);
+ size_t index = (cnst->cnst_light_ - cnst_light_tab);
+ XBT_DEBUG("index: %zu \t cnst_light_num: %d \t || usage: %f remaining: %f bound: %f ", index,
+ cnst_light_num, cnst->usage_, cnst->remaining_, cnst->dynamic_bound_);
cnst_light_tab[index] = cnst_light_tab[cnst_light_num - 1];
cnst_light_tab[index].cnst->cnst_light_ = &cnst_light_tab[index];
cnst_light_num--;
}
// If the constraint is saturated, remove it from the set of active constraints (light_tab)
if (not double_positive(cnst->usage_, sg_maxmin_precision) ||
- not double_positive(cnst->remaining_, cnst->bound_ * sg_maxmin_precision)) {
+ not double_positive(cnst->remaining_, cnst->dynamic_bound_ * sg_maxmin_precision)) {
if (cnst->cnst_light_) {
- int index = (cnst->cnst_light_ - cnst_light_tab);
- XBT_DEBUG("index: %d \t cnst_light_num: %d \t || \t cnst: %p \t cnst->cnst_light: %p "
+ size_t index = (cnst->cnst_light_ - cnst_light_tab);
+ XBT_DEBUG("index: %zu \t cnst_light_num: %d \t || \t cnst: %p \t cnst->cnst_light: %p "
"\t cnst_light_tab: %p usage: %f remaining: %f bound: %f ",
index, cnst_light_num, cnst, cnst->cnst_light_, cnst_light_tab, cnst->usage_, cnst->remaining_,
- cnst->bound_);
+ cnst->dynamic_bound_);
cnst_light_tab[index] = cnst_light_tab[cnst_light_num - 1];
cnst_light_tab[index].cnst->cnst_light_ = &cnst_light_tab[index];
cnst_light_num--;
}
void Variable::initialize(resource::Action* id_value, double sharing_penalty, double bound_value,
- int number_of_constraints, unsigned visited_value)
+ size_t number_of_constraints, unsigned visited_value)
{
id_ = id_value;
rank_ = next_rank_++;
if (cnstr->get_concurrency_limit() < 0)
return;
- int numelem = cnstr->disabled_element_set_.size();
- if (not numelem)
+ size_t numelem = cnstr->disabled_element_set_.size();
+ if (numelem == 0)
return;
Element* elem = &cnstr->disabled_element_set_.front();
void System::update_variable_penalty(Variable* var, double penalty)
{
xbt_assert(penalty >= 0, "Variable penalty should not be negative!");
-
if (penalty == var->sharing_penalty_)
return;
double Constraint::get_usage() const
{
double result = 0.0;
- if (sharing_policy_ != s4u::Link::SharingPolicy::FATPIPE) {
+ if (sharing_policy_ != SharingPolicy::FATPIPE) {
for (Element const& elem : enabled_element_set_)
if (elem.consumption_weight > 0)
result += elem.consumption_weight * elem.variable->value_;
[](const Element& elem) { return elem.consumption_weight > 0; }));
}
+void Constraint::set_sharing_policy(SharingPolicy policy, const s4u::NonLinearResourceCb& cb)
+{
+ xbt_assert(policy == SharingPolicy::NONLINEAR || not cb,
+ "Invalid sharing policy for constraint. Callback should be used with NONLINEAR sharing policy");
+ sharing_policy_ = policy;
+ dyn_constraint_cb_ = cb;
+}
+
} // namespace lmm
} // namespace kernel
} // namespace simgrid
