#include <algorithm>
#include <tr1/functional>
#include <iterator>
+#include <numeric>
#include <stdexcept>
#include <sstream>
#include <xbt/log.h>
++lb_iter;
}
+ if (!opt::bookkeeping)
+ expected_load = real_load - get_sum_of_to_send();
+ // nothing to do with opt::bookkeeping
+
if (opt::log_rate && lb_iter % opt::log_rate == 0) {
XBT_INFO("(%u:%u) current load: %g", lb_iter, comp_iter, real_load);
XBT_VERB("... expected load: %g", expected_load);
}
- if (get_load() > 0.0)
+ if (expected_load > 0.0)
load_balance();
print_loads(true, xbt_log_priority_debug);
// send
std::for_each(neigh.begin(), neigh.end(),
bind(&process::ctrl_send, this, _1));
- prev_load_broadcast = get_load();
+ prev_load_broadcast = expected_load;
sleep_until_date(next_iter_after_date, opt::min_lb_iter_duration);
ctrl_receive(0.0);
return last_status;
}
+double process::get_sum_of_to_send() const
+{
+ using std::tr1::bind;
+ using std::tr1::placeholders::_1;
+ using std::tr1::placeholders::_2;
+
+ return std::accumulate(neigh.begin(), neigh.end(), 0.0,
+ bind(std::plus<double>(),
+ _1, bind(&neighbor::get_to_send, _2)));
+}
+
void process::load_balance()
{
if (lb_iter == 1) // warn only once
void process::send(neighbor& nb, double amount)
{
- set_load(get_load() - amount);
+ expected_load -= amount;
nb.set_to_send(nb.get_to_send() + amount);
nb.set_load(nb.get_load() + amount);
}
void process::ctrl_send(neighbor& nb)
{
- double info_to_send = get_load();
+ double info_to_send = expected_load;
if (info_to_send != prev_load_broadcast)
comm.ctrl_send(nb.get_ctrl_mbox(),
new message(message::INFO, info_to_send));
} else {
load_to_send = nb.get_to_send();
nb.set_to_send(0.0);
- // do not update real_load here
+ real_load -= load_to_send;
}
if (load_to_send > 0.0)
comm.data_send(nb.get_data_mbox(),
switch (msg->get_type()) {
case message::INFO: {
neighbor* n = rev_neigh[from];
- n->set_load(msg->get_amount());
+ n->set_load(msg->get_amount() + n->get_to_send());
break;
}
case message::CREDIT: