-#include "loba_fairstrategy.h"
-#include <algorithm>
#include <xbt/log.h>
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(loba);
-/* simple version:
- * load balance with a least-loaded neighbor,
- * without breaking the ping-pong condition
- */
-
-class compare {
-public :
- bool operator()(const neighbor*a, const neighbor*b) {
- return a->get_load()>b->get_load();
- }
-};
+#include "loba_fairstrategy.h"
-double loba_fairstrategy::load_balance(double my_load)
+void loba_fairstrategy::load_balance()
{
- int imin = -1;
- int imax = -1;
- double min = my_load;
- double max = -1.0;
-
- std::sort(pneigh.begin(),pneigh.end(),compare());
-
- //print_loads();
-
- INFO0("list voisins");
- for(unsigned i=0;i< pneigh.size() ; ++i) {
- INFO2("%s %f ", pneigh[i]->get_name(), pneigh[i]->get_load());
- }
-
- double sum_sent=0;
- bool found=true;
-
- while(found) {
- found=false;
- for (unsigned i = 0 ; i < pneigh.size() ; ++i) {
- double l = pneigh[i]->get_load();
- if (l >= my_load)
- continue;
- if(l<my_load+2) {
- found=true;
- pneigh[i]->set_load(l+1);
- pneigh[i]->add_to_send(1);
- INFO1("sent to %s",pneigh[i]->get_name());
- my_load--;
- sum_sent++;
- }
- }
- }
-
-
-
- return sum_sent;
-
+ pneigh_sort_by_load(std::greater<double>());
+ print_loads_p(false, xbt_log_priority_debug);
+
+ const double delta = 0.001;
+ bool found = true;
+ while (found) {
+ found = false;
+ for (unsigned i = 0 ; i < pneigh.size() ; ++i) {
+ if (pneigh[i]->get_load() <= get_load() - 2 * delta) {
+ found = true;
+ send(pneigh[i], delta);
+ XBT_DEBUG("sent to %s", pneigh[i]->get_name());
+ }
+ }
+ }
}
// Local variables:
