Drop unused smpi/plugins/load_balancer.

[simgrid.git] / src / smpi / plugins / load_balancer / load_balancer.hpp

diff --git a/src/smpi/plugins/load_balancer/load_balancer.hpp b/src/smpi/plugins/load_balancer/load_balancer.hpp
deleted file mode 100644 (file)
index 69b2dae..0000000
--- a/src/smpi/plugins/load_balancer/load_balancer.hpp
+++ /dev/null
@@ -1,80 +0,0 @@
-/* Copyright (c) 2006-2019. The SimGrid Team. All rights reserved.          */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef HAVE_SG_PLUGIN_LB
-#define HAVE_SG_PLUGIN_LB
-
-#include <simgrid/s4u.hpp>
-
-namespace simgrid {
-namespace plugin {
-namespace loadbalancer {
-
-class XBT_PRIVATE Mapping {
-public:
-  Mapping() = default;
-  ~Mapping() = default;
-  /** Each host can have an arbitrary number of actors -> multimap **/
-  typedef std::unordered_multimap<simgrid::s4u::Host*, simgrid::s4u::ActorPtr> host_to_actors_map_t;
-  host_to_actors_map_t host_to_actors;
-
-  /** Each actor gets assigned to exactly one host -> map **/
-  std::map<simgrid::s4u::ActorPtr, simgrid::s4u::Host*> actor_to_host;
-
-  void assign(simgrid::s4u::ActorPtr actor, simgrid::s4u::Host* host)
-  {
-    /* Remove "actor" from its old host -> get all elements that have the current host as key **/
-    auto range = host_to_actors.equal_range(/* current host */actor_to_host[actor]);
-    for (auto it = range.first; it != range.second; it++) {
-      if (it->second == actor) {
-        host_to_actors.erase(it); // unassign this actor
-        break;
-      }
-    }
-
-    actor_to_host[actor] = host;
-    host_to_actors.insert({host, actor});
-  }
-
-  simgrid::s4u::Host* get_host(simgrid::s4u::ActorPtr actor) { return actor_to_host[actor]; }
-
-  unsigned int count_actors(simgrid::s4u::Host* host)
-  {
-    return host_to_actors.count(host); // TODO This is linear in the size of the map. Maybe replace by constant lookup through another map?
-  }
-
-  void for_each_actor(simgrid::s4u::Host* host, const std::function<void(simgrid::s4u::ActorPtr)>& callback)
-  {
-    auto range = host_to_actors.equal_range(host);
-    std::for_each(
-        range.first,
-        range.second,
-        [&callback](host_to_actors_map_t::value_type& x) { callback(x.second); }
-    );
-  }
-};
-
-class XBT_PRIVATE LoadBalancer
-{
-  Mapping new_mapping;
-  std::map</*proc id*/int, double> actor_computation;
-
-public:
-  LoadBalancer();
-  ~LoadBalancer();
-  void run();
-  void assign(simgrid::s4u::ActorPtr actor, simgrid::s4u::Host* host);
-  
-  /**
-   * FIXME These are functions used for testing and should be re-written or removed
-   */
-  simgrid::s4u::Host* get_mapping(simgrid::s4u::ActorPtr);
-  void record_actor_computation(simgrid::s4u::ActorPtr actor, double load);
-};
-
-}
-}
-}
-#endif