-/* Copyright (c) 2004-2021. The SimGrid Team.
+/* Copyright (c) 2004-2023. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
#include "smpi_host.hpp"
#include "private.hpp"
#include "simgrid/s4u/Engine.hpp"
+#include "simgrid/s4u/Barrier.hpp"
#include "smpi_comm.hpp"
#include <map>
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(smpi);
-namespace simgrid {
-namespace smpi {
-namespace app {
+namespace simgrid::smpi::app {
static int universe_size = 0;
auto* group = new simgrid::smpi::Group(size_);
comm_world_ = new simgrid::smpi::Comm(group, nullptr, false, -1);
universe_size += max_no_processes;
+ bar_ = s4u::Barrier::create(size_);
}
-
+ s4u::BarrierPtr bar_;
unsigned int size_;
unsigned int finalized_ranks_ = 0;
MPI_Comm comm_world_;
};
-}
-}
-}
+} // namespace simgrid::smpi::app
using simgrid::smpi::app::Instance;
if (code != nullptr) // When started with smpirun, we will not execute a function
simgrid::s4u::Engine::get_instance()->register_function(name, code);
- Instance instance(num_processes);
-
- smpi_instances.insert(std::pair<std::string, Instance>(name, instance));
+ smpi_instances.try_emplace(name, num_processes);
}
void smpi_deployment_register_process(const std::string& instance_id, int rank, const simgrid::s4u::Actor* actor)
instance.comm_world_->group()->set_mapping(actor->get_pid(), rank);
}
+void smpi_deployment_startup_barrier(const std::string& instance_id)
+{
+ const Instance& instance = smpi_instances.at(instance_id);
+ instance.bar_->wait();
+}
+
void smpi_deployment_unregister_process(const std::string& instance_id)
{
Instance& instance = smpi_instances.at(instance_id);
}
void smpi_deployment_cleanup_instances(){
- for (auto const& item : smpi_instances) {
- XBT_INFO("Stalling SMPI instance: %s. Do all your MPI ranks call MPI_Finalize()?", item.first.c_str());
- Instance instance = item.second;
+ for (auto const& [name, instance] : smpi_instances) {
+ XBT_INFO("Stalling SMPI instance: %s. Do all your MPI ranks call MPI_Finalize()?", name.c_str());
simgrid::smpi::Comm::destroy(instance.comm_world_);
}
smpi_instances.clear();