X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/aa419088c69d4d8398fd921eebcc3a83f5d0d789..a976ff26ca5afba53350d9ed449c122b52972824:/src/smpi/mpi/smpi_comm.cpp

diff --git a/src/smpi/mpi/smpi_comm.cpp b/src/smpi/mpi/smpi_comm.cpp
index 4652d05c70..2a80d4cd06 100644
--- a/src/smpi/mpi/smpi_comm.cpp
+++ b/src/smpi/mpi/smpi_comm.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2010-2017. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2010-2018. 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. */
@@ -12,7 +12,9 @@
 #include "smpi_request.hpp"
 #include "smpi_status.hpp"
 #include "smpi_win.hpp"
+#include "src/simix/smx_host_private.hpp"
 #include "src/simix/smx_private.hpp"
+
 #include <algorithm>
 #include <climits>
 #include <vector>
@@ -56,8 +58,9 @@ void Comm::destroy(Comm* comm)
 }
 
 int Comm::dup(MPI_Comm* newcomm){
-  if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP){ //we need to switch as the called function may silently touch global variables
-    smpi_switch_data_segment(simgrid::s4u::Actor::self()->getPid());
+  if (smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) {
+    // we need to switch as the called function may silently touch global variables
+    smpi_switch_data_segment(simgrid::s4u::Actor::self());
   }
   MPI_Group cp = new  Group(this->group());
   (*newcomm)   = new  Comm(cp, this->topo());
@@ -262,10 +265,8 @@ void Comm::cleanup_smp(){
     Comm::unref(intra_comm_);
   if (leaders_comm_ != MPI_COMM_NULL)
     Comm::unref(leaders_comm_);
-  if (non_uniform_map_ != nullptr)
-    xbt_free(non_uniform_map_);
-  if (leaders_map_ != nullptr)
-    delete[] leaders_map_;
+  xbt_free(non_uniform_map_);
+  delete[] leaders_map_;
 }
 
 void Comm::unref(Comm* comm){
@@ -299,8 +300,9 @@ void Comm::init_smp(){
     smpi_process()->set_replaying(false);
   }
 
-  if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP){ //we need to switch as the called function may silently touch global variables
-    smpi_switch_data_segment(simgrid::s4u::Actor::self()->getPid());
+  if (smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) {
+    // we need to switch as the called function may silently touch global variables
+    smpi_switch_data_segment(simgrid::s4u::Actor::self());
   }
   //identify neighbours in comm
   //get the indices of all processes sharing the same simix host
@@ -335,8 +337,9 @@ void Comm::init_smp(){
 
   Coll_allgather_mpich::allgather(&leader, 1, MPI_INT , leaders_map, 1, MPI_INT, this);
 
-  if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP){ //we need to switch as the called function may silently touch global variables
-    smpi_switch_data_segment(simgrid::s4u::Actor::self()->getPid());
+  if (smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) {
+    // we need to switch as the called function may silently touch global variables
+    smpi_switch_data_segment(simgrid::s4u::Actor::self());
   }
 
   if(leaders_map_==nullptr){
@@ -365,7 +368,7 @@ void Comm::init_smp(){
   if(MPI_COMM_WORLD!=MPI_COMM_UNINITIALIZED && this!=MPI_COMM_WORLD){
     //create leader_communicator
     for (i=0; i< leader_group_size;i++)
-      leaders_group->set_mapping(simgrid::s4u::Actor::byPid(leader_list[i]), i);
+      leaders_group->set_mapping(simgrid::s4u::Actor::by_pid(leader_list[i]), i);
     leader_comm = new  Comm(leaders_group, nullptr);
     this->set_leaders_comm(leader_comm);
     this->set_intra_comm(comm_intra);
@@ -373,7 +376,7 @@ void Comm::init_smp(){
     // create intracommunicator
   }else{
     for (i=0; i< leader_group_size;i++)
-      leaders_group->set_mapping(simgrid::s4u::Actor::byPid(leader_list[i]), i);
+      leaders_group->set_mapping(simgrid::s4u::Actor::by_pid(leader_list[i]), i);
 
     if(this->get_leaders_comm()==MPI_COMM_NULL){
       leader_comm = new  Comm(leaders_group, nullptr);
@@ -407,8 +410,9 @@ void Comm::init_smp(){
   }
   Coll_bcast_mpich::bcast(&(is_uniform_),1, MPI_INT, 0, comm_intra );
 
-  if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP){ //we need to switch as the called function may silently touch global variables
-    smpi_switch_data_segment(simgrid::s4u::Actor::self()->getPid());
+  if (smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) {
+    // we need to switch as the called function may silently touch global variables
+    smpi_switch_data_segment(simgrid::s4u::Actor::self());
   }
   // Are the ranks blocked ? = allocated contiguously on the SMP nodes
   int is_blocked=1;
@@ -485,6 +489,17 @@ void Comm::finish_rma_calls(){
   }
 }
 
+MPI_Comm Comm::split_type(int type, int key, MPI_Info info)
+{
+  if(type != MPI_COMM_TYPE_SHARED){
+    return MPI_COMM_NULL;
+  }
+  this->init_smp();
+  this->ref();
+  this->get_intra_comm()->ref();
+  return this->get_intra_comm();
+}
+
 }
 }