MED33 porting

[tools/medcoupling.git] / src / ParaMEDMEM / InterpKernelDEC.cxx

diff --git a/src/ParaMEDMEM/InterpKernelDEC.cxx b/src/ParaMEDMEM/InterpKernelDEC.cxx
index 61518d26858bad9708afa6c267de690006341e2d..ccf6571c0b485c036abf3cbdf716845fee46b2a3 100644 (file)
--- a/src/ParaMEDMEM/InterpKernelDEC.cxx
+++ b/src/ParaMEDMEM/InterpKernelDEC.cxx
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2015  CEA/DEN, EDF R&D
+// Copyright (C) 2007-2016  CEA/DEN, EDF R&D
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
@@ -141,6 +141,8 @@ namespace MEDCoupling
     This constructor creates an InterpKernelDEC which has \a source_group as a working side 
     and  \a target_group as an idle side. All the processors will actually participate, but intersection computations will be performed on the working side during the \a synchronize() phase.
     The constructor must be called synchronously on all processors of both processor groups.
+    The source group and target group MUST form a partition of all the procs within the communicator passed as 'world_comm'
+    when building the group.
 
     \param source_group working side ProcessorGroup
     \param target_group lazy side ProcessorGroup
@@ -154,6 +156,12 @@ namespace MEDCoupling
 
   }
 
+
+  /*!
+   * Creates an InterpKernelDEC from a set of source procs IDs and target group IDs.
+   * The difference with the ctor using groups is that the set of procs might not cover entirely MPI_COMM_WORLD
+   * (a sub-communicator holding the union of source and target procs is recreated internally).
+   */
   InterpKernelDEC::InterpKernelDEC(const std::set<int>& src_ids, const std::set<int>& trg_ids,
                                    const MPI_Comm& world_comm):
     DisjointDEC(src_ids,trg_ids,world_comm),