+typedef simgrid::smpi::Datatype SMPI_Datatype;
+typedef simgrid::smpi::Group SMPI_Group;
+typedef simgrid::smpi::Info SMPI_Info;
+typedef simgrid::smpi::Op SMPI_Op;
+typedef simgrid::smpi::Process SMPI_Process;
+typedef simgrid::smpi::Request SMPI_Request;