From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Sat, 10 Mar 2018 06:22:05 +0000 (+0100)
Subject: Remove use of MPI_COMM_WORLD in serial Trilinos vector.
X-Git-Tag: v9.0.0-rc1~346^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F6024%2Fhead;p=dealii.git

Remove use of MPI_COMM_WORLD in serial Trilinos vector.
---

diff --git a/include/deal.II/lac/constraint_matrix.templates.h b/include/deal.II/lac/constraint_matrix.templates.h
index 4c732d2e2f..4428968c05 100644
--- a/include/deal.II/lac/constraint_matrix.templates.h
+++ b/include/deal.II/lac/constraint_matrix.templates.h
@@ -769,7 +769,7 @@ namespace internal
       Assert (mpi_comm != nullptr, ExcInternalError());
       output.reinit (needed_elements, mpi_comm->GetMpiComm());
 #else
-      output.reinit (needed_elements, MPI_COMM_WORLD);
+      output.reinit (needed_elements, MPI_COMM_SELF);
 #endif
       output = vec;
     }