From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Wed, 12 Feb 2020 10:13:58 +0000 (+0100)
Subject: Avoid calling into MPI functions with MinMaxAvg in serial
X-Git-Tag: v9.2.0-rc1~527^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F9519%2Fhead;p=dealii.git

Avoid calling into MPI functions with MinMaxAvg in serial
---

diff --git a/source/base/mpi.cc b/source/base/mpi.cc
index c7c46c4021..52a214484c 100644
--- a/source/base/mpi.cc
+++ b/source/base/mpi.cc
@@ -570,6 +570,7 @@ namespace Utilities
               result[i].min_index = 0;
               result[i].max_index = 0;
             }
+          return;
         }
 
       AssertDimension(Utilities::MPI::min(my_values.size(), mpi_communicator),