From 598e9fa10226f3b73beb8ef64dc064bf57910fec Mon Sep 17 00:00:00 2001
From: Markus Blatt <markus@dr-blatt.de>
Date: Thu, 2 Sep 2021 13:09:32 +0200
Subject: [PATCH] [bugfix] Fix sequential run after #979

Definition of the communicator was moved inside a
`#if HAVE_MPI` there. This commit queries the
communicator again below to fix this.
---
 opm/simulators/utils/readDeck.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/opm/simulators/utils/readDeck.cpp b/opm/simulators/utils/readDeck.cpp
index 42550d686..3557f42a7 100644
--- a/opm/simulators/utils/readDeck.cpp
+++ b/opm/simulators/utils/readDeck.cpp
@@ -352,7 +352,7 @@ void readDeck(int rank, std::string& deckFilename, std::unique_ptr<Opm::Deck>& d
         errorGuard->clear();
     }
 
-    parseSuccess = comm.min(parseSuccess);
+    parseSuccess = Dune::MPIHelper::getCollectiveCommunication().min(parseSuccess);
 
     if (!parseSuccess)
     {