From ad39cda34df59598dcc21f2a5951811495728a3a Mon Sep 17 00:00:00 2001
From: Timo Koch <timo.koch@iws.uni-stuttgart.de>
Date: Tue, 31 Mar 2020 15:06:29 +0200
Subject: [PATCH] [istlfactory] Only construct parallel helper if MPI is found
---
dumux/linear/istlsolverfactorybackend.hh | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/dumux/linear/istlsolverfactorybackend.hh b/dumux/linear/istlsolverfactorybackend.hh
index fa96f2e425..71e330eb9c 100644
--- a/dumux/linear/istlsolverfactorybackend.hh
+++ b/dumux/linear/istlsolverfactorybackend.hh
@@ -85,8 +85,10 @@ public:
const typename LinearSolverTraits::DofMapper& dofMapper,
const std::string& paramGroup = "")
: paramGroup_(paramGroup)
+#if HAVE_MPI
, parallelHelper_(std::make_unique<ParallelISTLHelper<LinearSolverTraits>>(gridView, dofMapper))
, isParallel_(Dune::MPIHelper::getCollectiveCommunication().size() > 1)
+#endif
{
reset();
}
@@ -227,8 +229,10 @@ private:
}
const std::string paramGroup_;
+#if HAVE_MPI
std::unique_ptr<ParallelISTLHelper<LinearSolverTraits>> parallelHelper_;
- bool isParallel_;
+#endif
+ bool isParallel_ = false;
bool firstCall_;
Dune::InverseOperatorResult result_;
--
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