From: Daniel Arndt <arndtd@ornl.gov>
Date: Sat, 6 Feb 2021 20:43:41 +0000 (-0500)
Subject: Use MPI_COMM_SELF
X-Git-Tag: v9.3.0-rc1~489^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F11701%2Fhead;p=dealii.git

Use MPI_COMM_SELF
---

diff --git a/include/deal.II/sundials/n_vector.templates.h b/include/deal.II/sundials/n_vector.templates.h
index e7b50b5dae..55e08e77d0 100644
--- a/include/deal.II/sundials/n_vector.templates.h
+++ b/include/deal.II/sundials/n_vector.templates.h
@@ -492,7 +492,7 @@ template <typename VectorType,
           std::enable_if_t<is_serial_vector<VectorType>::value, int>>
 MPI_Comm SUNDIALS::internal::NVectorOperations::get_communicator(N_Vector)
 {
-  return {};
+  return MPI_COMM_SELF;
 }