From d41292b2f369e1e5278a3e2f878577d39cb110c5 Mon Sep 17 00:00:00 2001
From: Timo Heister <timo.heister@gmail.com>
Date: Wed, 21 Sep 2022 14:51:46 -0400
Subject: [PATCH] use correct MPI type

---
 source/base/data_out_base.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/base/data_out_base.cc b/source/base/data_out_base.cc
index 6108f64768..62530545c9 100644
--- a/source/base/data_out_base.cc
+++ b/source/base/data_out_base.cc
@@ -8271,7 +8271,7 @@ DataOutInterface<dim, spacedim>::create_xdmf_entry(
         {
           // send to rank 0
           const std::vector<char> buffer = Utilities::pack(entry, false);
-          ierr = MPI_Send(buffer.data(), buffer.size(), MPI_CHAR, 0, tag, comm);
+          ierr = MPI_Send(buffer.data(), buffer.size(), MPI_BYTE, 0, tag, comm);
           AssertThrowMPI(ierr);
 
           return {};
-- 
2.39.5