From 44284fc96b5e3a861006ab00952acc416ff76448 Mon Sep 17 00:00:00 2001
From: Marcel Koch <marcel.koch@kit.edu>
Date: Wed, 14 Feb 2024 19:04:46 +0000
Subject: [PATCH] create owning communicator

---
 include/ginkgo/core/base/mpi.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/ginkgo/core/base/mpi.hpp b/include/ginkgo/core/base/mpi.hpp
index 64c04e1805a..636296465a2 100644
--- a/include/ginkgo/core/base/mpi.hpp
+++ b/include/ginkgo/core/base/mpi.hpp
@@ -454,6 +454,14 @@ class communicator {
         this->comm_.reset(new MPI_Comm(comm_out), comm_deleter{});
     }
 
+    static communicator create_owning(const MPI_Comm& comm,
+                                      bool force_host_buffer = false)
+    {
+        communicator comm_out(MPI_COMM_NULL, force_host_buffer);
+        comm_out.comm_.reset(new MPI_Comm(comm), comm_deleter{});
+        return comm_out;
+    }
+
     /**
      * Return the underlying MPI_Comm object.
      *