From 15bb0fe054992743a15b79ceecebcab2a062e965 Mon Sep 17 00:00:00 2001
From: Peter Munch <peterrmuench@gmail.com>
Date: Fri, 18 Oct 2019 23:44:32 +0200
Subject: [PATCH] Fix ConsensusAlgorithm_NBX

---
 include/deal.II/base/mpi.h | 4 ++--
 source/base/mpi.cc         | 7 ++++---
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/include/deal.II/base/mpi.h b/include/deal.II/base/mpi.h
index e144aea01e..294994e744 100644
--- a/include/deal.II/base/mpi.h
+++ b/include/deal.II/base/mpi.h
@@ -941,12 +941,12 @@ namespace Utilities
       /**
        * Buffers for sending answers to requests.
        */
-      std::vector<std::vector<T2>> request_buffers;
+      std::vector<std::unique_ptr<std::vector<T2>>> request_buffers;
 
       /**
        * Requests for sending answers to requests.
        */
-      std::vector<std::shared_ptr<MPI_Request>> request_requests;
+      std::vector<std::unique_ptr<MPI_Request>> request_requests;
 
       // request for barrier
       MPI_Request barrier_request;
diff --git a/source/base/mpi.cc b/source/base/mpi.cc
index 0050303b5f..0e05f412ce 100644
--- a/source/base/mpi.cc
+++ b/source/base/mpi.cc
@@ -1011,11 +1011,12 @@ namespace Utilities
           AssertThrowMPI(ierr);
 
           // allocate memory for answer message
-          request_buffers.emplace_back();
-          request_requests.emplace_back(new MPI_Request);
+          request_buffers.emplace_back(
+            std_cxx14::make_unique<std::vector<T2>>());
+          request_requests.emplace_back(std_cxx14::make_unique<MPI_Request>());
 
           // process request
-          auto &request_buffer = request_buffers.back();
+          auto &request_buffer = *request_buffers.back();
           this->process.process_request(other_rank,
                                         buffer_recv,
                                         request_buffer);
-- 
2.39.5