From e4aa3d3223457888236d1ec3c75084c6d87fef49 Mon Sep 17 00:00:00 2001
From: thorstenhater <24411438+thorstenhater@users.noreply.github.com>
Date: Mon, 15 Feb 2021 08:41:35 +0100
Subject: [PATCH] Workaround for MacOS+OpenMPI4 (#1375)
Use TCP BTL for MPI in GitHub Actions to fix sporadic SEGFAULT on MacOS.
See open-mpi/ompi#6518
---
.github/workflows/basic.yml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/.github/workflows/basic.yml b/.github/workflows/basic.yml
index cb9e80e7..ecabaf8e 100644
--- a/.github/workflows/basic.yml
+++ b/.github/workflows/basic.yml
@@ -88,6 +88,9 @@ jobs:
CXX: ${{ matrix.config.cxx }}
# We set PYTHONPATH instead of installing arbor to avoid distribution/OS specific behaviour.
PYTHONPATH: ${{ github.workspace }}/build/python
+ # This is a workaround for the unfortunate interaction of MacOS and OpenMPI 4
+ # See https://github.com/open-mpi/ompi/issues/6518
+ OMPI_MCA_btl: "self,tcp"
steps:
- name: Set up cmake
uses: jwlawson/actions-setup-cmake@v1.7
--
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