From 32645445be0ca39f00cd62d581d0dd991eb4f8da Mon Sep 17 00:00:00 2001
From: Matthew Whitlock <mwhitlo@sandia.gov>
Date: Thu, 16 Oct 2025 07:37:44 -0700
Subject: [PATCH] More reliable MCA parameters in CI tests

---
 .github/docker-compose.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/docker-compose.yml b/.github/docker-compose.yml
index 2212b0c..5291752 100644
--- a/.github/docker-compose.yml
+++ b/.github/docker-compose.yml
@@ -41,6 +41,9 @@ services:
                 -DBUILD_TESTING=ON \
                 -DMPIEXEC_PREFLAGS="--allow-run-as-root;--map-by;:oversubscribe" && \
             make -j
+
+        ENV OMPI_MCA_coll=^han
+        ENV OMPI_MCA_btl=tcp,sm,self
         
         WORKDIR /fenix/build
         ENTRYPOINT ["/entrypoint.sh"]