Fix MPI issue with workaround

EESSI · Dec 5, 2024 · aff54e2 · aff54e2
1 parent 1926b12
commit aff54e2
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/config/azure_mc.py b/config/azure_mc.py
@@ -34,6 +34,11 @@
                     'access': ['--partition=x86-64-amd-zen4-node', '--export=NONE'],
                     'descr': 'Zen4, 16 cores, 30 GB',
                     'prepare_cmds': [
+                        # Avoid https://www.eessi.io/docs/known_issues/eessi-2023.06/#eessi-production-repository-v202306 
+                        'export OMPI_MCA_btl=^uct,ofi'
+                        'export OMPI_MCA_pml=ucx'
+                        'export OMPI_MCA_mtl=^ofi'
+                        # Use override to avoid fallback to zen3
                         'export EESSI_SOFTWARE_SUBDIR_OVERRIDE=x86_64/amd/zen4',
                         common_eessi_init(),
                         # Required when using srun as launcher with --export=NONE in partition access,