ADD: openmpi@main variable requirement

env/sles15/aarch64/admin/stable/spack.yaml

@@ -20,9 +20,8 @@ spack:
   modules:
     default:
       roots:
-        tcl: $spack/opt/spack/stable/modulefiles
         lmod: $spack/opt/spack/stable/modulefiles
-      tcl:
+      lmod:
         cray-mpich:
           environment:
             set:
@@ -32,9 +31,14 @@ spack:
             set:
               SLURM_MPI_TYPE: pmix
               OMPI_MCA_mtl_ofi_disable_hmem: 'true'
-      lmod:
+        openmpi@main:
+          environment:
+            set:
+              SLURM_MPI_TYPE: pmix
+              FI_HMEM_CUDA_USE_DMABUF: '1'
+              OMPI_MCA_coll: '^han'
         core_compilers:
-          - gcc@7.5.0
+        - gcc@=7.5.0
   specs:
   - matrix:
     - [$compilers]

env/sles15/aarch64/admin/testing/spack.yaml

@@ -30,6 +30,12 @@ spack:
             set:
               SLURM_MPI_TYPE: 'pmix'
               OMPI_MCA_mtl_ofi_disable_hmem: 'true'
+        openmpi@main:
+          environment:
+            set:
+              SLURM_MPI_TYPE: pmix
+              FI_HMEM_CUDA_USE_DMABUF: '1'
+              OMPI_MCA_coll: '^han'
   packages:
     # overwrite any existing compiler
     'cce:':

env/sles15/aarch64/admin/unstable/spack.yaml

@@ -59,6 +59,7 @@ spack:
             set:
               SLURM_MPI_TYPE: pmix
               FI_HMEM_CUDA_USE_DMABUF: '1'
+              OMPI_MCA_coll: '^han'
         core_compilers:
         - gcc@=7.5.0
   specs: