make OpenMPI only use shared memory comm by default and silence some warnings

tools/singularity/centos7.def

@@ -45,6 +45,11 @@ EOF
         # load MPI by default
         . /etc/profile
         module load mpi
+        # restrict OpenMPI to shared memory comm by default
+        OMPI_MCA_btl="sm,self"
+        # do not warn about unused components as this messes up testing
+        OMPI_MCA_btl_base_warn_component_unused="0"
+        export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
         Author akohlmey, rbberger

tools/singularity/centos8.def

@@ -50,6 +50,11 @@ EOF
         # load MPI by default
         . /etc/profile
         module load mpi
+        # restrict OpenMPI to shared memory comm by default
+        OMPI_MCA_btl="sm,self"
+        # do not warn about unused components as this messes up testing
+        OMPI_MCA_btl_base_warn_component_unused="0"
+        export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
         Author akohlmey, rbberger

tools/singularity/fedora32_mingw.def

@@ -65,6 +65,11 @@ EOF
         # load MPI by default
         . /etc/profile
         module load mpi
+        # restrict OpenMPI to shared memory comm by default
+        OMPI_MCA_btl="sm,self"
+        # do not warn about unused components as this messes up testing
+        OMPI_MCA_btl_base_warn_component_unused="0"
+        export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
         Author akohlmey, rbberger

tools/singularity/ubuntu16.04.def

@@ -28,6 +28,11 @@ EOF
 %environment
         LC_ALL=C
         export LC_ALL
+        # restrict OpenMPI to shared memory comm by default
+        OMPI_MCA_btl="sm,self"
+        # do not warn about unused components as this messes up testing
+        OMPI_MCA_btl_base_warn_component_unused="0"
+        export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
         Author akohlmey, rbberger

tools/singularity/ubuntu18.04.def

@@ -83,6 +83,11 @@ EOF
     LC_ALL=C
     export LC_ALL
     export PATH=/usr/lib/ccache:$PATH
+    # restrict OpenMPI to shared memory comm by default
+    OMPI_MCA_btl="sm,self"
+    # do not warn about unused components as this messes up testing
+    OMPI_MCA_btl_base_warn_component_unused="0"
+    export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
     Author akohlmey, rbberger

tools/singularity/ubuntu18.04_amd_rocm.def

@@ -89,6 +89,11 @@ EOF
 %environment
     LC_ALL=C
     export LC_ALL
+    # restrict OpenMPI to shared memory comm by default
+    OMPI_MCA_btl="sm,self"
+    # do not warn about unused components as this messes up testing
+    OMPI_MCA_btl_base_warn_component_unused="0"
+    export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
     Author rbberger, akohlmey

tools/singularity/ubuntu18.04_gpu.def

@@ -116,6 +116,11 @@ EOF
 %environment
     LC_ALL=C
     export LC_ALL
+    # restrict OpenMPI to shared memory comm by default
+    OMPI_MCA_btl="sm,self"
+    # do not warn about unused components as this messes up testing
+    OMPI_MCA_btl_base_warn_component_unused="0"
+    export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
     Author rbberger, akohlmey

tools/singularity/ubuntu18.04_intel_opencl.def

@@ -80,8 +80,13 @@ EOF
 
 
 %environment
-        LC_ALL=C
+    LC_ALL=C
-        export LC_ALL
+    export LC_ALL
+    # restrict OpenMPI to shared memory comm by default
+    OMPI_MCA_btl="sm,self"
+    # do not warn about unused components as this messes up testing
+    OMPI_MCA_btl_base_warn_component_unused="0"
+    export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
     Author rbberger, akohlmey

tools/singularity/ubuntu18.04_nvidia.def

@@ -79,8 +79,13 @@ EOF
 
 
 %environment
-        LC_ALL=C
+    LC_ALL=C
-        export LC_ALL
+    export LC_ALL
+    # restrict OpenMPI to shared memory comm by default
+    OMPI_MCA_btl="sm,self"
+    # do not warn about unused components as this messes up testing
+    OMPI_MCA_btl_base_warn_component_unused="0"
+    export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
     Author rbberger, akohlmey

tools/singularity/ubuntu20.04.def

@@ -79,6 +79,11 @@ EOF
 %environment
     LC_ALL=C
     export LC_ALL
+    # restrict OpenMPI to shared memory comm by default
+    OMPI_MCA_btl="sm,self"
+    # do not warn about unused components as this messes up testing
+    OMPI_MCA_btl_base_warn_component_unused="0"
+    export OMPI_MCA_btl OMPI_MCA_btl_base_warn_component_unused
 
 %labels
     Author akohlmey, rbberger