restrict node resources (#388)

Author: sjpb

environments/common/inventory/group_vars/all/openhpc.yml

@@ -34,6 +34,7 @@ openhpc_login_only_nodes: login
 openhpc_config_default:
   SlurmctldParameters:
     - enable_configless
+  TaskPlugin: task/cgroup,task/affinity
 openhpc_config_extra: {}
 openhpc_config: "{{ openhpc_config_default | combine(openhpc_config_extra, list_merge='append') }}"
 openhpc_state_save_location: "{{ appliances_state_dir + '/slurmctld' if appliances_state_dir is defined else '/var/spool' }}"