If you need to run a process outside of a job, for example a workflow manager, do not do it on the cluster head node.
For this usage we provide a dedicated workflow host, dahu-workflow1, from which you can submit oar jobs on any of the clusters:
$ ssh dahu-workflow1.ciment
WELCOME TO THE WORKFLOW HOST FOR GRICAD CLUSTERS !
********* You are logged on a secondary dahu frontend ********
This host is reserved to workflow processes that submit jobs
to Dahu nodes. You can also submit jobs on bigfoot or luke
with ssh. For example:
ssh bigfoot oarsub ...
**************************************************************