Checking we have only 1 task per node
Checking we have only 1 task per node

This check was previously present when we had our MPI logic embedded
with the rest of the start_dfms_cluster script, but got lost during the
refactoring into "remotes". This solution I'm putting back should bring
that check back, and is generic to all remotes.

Signed-off-by: Rodrigo Tobar <bd955c861cbec2e41c0959cf13c7f573fa307e58@icrar.org>

steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge