Use a container type job in g5k to build containers in a seminar session

[gkaf89]

Container jobs are submitted with:

$ oarsub --reservation=now --type=noop --type=container --project=hexapic --property=cluster=clervaux --resource=nodes=4/cpu=1/core=14,walltime=2:00:00
OAR_JOB_ID=280658
# Advance reservation request: waiting for validation...
# Reservation valid --> OK

The individual jobs are submitted with:

oarsub --interactive --project=hexapic --type=inner=280658 --resource=nodes=1/cpu=1/core=14,walltime=1:00:00

Issue with process affinity

The process affinity is a bit unexpected.

$ ps -p $$
    PID TTY          TIME CMD
   8490 pts/0    00:00:00 bash
$ taskset -p 8490
pid 8490's current affinity mask: 55555555555555

In terms of OpenMP terminology, we would expect the default to be close and not spread.

Resources

1. OAR container jobs

[gkaf89]

We should name the jobs with the --name option so that they can be found more easily in the list of jobs returned by oarstat.