Dry run or pre-check for `run.py`

[wjlei1990]

run.py will be invoked in the job script. If any syntax error or directory, errors occurred in the run.py, then this python script will error out, and we need to submit a new job to the job system.

Is there any way to check run.py such as a dry run or some prechecks to make sure there is no obvious error in run.py.

Actually, I recommend those copy and link processes (to set up the run directory for SPECFEM simulation) to be done before the job submission. So we can further avoid some directory issues during the job running. But we can discuss more details later.