Grid Services

Submitting a job

Jobs are submitted to a Compute Element (CE). The ScotGrid site at Glasgow has four CEs:

It does not matter which CE you choose to submit to. (If you've looked at the tutorial linked above, you'll see that Durham gave their CEs the sensible names ce1, ce2, etc. We thought that would be too easy.)

Jobs are submitted using the arcsub command:

$ arcsub -c <CE_HOSTNAME> <XRSL_FILENAME>

When a job is submitted successfully, you will be presented with its job ID which can be used to refer to the job later. Information about submitted jobs is also recorded in a job list file; by default, this file is ~/.arc/jobs.dat (~/.arc/jobs.xml with some earlier versions of ARC), but you can choose a different location by supplying the -j argument to arcsub:

When a job is submitted successfully, you will be presented with its job ID which can be used to refer to the job later. Information about submitted jobs is also recorded in a job list file; by default, this file is ~/.arc/jobs.dat (~/.arc/jobs.xml with some earlier versions of ARC), but you can choose a different location by supplying the -j argument to arcsub:

$ arcsub -j <JOBLIST_FILENAME> -c <CE_HOSTNAME> <XRSL_FILENAME>

For example:

Querying the status of a job

Querying the status of a job

You can obtain information about the status of jobs using the arcstat command:

$ arcstat <JOB_ID>

For example, to obtain information about the job submitted in the previous step:

Retrieving job output

Output and log files for a job can be retrieved using the arcget command. As when querying the status of a job, you can use either a job ID or a job list file with this command:

$ arcget <JOB_ID>
$ arcget -j <JOBLIST_FILENAME>

For example, to get the output of the job submitted above: