The programmer of a batch service available in a SeD has not to worry to which batch system to submit except for its name, because DIET provides all the mechanisms to transparently submit the job to them.
DIET is able to submit batch scripts to
OAR (version 1.6 and 2.0), PBS/Torque and loadleveler.
The name of the batch scheduler managing the parallel resource where
the SeD is running has to be incorporated with the keyword
batchName in the server configuration file. Only this makes the
SeD know how to submit a job correctly.
Furthermore, if there is no default queue, the DIET deployer must
also provide the queue on which jobs have to be submitted, with the
keyword batchQueue.
You also have to provide a directory where the SeD can read and write data on
the parallel resource. Please note that this directory is used by DIET to
store the new built script that is submitted to the batch scheduler. In
consequence, because certain batch schedulers (like OAR) need the script to be
available on all resources, this directory might be on NFS (remember that
DIET cannot replicate the script on all resources before submission because of
access rights). Note that concerning OAR (v1.6), in order to use the
CoRI_batch features for 0AR 1.6 (see Section 9.3.4), the
Batch SeD deployer must also provide the keyword internQueue with the
corresponding name. For example, the server configuration file can contain the
following lines: