Maui Scheduler

11.6 Job Defaults and Per Job Limits

11.6.1 Job Defaults

Job defaults can be specified on a per queue basis. These defaults are specified using the CLASSCFG parameter. The table below show the applicable attributes:

Attribute Format Example
DEFAULT.FEATURES comma delimited list of node features CLASSCFG[batch] DEFAULT.FEATURES=fast,io
(jobs submitted to class batch will request nodes features fast and io
DEFAULT.WCLIMIT [[[DD:]HH:]MM:]SS CLASSCFG[batch] DEFAULT.WCLIMIT=1:00:00
(jobs submitted to class batch will request one hour of walltime by default.)

11.6.2 Per Job Maximum Limits

Job defaults can be specified on a per queue basis. These defaults are specified using t he CLASSCFG parameter. The table below shows the applicable attributes:

Attribute Format Example
MAX.WCLIMIT [[[DD:]HH:]MM:]SS CLASSCFG[batch] MAX.WCLIMIT=1:00:00
(jobs submitted to class batch can request no more than one hour of walltime.)

11.6.3 Per Job Minimum Limits

Furthermore, minimum job defaults can be specified on with the CLASSCFG parameter. The table below shows the applicable attributes:

Attribute Format Example
MIN.PROC <integer> CLASSCFG[batch] MIN.PROC=10
(jobs submitted to class batch can request no less than ten processors.)

The Moab Cluster Manager^TM provides an easy to use graphical interface to control job limits.

Attribute	Format	Example
DEFAULT.FEATURES	comma delimited list of node features	`CLASSCFG[batch] DEFAULT.FEATURES=fast,io` (jobs submitted to class `batch` will request nodes features `fast` and `io`
DEFAULT.WCLIMIT	[[[DD:]HH:]MM:]SS	`CLASSCFG[batch] DEFAULT.WCLIMIT=1:00:00` (jobs submitted to class `batch` will request one hour of walltime by default.)