REGION specifies the maximum CPU memory allocated for a particular job or job step. If REGION is in the JOB card, it relates to the entire job; if in the EXEC statement, it relates to the job step.
Specifies the address space required to run a job step within the job.
Following is the syntax:
REGION=nK | nM
Here, region can be specified as nK or nM where n is a number, K is kilobyte and M is Megabyte.
When REGION = 0K or 0M, largest address space is provided for execution.In critical applications, coding of 0K or 0M is prohibited to avoid wasting the address space.
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