Specifies the hard limit and/or soft limit for the CPU time to be used by all processes of a job step. For example, if a job step forks to produce multiple processes, the sum total of CPU consumed by all of the processes is added and controlled by this limit.
The syntax is:
job_cpu_limit = hardlimit,softlimit
For example:
job_cpu_limit = 12:56,12:50
See Limit Keywords for more information on the values and units you can use with this keyword.