Specifies the hard limit, soft limit, or both limits for the amount of CPU time that a submitted job step can use. This is a per process limit.
The syntax is:
cpu_limit = hardlimit,softlimit
For example:
cpu_limit = 12:56:21,12:50:00 cpu_limit = 56:21.5 cpu_limit = 1:03,21 cpu_limit = unlimited cpu_limit = rlim_infinity cpu_limit = copy
See Limit keywords for more information on the values and units you can use with this keyword.