Cheyenne scheduler issue causing some dependent jobs to run out of sequence

February 22, 2018

A job-dependency issue in the PBS Pro workload management system that is used for scheduling jobs on Cheyenne sometimes mistakenly allows dependent jobs to run out of sequence. This occurs when such jobs that are in hold status (H) are released.

CISL and the vendor are working on a solution. In the meantime, CISL recommends submitting dependent jobs manually as their parent jobs finish, particularly if running them out of sequence will cause extra cleanup work or damage control. Contact the CISL Consulting Services Group with any questions or requests for assistance.