Last week, Jackie Scoggins from the High Performance Computing Services group addressed the 4th annual Adaptive Computing Moab User Group Conference (MoabCon 2011)) which was held May 10-12 in Provo, Utah. Moab is one of the most widely used job schedulers at large HPC installations. Jackie Scoggins presented a case study of how the LBNL IT Division manages job scheduling across a large number of clusters using a single scheduler.