Jobs are submitted to CCR clusters using a batch queuing system. This provides the best means to insure an equitable distribution of CCR's computing resources among all users.
Each submitted job is assigned a queue priority, which
essentially determines when the job will run. There are several
factors which determine the priority that is assigned to a user's
CCR uses a batch scheduler to run jobs on the UB-HPC (rush) cluster. The user submits a job to the Scheduler specifying the required resources. These resources include number of processors, memory, as well as the amount of time needed by the job.
The top command show the CPU and memory utilization on the machine.
The ccrjobvis command provides a graphical display of the CPU,
memory, and Ethernet network activity on the nodes for an specific
We're now using the SLURM scheduler. If you need to update your job scripts from PBS format, this is a great cheatsheet for comparing commands between the two schedulers. Click here for more info about using SLURM at CCR.