The High Performance Computing (HPC) System is a precious computing resource. It is installed to support compute-intensive research projects and programs.

Jobs submitted to the system are managed and dispatched by a batch job management system. Jobs are scheduled to run according to the following policies and guidelines:

A. Policies

1. Higher priority is generally given to large jobs that require the multiple-node(or processors) queues as specified in section 5.2 of http://www.cuhk.edu.hk/itsc/compenv/research-computing/cluster/system.html. Smaller jobs that require one to two nodes (or processors) will receive a lower priority. However, under some circumstances such as the fulfillment of project report within a very short period, higher priority can be given to smaller jobs. To apply for a higher priority of your jobs please fill in section IV "Job Scheduling Requests and Reservation of computing nodes/processors" of the form downloadable at http://www.cuhk.edu.hk/itsc/onlineapp/form/s07.doc .
2. The job management system has implemented a fair share scheme in which user jobs in a queue are dispatched one-by-one no matter how many they are in the queue.
3. Partial or all computing resources of the system can be reserved by or dedicated to important project(s). Please fill in section IV "Job Scheduling Requests and Reservation of computing nodes/processors" of the form downloadable at http://www.cuhk.edu.hk/itsc/onlineapp/form/s07.doc for such a special arrangement.
4. The administrator of the HPC system may alter the priority or terminate the execution of any process that is consuming excessive system resources or objectionably degrading system response, with or without prior notification.

B. Guidelines

1. Each user should specify no more than one independent program to be executed for each job. If a submitted job is found not to conform to this guideline, it’ll be killed without any notification.
2. Each user can, at most, have no more than 10 jobs in a system. More will be killed without any notification.
3. Each user should specify his/her job requirements according to the queue definitions , otherwise his/her job will not be started.
4. Each user should always observe the appropriate use of the computing resources of HPC system. If they are found not to do so repeatedly, ITSC may restrict access of the system to him/her.
   

In general, if you want to request dedicated computing resources or to set a higher priority for your job, you can download an application form at http://www.cuhk.edu.hk/itsc/onlineapp/form/s07.doc.