Serial jobs
- The maximum number of serial jobs any one user can run at once varies according to demand but is typically around 150 jobs.
- More than 150 serial jobs can be queued (as can jobarray tasks)
- It is highly recommended that if you have a lot of very similar serial jobs you utilise SGE Job Arrays.
Maximum total cores
- The number of cores that can be utilised by an individual varies according to how busy the system is, the type of jobs being run (e.g., serial or parallel) and the contribution under which jobs are being run.
- Note: Free at point of use user can only utilise 24 cores max at once (May 2017).
- This may be a combination of serial jobs and multi-core jobs.
- Jobs in the short queue do not contribute towards your total for the above limits but the short queue can only run a very small number of jobs.
- There are no limits on the number of jobs you can submit to the queue but if you have a lot of very similar jobs you should use SGE Job Arrays.
File size limits
Due to some jobs producing very large files there is a filesize limit of 4TB on ALL batch jobs. If you think this will cause you a problem please contact its-ri-team@manchester.ac.uk
