General Documentation
- Welcome FAQ
- Secure Shell SSH
- Available Software
- Installing Software
- Guidelines and Policies
- Glossary
- Grant Support
- Sharing Data
- Containers & Singularity
- UserGroup Presentations
- Jupyter Notebook Usage
LSF Primer
Lilac Cluster Guide
Juno Cluster Guide
Cloud Resources
Backup Policy on server/node local drives
File lists
Page History
...
- We reserve ~12GB of RAM per host for the operating system and GPFS on Juno CentOS 7 hosts.
- On each jx## node (CentOS 7 , with GPFS installed), 240GB of RAM is available for LSF jobs.
- When specifying RAM for LSF jobs, specify GB of RAM per task (slot) on Juno (, unlike luna , where RAM is specified per job).
- All jobs must have -W (maximum execution Walltime) specified on Juno. Please do not use -We on Juno.
- There is no /swap on CentOS 7 nodes. Memory usage is enforced by cgroups so jobs never swap. A job will be terminated if memory usage exceeds its LSF specification.
- All Juno compute hosts have access to internetthe Internet.
- To check jobs which are DONE or have status EXIT, use "bhist -l JobID" or "bhist -n 0 -l JobID". bacct is also available. "bjobs -l JobID" only shows RUNNING and PEND jobs.
- The maximum hold time for bjobs command can show jobs with DONE/EXIT jobs information is status for 24 hours in bjobs command.
Example: bsub -w "post_done('JOB_A') -J "JOB_B" ... if JOB_A DONE was DONE 72 hours earlier then before JOB_B was submitted, JOB_B won't will never start. - There is no iounits resource on Juno.
- Juno has an CMOPI SLA configured on Juno. The loan policies areis: 100% resources for 90 mints minute jobs for not non-SLA users, and 50% resources available for 360 mints minute jobs for not non-SLA users.
- The rest is determined by SLAs. The loan policy is 100% resources for 360 minute jobs for non-SLA users.