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The Nexus scheduler houses CLIP's new computational partition. Only CLIP lab members are able to run non-interruptible jobs on these nodes.

Submission Nodes

There are two submission nodes for Nexus exclusively available for CLIP users.



The CLIP partition has nodes brought over from the previous standalone CLIP Slurm scheduler as well as some more recent purchases. The compute nodes are named clip##.


CLIP users have access to all of the standard job QoSes in the clip partition using the clip account.

The additional job QoSes for the CLIP partition specifically are:

  • huge-long: Allows for longer jobs using higher overall resources.

Please note that the partition has a GrpTRES limit of 100% of the available cores/RAM on the partition-specific nodes in aggregate plus 50% of the available cores/RAM on legacy## nodes in aggregate, so your job may need to wait if all available cores/RAM (or GPUs) are in use.


You will need to specify --partition=clip, --account=clip, and a specific --qos to be able to submit jobs to the CLIP partition.

[username@nexusclip00:~ ] $ srun --pty --ntasks=4 --mem=8G --qos=default --partition=clip --account=clip --time 1-00:00:00 bash
srun: job 218874 queued and waiting for resources
srun: job 218874 has been allocated resources
[username@clip00:~ ] $ scontrol show job 218874
JobId=218874 JobName=bash
   UserId=username(1000) GroupId=username(21000) MCS_label=N/A
   Priority=897 Nice=0 Account=clip QOS=default
   JobState=RUNNING Reason=None Dependency=(null)
   Requeue=1 Restarts=0 BatchFlag=0 Reboot=0 ExitCode=0:0
   RunTime=00:00:06 TimeLimit=1-00:00:00 TimeMin=N/A
   SubmitTime=2022-11-18T11:13:56 EligibleTime=2022-11-18T11:13:56
   StartTime=2022-11-18T11:13:56 EndTime=2022-11-19T11:13:56 Deadline=N/A
   PreemptEligibleTime=2022-11-18T11:13:56 PreemptTime=None
   SuspendTime=None SecsPreSuspend=0 LastSchedEval=2022-11-18T11:13:56 Scheduler=Main
   Partition=clip AllocNode:Sid=nexusclip00:25443
   ReqNodeList=(null) ExcNodeList=(null)
   NumNodes=1 NumCPUs=4 NumTasks=4 CPUs/Task=1 ReqB:S:C:T=0:0:*:*
   Socks/Node=* NtasksPerN:B:S:C=0:0:*:* CoreSpec=*
   MinCPUsNode=1 MinMemoryNode=8G MinTmpDiskNode=0
   Features=(null) DelayBoot=00:00:00
   OverSubscribe=OK Contiguous=0 Licenses=(null) Network=(null)


All data filesystems that were available in the standalone CLIP cluster are also available in Nexus.

CLIP users can also request Nexus project allocations.