Partitions¶
This page lists the available Slurm partitions on Devana and their configuration limits. For a general explanation of partitions and how to use them, see the Shared Guides → Partitions section.
Available Partitions¶
| Partition | Nodes | Time limit (d-hh:mm) |
Job size limit (nodes/cores) |
GPUs | Priority factor |
|---|---|---|---|---|---|
testing |
login01,login02 | 0-00:30 | 1/16 | 0 | 0 |
gpu |
n141-n148 | 2-00:00 | 1/64 | 4 | 0 |
short |
n001-n140 | 1-00:00 | 8/512 | 0 | 2 |
medium |
n001-n140 | 2-00:00 | 4/256 | 0 | 1 |
long |
n001-n140 | 4-00:00 | 1/64 | 0 | 0 |
Viewing Partition Status¶
The current state of partitions and nodes can be displayed using the
sinfo command:
sinfo
sinfo output
PARTITION AVAIL TIMELIMIT NODES STATE NODELIST
testing up 30:00 2 idle login[01-02]
gpu up 2-00:00:00 4 mix n[141-143,148]
gpu up 2-00:00:00 1 alloc n144
gpu up 2-00:00:00 3 idle n[145-147]
short* up 1-00:00:00 22 drain* n[014-021,026-031,044-051]
short* up 1-00:00:00 10 mix n[001-002,025,052,058,067,073,079,081,105]
short* up 1-00:00:00 86 alloc n[003-008,012-013,022-024,032-033,036-043,053-057,059-066,068-072,074,077-078,080,082-094,097-099,102-104,106-116,119-127,131,135-136,140]
short* up 1-00:00:00 22 idle n[009-011,034-035,075-076,095-096,100-101,117-118,128-130,132-134,137-139]
medium up 2-00:00:00 22 drain* n[014-021,026-031,044-051]
medium up 2-00:00:00 10 mix n[001-002,025,052,058,067,073,079,081,105]
medium up 2-00:00:00 86 alloc n[003-008,012-013,022-024,032-033,036-043,053-057,059-066,068-072,074,077-078,080,082-094,097-099,102-104,106-116,119-127,131,135-136,140]
medium up 2-00:00:00 22 idle n[009-011,034-035,075-076,095-096,100-101,117-118,128-130,132-134,137-139]
long up 4-00:00:00 22 drain* n[014-021,026-031,044-051]
long up 4-00:00:00 10 mix n[001-002,025,052,058,067,073,079,081,105]
long up 4-00:00:00 86 alloc n[003-008,012-013,022-024,032-033,036-043,053-057,059-066,068-072,074,077-078,080,082-094,097-099,102-104,106-116,119-127,131,135-136,140]
long up 4-00:00:00 22 idle n[009-011,034-035,075-076,095-096,100-101,117-118,128-130,132-134,137-139]
The * in the partition name indicates the default partition.
Nodes may appear multiple times because they belong to several
partitions (e.g. n[001-140] is part of short, medium, and long).
Within one partition, a node is listed per state (idle, mix, alloc).
Viewing Detailed Partition Configuration¶
To display detailed configuration parameters for partitions, use:
scontrol show partitions
or for a specific partition:
scontrol show partition long
scontrol show partition long output
scontrol show partition long
PartitionName=long
AllowGroups=ALL AllowAccounts=ALL AllowQos=ALL
AllocNodes=ALL Default=NO QoS=N/A
DefaultTime=4-00:00:00 DisableRootJobs=NO ExclusiveUser=NO GraceTime=0 Hidden=NO
MaxNodes=1 MaxTime=4-00:00:00 MinNodes=0 LLN=NO MaxCPUsPerNode=UNLIMITED
Nodes=n[001-140]
PriorityJobFactor=0 PriorityTier=1 RootOnly=NO ReqResv=NO OverSubscribe=NO
OverTimeLimit=NONE PreemptMode=OFF
State=UP TotalCPUs=8960 TotalNodes=140 SelectTypeParameters=NONE
JobDefaults=(null)
DefMemPerCPU=4000 MaxMemPerNode=UNLIMITED
TRES=cpu=8960,mem=35000G,node=140,billing=8960
TRESBillingWeights=CPU=1.0,Mem=0.256G
This command provides information such as node lists, runtime limits, memory settings, and scheduling parameters.
Notes on Scheduling Behavior¶
- Short partitions (higher priority) are scheduled faster but impose stricter limits.
- Long partitions (lower priority) allow extended runtime but may queue longer.
- GPU partitions carry significantly higher billing weight, so inefficient usage is penalized.
Walltime estimation and job efficiency
The maximum allowed runtime for regular jobs on Devana is
4 days (4-00:00:00). Estimating job runtime accurately can
significantly improve scheduling efficiency. As your workloads
mature, check previous job performance using the
seff command and adjust the #SBATCH -t parameter in your
job scripts accordingly. Shorter jobs are typically scheduled
faster.