Partitions on SHARK
Important changes and new guidelines to the partition system on 02 Jan 2026
Changes
Runtime limits: Common partitions will now have runtime limits.
Interactive jobs: For interactive jobs in all common partitions, any runtime request longer than 10 hours will be reset to a maximum of 10 hours.
New Guidelines
Guidelines for Shark jobs to improve scheduling:
Choose the right partition based on job type, resources, and expected duration.
Use seff and sacct after jobs to check resource usage and optimize your next job.
Request only the resources you need: runtime, memory, CPU, GPU.
Do not run interactive sessions longer than 10 hours.
Avoid reserving maximum time or resources if you won’t use them.
All changes made will be written in the MOTD (Message of the Day), which is displayed when logging in through SSH or by using the command:
$ cat /etc/motd
Changes to gpu partitions on 06 Jan 2026
new partition names | walltime | Nodes |
|---|---|---|
gpu | 10hrs | res-hpc-gpu[01-02] |
gpu-short | 30min | If possible ALL gpus from all groups give 30min of runtime to everyone, else all common gpu nodes |
gpu-medium | 2days | res-hpc-gpu[06-08] |
gpu-long | 7days | res-hpc-gpu[11-12] |
lumcdiagnosticsgpu | inf | res-hpc-gpu[09] |
List of partitions on SHARK
The following partitions are available on SHARK:
Partition name | Nodes | Default | MemPerCpu | DefaultTime | Max Walltime | Remark |
|---|---|---|---|---|---|---|
all | res-hpc-exe[001-003,005,007-009,011-014,024,027,029-031,036,039-043],res-hpc-gpu[01-02],res-hpc-mem[01-02] | Yes | 2048 | 1:00:00 | - | Default partition |
gpu | res-hpc-gpu[01-04,09] | No | 2048 | 1:00:00 | - | Only for GPU/CUDA calculations |
highmem | res-hpc-mem[01-02] | No | 2048 | 1:00:00 | - | For memory intensive applications |
highmemgpu | res-hpc-gpu07 | No | 2048 | - | - | For memory intensive GPU/CUDA applications |
LKEBgpu | res-hpc-lkeb[04-09] | No | 2048 | - | - | Only for GPU/CUDA calculations |
PATHgpu | res-hpc-path[01-02] | No | 2048 | - | - |
|
RTgpu | res-hpc-gpu[05-06,08,10-11] | No | 2048 | - | - |
|
short | res-hpc-exe[001-003,005,007-009,011-014,024,027,029-036,039-043],res-hpc-gpu[01-06,09],res-hpc-path[01-02] | No | 2048 | - | 1:00:00 | max 60 cores for non GPU calculations |
A job must always be submitted to a partition (queue). By default, the jobs will be submitted to the "all" partition unless you specify a different queue.