Using partitions
In general, you do not need to explicitly request a partition in your job script with the #SBATCH -p tag. Typically, the appropriate partition is automatically selected based on your computing time project defaults and other specifications in your job script.
However, in the following cases you might need to specify the partition explicitly:
Special Memory Requirements on Claix-2023
Jobs scheduled on Claix-2023 are usually assigned to the c23ms partition. The nodes in this partition have 2.7 GB per core. If your job requires more memory per core and you do not want to pay extra, you can specify the c23mm for 5.3 GB per core or c23ml for 10.7 GB per core. Note that this may result in increased waiting times.
Testing Applications
The devel partition is designed for quick testing of computing jobs, offering short wait times but limited run times. You can find more information here.
GPU Partition
Usually, specifying the GPU partition is unnecessary, as your job will be automatically scheduled there when GPU resources are requested.
Overview
The following table gives an overview of the currently available partitions:
partition | #nodes | #cores per node | #mem per node | remarks |
| c23ms | 632 | 96 | 256 | Claix-2023 (small memory partition) |
| c23mm | 160 | 96 | 512 | Claix-2023 (medium memory partition) |
| c23ml | 2 | 96 | 1024 | Claix-2023 (large memory partition) |
| c23g | 52 | 96 | 256 | Claix-2023 GPU partition with four H100 GPUs per node |
| c18m | 1240 | 48 | 192 | default partition for the "default" project |
| c18g | 54 | 48 | 192 | 2 V100 gpus, request of volta gpu needed to submit to this partition |
| devel | 8 | 48 | 192 | Designed for testing jobs and programs. Maximum runtime: 1 Hour Has to be used without an project! Maximum of Simultanous Jobs! Further information can be found here |
