The compute nodes Lise in Berlin (blogin.hlrn.de) and Emmy in Göttingen (glogin.hlrn.de) have the following partitions:
Lise (Berlin)
Partition (number holds cores per node) | Node name | Max. walltime | Nodes | Max. nodes per job | Usable memory MB per node | CPU | Shared | NPL per node hour | Remark | |
|---|---|---|---|---|---|---|---|---|---|---|
| standard96 | bcn# | 12:00:00 | 1204 | 512 | 16 / 500 | 362 000 | Cascade 9242 | ✘ | 14 | default partition |
| standard96:test | bcn# | 1:00:00 | 32 dedicated +128 on demand | 16 | 1 / 500 | 362 000 | Cascade 9242 | ✘ | 14 | test nodes with higher priority but lower walltime |
| large96 | bfn# | 12:00:00 | 28 | 4 | 16 / 500 | 747 000 | Cascade 9242 | ✘ | 21 | fat nodes |
| large96:test | bfn# | 1:00:00 | 2 dedicated +2 on demand | 2 | 1 / 500 | 747 000 | Cascade 9242 | ✘ | 21 | fat test nodes with higher priority but lower walltime |
| large96:shared | bfn# | 48:00:00 | 2 dedicated | 1 | 16 / 500 | 747 000 | Cascade 9242 | ✓ | 21 | fat nodes for data pre- and postprocessing |
| huge96 | bsn# | 24:00:00 | 2 | 1 | 16 / 500 | 1522 000 | Cascade 9242 | ✓ | 28 | very fat nodes for data pre- and postprocessing |
12 hours are to short? See here how to pass the 12h walltime limit with job dependencies.
Emmy (Göttingen)
Partition (number holds cores per node) | Node name | Nodes | Max. nodes per job | Max. jobs per user | Usable memory MB per node | CPU, GPU type | Shared | NPL per node hour | Remark | |
|---|---|---|---|---|---|---|---|---|---|---|
| standard96 | gcn# | 12:00:00 | 924 | 256 | unlimited | 362 000 | Cascade 9242 | ✘ | 14 | default partition |
| standard96:test | gcn# | 1:00:00 | 16 dedicated +48 on demand | 16 | unlimited | 362 000 | Cascade 9242 | ✘ | 14 | test nodes with higher priority but lower walltime |
| large96 | gfn# | 12:00:00 | 12 | 2 | unlimited | 747 000 | Cascade 9242 | ✘ | 21 | fat nodes |
| large96:test | gfn# | 1:00:00 | 2 dedicated +2 on demand | 2 | unlimited | 747 000 | Cascade 9242 | ✘ | 21 | fat test nodes with higher priority but lower walltime |
| large96:shared | gfn# | 48:00:00 | 2 dedicated +2 on demand | 1 | unlimited | 747 000 | Cascade 9242 | ✓ | 21 | fat nodes for data pre- and postprocessing |
| huge96 | gsn# | 24:00:00 | 2 | 1 | unlimited | 1522 000 | Cascade 9242 | ✘ | 28 | very fat nodes for data pre- and postprocessing |
| medium40 | gcn# | 48:00:00 | 368 | 128 | unlimited | 181 000 | Skylake 6148 | ✘ | 6 | |
| medium40:test | gcn# | 1:00:00 | 32 dedicated +96 on demand | 8 | unlimited | 181 000 | Skylake 6148 | ✘ | 6 | test nodes with higher priority but lower walltime |
| large40 | gfn# | 48:00:00 | 11 | 4 | unlimited | 764 000 | Skylake 6148 | ✘ | 12 | fat nodes |
| large40:test | gfn# | 1:00:00 | 3 | 2 | unlimited | 764 000 | Skylake 6148 | ✘ | 12 | fat test nodes with higher priority but lower walltime |
| large40:shared | gfn# | 48:00:00 | 2 | 1 | unlimited | 764 000 | Skylake 6148 | ✓ | 12 | for data pre- and postprocessing |
| gpu | ggpu# | 12:00:00 | 3 | 3 | unlimited | 764 000 | Skylake 6148 + Tesla V100 | ✘ | 12 | see GPU Usage |
Which partition to choose?
If you do not request a partition, you will be placed on to the default partition, which is standard96.
The default partitions are suitable for most calculations. The :test partitions are, as the name suggests, intended for shorter and smaller test runs. These have a higher priotity and a few dedicated nodes, but are limited in time and number of nodes. Shared nodes are suitable for post-processing. A job running on a shared node is only accounted for its core fraction (cores of job / all cores per node). All non shared nodes are exclusive to one job, which implies that full NPL are paid.
Details about the CPU/GPU types can be found below.
The network topology is described here.
The available home/local-ssd/work/perm storages are discussed in File Systems.
An overview of all partitions and node statuses is provided by: sinfo -r
To see detailed information about a nodes type: scontrol show node <nodename>
List of CPUs and GPUs at HLRN
| Shortname | Link to manufacturer specifications | Where to find | Units per node | Cores per unit | GHz per core |
|---|---|---|---|---|---|
| Cascade 9242 | Intel Cascade Lake Platinum 9242 (CLX-AP) | Lise's compute partitions | 2 | 48 | 2.4 |
| Cascade 4210 | Intel Cascade Lake Silver 4210 (CLX) | Lise's login nodes | 2 | 10 | 2.2 |
| Skylake 6148 | Intel Skylake Gold 6148 | Emmy's compute partitions | 2 | 20 | 2.3 |
| Tesla V100 | NVIDIA Tesla V100 32GB | Emmy's compute partitions | 4 | 640/5120* |
*Tensor Cores / CUDA Cores