Ehlers cluster¶
Overview¶
Ehlers is a university cluster with NVIDIA GPUs, available to SimTech-affiliated personnel.
In total, the cluster consists of 1920 compute cores split across 17 nodes using a 200 Gbps InfiniBand. See the Ehlers internal pages for more information.
Type |
Nodes |
Cores |
RAM |
GPU |
Partition |
|---|---|---|---|---|---|
CPU |
12 |
2x64 |
2 TB |
|
|
GPU |
4 |
2x32 |
512 GB |
4x A100 |
|
DGX |
1 |
2x64 |
2 TB |
8x A100 |
|
Partitions and nodes¶
CPU nodes¶
There are 12 nodes equipped with 2 AMD EPYC 7702 (64 cores, 128 threads, 2.0 GHz, 200 W), 2 TB of RAM, InfiniBand (200 Gbps) interconnect. There are no GPUs.
GPU nodes¶
There are 4 nodes equipped with 2 AMD EPYC 7543 (32 cores, 64 threads, 2.8 GHz, 225 W), 512 GB of RAM, InfiniBand (200 Gbps) interconnect. Each node has 4 NVIDIA Tesla A100 (80 GB HBM2).
DGX nodes¶
There is 1 node equipped with 2 AMD EPYC 7742 (64 cores, 128 threads, 2.25 GHz, 225 W), 2 TB of RAM. Each node has 8 NVIDIA Tesla A100 (80 GB HBM2).
Access¶
See the Ehlers user documentation for detailed instructions. The application form is 1-page long and must be signed by both the PI and the researcher who will use the cluster. See also Using Ehlers for building software and submitting jobs.
Obligations¶
Use of the cluster must be acknowledged in scientific publications. The acknowledgment must follow a strict formulation that depends on co-authors’ affiliations and the type of funding. For the exact details, refer to SimTech Startseite / Publications / Acknowledgement.