The Cholesky computing cluster
Cholesky is a DELL compute cluster made up of two types of nodes: CPU nodes and GPU nodes. All the nodes of the cluster are interconnected by a very high speed InfiniBand network and access a parallel file system BeeGFS oriented towards high performance computing.
User resources
- 2 login front-end nodes (DNS Round Robin for load sharing or fault tolerance)
- A parallel file system BeeGFS : 385 TB of usable space
- A Mellanox InfiniBand HDR (High Data Rate) interconnection network 200Gb/s : 1 split link for 2 nodes or 100Gb/s per CPU or GPU node
CPU resources
| Nb of Nodes |
Nb of CPUs |
DELL Model Server |
CPU reference | CPU gen | Max memory |
Max reserved memory |
|---|---|---|---|---|---|---|
| 56 | 2 | PowerEdge C6420 |
Intel Xeon CPU Gold 6230 20 cores @ 2.1 Ghz |
Cascade Lake |
192 GB | 188 GB |
| 12 | 2 | PowerEdge C6420 |
Intel Xeon CPU Gold 6230 20 cores @ 2.1 Ghz |
Cascade Lake |
384 GB | 380 GB |
GPU resources
| Nb of Nodes |
Nb of CPUs |
Model Server |
CPU reference | CPU gen | Max memory |
Max reserved memory |
Nb of GPUs |
GPU reference |
Max GRAM per GPU |
|---|---|---|---|---|---|---|---|---|---|
| 2 | 2 | DELL Poweredge C4140 |
Intel Xeon CPU Gold 6230 20 cores @ 2.1 Ghz |
Cascade Lake |
160 GB | 152 GB | 4 | Nvidia Tesla V100 | 32 GB |
| 2 | 2 | DELL Poweredge R740XA |
Intel Xeon CPU Gold 6330 28 cores @ 2.0 Ghz |
Ice Lake |
192 GB | 188 GB | 4 | Nvidia A100 | 40 GB |
| 1 | 2 | Gigabyte G242-Z12 | AMD EPYC 7643 48 cores @ 2.3 Ghz |
AMD EPYC | 512 GB | 500 GB | 4 | Nvidia A100 | 80 GB |