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Note that Helios uses PLGrid accounts and grants. Make sure to request the "Helios access" access service in the PLGrid portal.
Helios is built with Slingshot interconnect and nodes of the following specificationa hybrid cluster. CPU nodes use x86_64 CPUs, while the GPU partition is based on GH200 superchips, which include an Nvidia Grace - ARM CPU and Nvidia Hopper GPU. HPE Slingshot is used as an interconnect. Node specification can be found below:
| Partition | Number of nodes | CPU | RAM | Proportional RAM for one CPU | Proportional RAM for one GPU | Proportional CPU for one GPU | Accelerator |
|---|---|---|---|---|---|---|---|
| plgrid (includes plgrid-long) | 272 | 192 cores, x86_64, 2x AMD EPYC 9654 96-Core Processor @ 2.4 GHz | 384 GB | 2000 MB | n/a | n/a | |
| plgrid-bigmem | 120 | 192 cores, x86_64, 2x AMD EPYC 9654 96-Core Processor @ 2.4 GHz | 768 GB | 4000 MB | n/a | n/a | |
| plgrid-gpu-gh200 | 110 | 288 cores, aarch64, 4x NVIDIA Grace CPU 72-Core @ 3.1 GHz | 480 GB | n/a | 120 GB | 72 | 4x NVIDIA GH200 96GB |
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