Vermilion

Vermilion is an OpenHPC-based cluster running on Dual AMD EPYC 7532 Rome CPUs. The nodes run as virtual machines in a local virtual private cloud (OpenStack). Mellanox drivers and OFED are installed on all nodes.

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Collaboration / Help

You can get help with Vermilion via email at HPC-Help@nrel.gov or live chat.

Live chat:
Users with access to NREL's Teams chat can collaborate via the Vermilion Users Teams room.

HPC-Help:
For specific questions about work you're running on Vermilion, send email to HPC-Help@nrel.gov and specify vermilion on the subject line.

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Connecting to Vermilion

To access vermilion, log into the NREL network and connect via ssh:

ssh vs.hpc.nrel.gov
ssh vermilion.hpc.nrel.gov

There are currently two login nodes. They share the same home directory so work done on one will appear on the other. They are:

vs-login-1
vs-login-2

You may connect directly to a login node, but they may be cycled in and out of the pool. If a node is unavailable, try connecting to another login node or the vs.hpc.nrel.gov round-robin option.

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Building code

Don't build or run code on a login node. Login nodes have limited CPU and memory available. Use a compute or GPU node instead. Simply start an interactive job on an appropriately provisioned node and partition for your work and do your builds there. Similarly, build your projects under /projects/your_project_name/ as home directories are limited to 5GB per user.

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