CEICO HPC Services¶

High-performance computing for members of the CEICO project at the Institute of Physics (FZU) of the Czech Academy of Sciences.

Web portals need the FZU network or VPN. From elsewhere, use the external portal or the SOCKS proxy.

Our systems¶

Phoebe

The current CEICO cluster: 1408 CPU cores and 16 NVIDIA A100 GPUs on 100 Gb/s InfiniBand.

About Phoebe
Koios

The previous-generation CEICO cluster: 864 CPU cores, sharing accounts with Phoebe.

About Koios
Third-party systems

External infrastructures available to CEICO members, such as MetaCentrum.

MetaCentrum

Get an account

Create an SSH key pair, then contact the CEICO HPC administrator to set up your account.

Account setup
Command line (SSH)

Log in to phoebe.fzu.cz or koios1.fzu.cz from Linux, macOS or Windows.

Connect with SSH
JupyterLab in the browser

Run Python notebooks on Phoebe through the Open OnDemand portal.

Start JupyterLab
Remote desktop

Use graphical applications such as Wolfram Mathematica in a desktop session.

Open a desktop

Submit a batch job

Write a Slurm job script and queue it.
GPU jobs

Request NVIDIA A100 GPUs on Phoebe.
Interactive session

Get a shell on a compute node for testing and debugging.
Troubleshoot a job

Find out why a job failed or is still waiting.

Get help

Contact the CEICO HPC administrator.
Software

Software modules, conda, uv and guides for specific applications.
Storage

Where your files live: home directories, project space and local scratch.
Acknowledge Phoebe

Text to include in your publications.

TODO

Give "Get help" a real support contact (e-mail address, Slack or ticket system); it currently points to the account page.
Add where planned maintenance is announced (mailing list, Slack channel or status page).
Use one full name for CEICO: the footer says "Central European Institute for Cosmology and Fundamental Physics", the acknowledgement template "Central European Institute of Cosmology".