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C3SE is the Chalmers e-Commons e-Infrastructure group at Chalmers University of Technology in Gothenburg Sweden. C3SE is also a providing resources for the national metacenter National Academic Infrastructure for Supercomputing in Sweden, NAISS.

User information and documentation¶

If you would like to use our facilities, please have a look at our first-time users page. More information on how to use our systems can be found under the "Documentation" tab in the left panel.

Current resources¶

Vera: compute cluster for local users.
Alvis: GPU cluster for national and local users.
Cephyr: CephFS based center storage connected to Alvis and Vera
Cephyr S3: Ceph based, S3-compatible object storage, available worldwide
Mimer: Flash based fast storage connected to Alvis, also available on Vera
Cirrus: OpenStack based cloud resource (coming soon, contact us for info)
Disa: Kubernetes based container solution (coming soon, contact us for info)

News and upcoming events ¶

Date	Text
2026-06-04	Introduction seminar for Vera users. In this online seminar we will show you how to use Vera. Zoom meeting will be at 13:15-15:00 here. No registration is required.
2026-04-30 15:00:00	Alvis users outside Chalmers will have noticed that SSH port (22) is blocked by Chalmers central IT following the very severe Linux kernel security issue from today. While we have protected the our systems, this port still got blocked. We have requested excemption from the block, but we recommend users to use the several other ways of accessing Alvis in the meantime. You can still access OpenOndemand via https://alvis.c3se.chalmers.se and the login nodes via https://alvis1.c3se.chalmers.se and https://alvis2.c3se.chalmers.se
2026-04-30 13:00:00	Following mitigations of security issues, we are bringing the Vera and Alvis clusters back online. To see which jobs got killed you can use `sacct -X -S 043026-10:10 -E 043026-12:00 -a -s CANCELLED --format=jobname%40,job%14,user%12,account%20,end%20,elapsed%10` and optionally you can add `--user $USER` or `--account YOUR_SLURM_ACCOUNT` to filter it further.
2026-04-30 11:00:00	Due to severe security issue, we have to reboot all systems, including all login nodes and compute nodes.
2026-04-20	There are some issues with the current version of `mstsc.exe`, the Windows RDP client, such as parts of the screen turning black. The best known remedy at this time is to use a different client, such as the web client or Devolutions RDM. See https://www.c3se.chalmers.se/documentation/connecting/remote_graphics/ for options.
2026-04-01	Access to Chalmers VPN will require explicit request from the user. For details see: https://www.c3se.chalmers.se/documentation/connecting/#vpn

List of our past events

Acknowledgement suggestion¶

The recommended way to acknowledge e-Commons/C3SE (e.g. projects on Vera) is:

The computations/data handling/[SIMILAR] were/was enabled by resources provided by Chalmers e-Commons at Chalmers.

If applicable, also add an acknowledgement for application support:

"[NAME] at Chalmers e-Commons is acknowledged for assistance concerning technical and implementation aspects [OR SIMILAR] in making the code run on the [OR SIMILAR] Chalmers e-Common resources."

or

"We thank [NAME] at Chalmers e-Commons for [his/her] assistance with [describe tasks such as porting, code optimization, etc.]"

The recommended way to acknowledge SNIC/NAISS (e.g. projects on Alvis or other SNIC/NAISS resources) can be found on the NAISS homepage.