C3SE is a centre for scientific and technical computing at Chalmers University of Technology in Gothenburg Sweden. C3SE is one of six centres in the national metacenter Swedish National Infrastructure for Computing

Current systems🔗

  • PC-cluster Vera for local users.
  • PC-cluster with GPU accelerators Alvis for national and local users.

C3SE is also part of Swedish Science Cloud and Swestore


Date Text
2023-09-27 The OpenOndemand portal for Vera cluster is now available at https://vera.c3se.chalmers.se. It provides a simple way to run interactive jobs on the cluster, such as jupyter notebooks, RStudio, VS code, and even a full desktop session. Anyone using srun for interactive jobs or the proxy server for running jupyter notebooks should switch to using this portal instead as it provides many advantages.
2023-07-11 The /cephyr storage will be moved to new hardware. From 09:00 July 11 both Vera and Alvis will be completely unavailable while we sync the files and make the transition. We don't expect this to take longer than a week. Jobs that request a walltime beyond this time will not start until the system is back up again.
2023-05-12 Due to an unexpected cooling outage in Alvis's main server hall large parts of the system has been shut-down. The cooling outage will continue until Monday morning and we will try to get the system up as soon as we are able. All A40, A100 nodes, the CPU node, and the alvis2 login node will be offline. Any jobs that where running there had to be killed due to this emergency.
2023-03-07 Chalmers e-Commons is still hiring.; system administrators and systems engineer.
2023-02-22 Cooling system will be serviced. All A100 and A40 nods in Alvis will be shut down for the day. Jobs with walltimes beyond 07:00 won't start until service is done.
2023-01-01 NAISS has replaced SNIC. Read more at NAISS website and SNIC newsletter.
2022-11-22 All nodes (including private partitions) have been updated to Rocky 8. If you have, you should stop using the --reservation=rocky8 now.
2022-11-08 Almost all nodes have been updated to Rocky 8. There are much more updated nodes than are still running CentOS7.
2022-09-01 Vera expansion is now live. All Vera users should read the news page for how to use the new nodes and the upcoming changes that will affect all nodes.
2022-09-01 Vera expansion and OS upgrade is nearing. vera2 login node will be emptied and updated 2022-09-02 in preparation for this change. Big news announcement will follow. Use vera1 for now and remember that login nodes are shared!

Current and upcoming events🔗

Date Text
2023-09-27 Introduction seminar for Alvis users. In this online seminar we will show you how to use Alvis. Zoom meeting will be at 13:15-17:00 here. The second part of this seminar will be an optional workshop where users can go through a tutorial with help available and on reserved nodes on Alvis. To get access to the reserved resources for the workshop you need to request membership to project SNIC 2022/22-1064 two days before the seminar at the latest. If you are going to participate in the workshop you should either be connected through SUNET or use a VPN with which you can connect to Alvis.
2023-09-07 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.

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 implementational aspects [OR SIMILAR] in making the code run on the [OR SIMILAR] Chalmers e-Common resources."


"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.