¶
C3SE is the Chalmers e-Commons e-Infrastructure group at Chalmers University of Technology in Gothenburg Sweden. C3SE is also a part of 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 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
News¶
| Date | Text |
|---|---|
We have rolled out the fix for MPI and it should be applied everywhere except for long running jobs. Generally we suggest using srun over mpirun as it should be working in all cases. If you continue to face issues with MPI please reach out to us using the support form. |
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The new SLURM and PMIx causes some issues on some MPI jobs launched with srun. We are gradually applying fix to the nodes. |
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| We are retiring Thinlinc in favour of RDP-based remote desktop access. See the remote graphics page for details. See also the Open OnDemand page for alternative modes of access. | |
| There will be planned downtime of both Vera and Alvis for the entire day due to maintenace and system updates. UPDATE: The downtime is now over. | |
| We are bringing the downed nodes back online as ventilation seems to have improved. Be aware that problems may still occur. vera1 is down once again and we will let it remain down until further maintenance can be done. | |
| Due to ventilation issues, some of the Vera Icelake nodes, as well as some of Alvis Phase 1, the V100 and T4 nodes, will be down or unstable for some time. We will update when we know more. | |
| Due to a massive power outage in Gothenburg parts of various systems are down. We are working on bringing them back up. UPDATE 2025-07-19: The power outage seems to have caused problems with the storage systems, and as a safety precaution we must disable the running of jobs on all nodes for the time being. UPDATE 2025-07-19: We are starting to bring our systems back online as of 14:30. | |
| The vera1 login node is broken and currently down. Please use vera2 instead. | |
| C3SE now has a chatbot available to assist users with documentation and common questions. Try it here: Chalmers AI Chatbot -Chat with Documents and select the C3SE tab. | |
| A number of issues is happening on Mimer filesystem. All jobs may be affected by I/O errors. We are actively working on it. | |
| Operation of Alvis is now resuming. | |
| Due to sudden loss of external cooling in the Alvis computer hall, all Alvis nodes are shutdown. Operation will resume as soon as possible. | |
The vera1 login node has unknown likely hardware problems. Please prefer vera2 login node while we work on the problems. |
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| The Icelake nodes in Vera has now been updated to Rocky Linux 9. | |
| The Zen4 expansion of Vera will go live. All Vera login nodes will be down during the day for the swap to the new login nodes under the same names. See Vera Zen4 news page for all details. |
Current and upcoming events¶
| Date | Text |
|---|---|
| Introduction seminar for Alvis users. In this online seminar we will show you how to use Alvis. Registration required: https://indico.chalmers.se/event/354/ | |
| Introduction seminar for Alvis users. In this online seminar we will show you how to use Alvis. Registration required: https://indico.chalmers.se/event/353/ | |
| Introduction seminar for Alvis users. In this online seminar we will show you how to use Alvis. Registration required: https://indico.chalmers.se/event/352/ | |
| 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."
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.