¶
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.
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 |
|---|---|
| Due to high priority electrical work in the computer hall we need to cut power to the Vera Icelake nodes sometime in January. | |
As it is not known when the necessary spare parts arrive, we have opted to not preemptively keep the Icelake nodes drained, but any running jobs will be interrupted when power is cut. Ensure that any long running jobs on -C ICELAKE checkpoint frequently. Skylake nodes should not be affected. |
|
| To better adhere to the Waymo license agreement we are changing the access mode. We will restrict access to the dataset starting in the second half of January this coming year. See our Waymo license instructions. | |
| We were experiencing some hardware issues since yesterday, which affected both clusters to a large degree. This issue appears to now be solved. | |
| Due to license restrictions centre provided conda containers and modules that uses default or anaconda channels will be replaced or removed. See our conda documentation. | |
44 new Vera ICELAKE nodes are now online in the main partition. Remember you have to request ICELAKE specifically to use these as the older SKYLAKE is still the default. |
|
| Maintenance stop of all A100, A40 and CPU nodes on Alvis starting 13:00 as we need to replace a broken expansion valve in the central water cooling loop. Work is expected to finish quickly. Jobs with walltime that exceed this time will not start until after the stop. You can shorten your walltime and things will continue to run up until the stop. | |
| Thunderstorm killed the power in the KB computer hall, taking down all of Vera, all of Alvis phase 1. | |
Vera system upgrades: Firmware updates, RockyLinux 8.9, Mellanox 5.8. /mimer is now mounted on Vera. /apps is mounted to a new filesystem. The module tree will change slightly. The same firmware, OS, driver upgrades will also be applied on Alvis soon. |
|
| Network problem reoccurred. Problem has now been isolated to a single faulty piece of network equipment which have managed to cause massive packet loss throughout the networks. Clusters have once again been restored to functional order. | |
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. |
|
| - | Chalmers e-Commons is still hiring.; system administrators and systems engineer. |
Current and upcoming events¶
| Date | Text |
|---|---|
| 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. | |
| Introduction seminar for Alvis users. In this online seminar we will show you how to use Alvis. Registration required: https://indico.chalmers.se/event/153/ |
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.