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The Alps System

Alps is a distributed HPC infrastructure managed by CSCS. Contrary to traditional HPC, it is composed of several logical units called vClusters (versatile clusters). From the users perspective, they play the role of a traditional HPC machine, each vCluster being tailored to the needs of a specific community. This setup also enables geographical distribution of vClusters which facilitates geo-redundancy. The main physical piece of Alps is hosted at CSCS in Lugano and a detailed description can be found at their documenation .

vClusters

The following table shows current clusters distribution on Alps at CSCS (only C2SM relevant clusters are shown).

vCluster Activity Share
Santis Weather & Climate ~ 500 GH nodes
Daint User Lab ~ 600 GH nodes
Clariden Machine Learning ~ 800 GH nodes
Eiger multi-core nodes

GH = Grace Hopper

More information about clusters on Alps is available on the official CSCS documentation .

Support by CSCS

General information about access, file systems, vClusters, user environments and much more can be found at the CSCS documentation .

To contact CSCS staff directly, users can join their dedicated Slack workspace , with dedicated channels for each vCluster.

Introductory Workshop Material

As an introduction to the Alps infrastructure, the material of our C2SM workshop "Switching to Alps" from August 12, 2024 is available: