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update CSCS Piz Daint information for 2024

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title: PSI HPC@CSCS
#tags:
#keywords:
last_updated: 13 April 2022
last_updated: 3 May 2024
#summary: ""
sidebar: CSCS_sidebar
permalink: /CSCS/index.html
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## PSI HPC@CSCS
For offering high-end HPC sources to PSI users, PSI has a long standing collaboration with
the national supercomputing centre CSCS (since 2005). Some of the resources are procured by
central PSI funds while users have the optionsof an additional buy-in at the same rates.
PSI has a long standing collaboration with CSCS for offering high end
HPC resources to PSI projects. PSI had co-invested in CSCS' initial
Cray XT3 supercomputer *Horizon* in 2005 and we continue to procure a share on the
CSCS flagship systems.
### PSI resources at Piz Daint
The share is mainly intended for projects that cannot profit from applying for regular
[CSCS user lab allocation schemes.](https://www.cscs.ch/user-lab/allocation-schemes).
We can also help PSI groups to procure additional resources based on the PSI
conditions - please contact us in such a case.
The yearly computing resources at CSCS for the PSI projects are in general 627,000 NH (Node Hours).
The yearly storage resources for the PSI projects is a total of 80TB. These resources are
centrally financed, but in addition experiments can individually purchase more resources.
### Capacity of PSI resources at CSCS
For 2024 PSI we have a share of 400'000 NH (Node Hours) on [Piz Daint](https://www.cscs.ch/computers/piz-daint), and 65 TB of storage.
CSCS plans to decommission Piz Daint during 2024. All allocations
will be converted to allocations on the new user lab on the CSCS Alps
infrastructure. Users will be informed about the migration process.
### How to request a PSI project
A survey is sent out in the third quarter of each year. This survey is used to request
CSCS resources for the upcoming year.
A survey is sent out to subscribed users once per year, usually in the third quarter. It serves for collecting the CSCS resources requests for the upcoming year.
Users registered in the **PSI HPC@CSCS mailing list** <psi-hpc-at-cscs@lists.psi.ch> will
receive notification and details about the survey, in example:
* Link to the survey
* Update of resource changes
* Other details of the process
be contacted to take part in the yearly survey. Please [subscribe to the list](https://psilists.ethz.ch/sympa/subscribe/psi-hpc-at-cscs) if you are interested.
Generally users need to specify in the survey the total resources they intend to use
next year and also how they would like to split it over the 4 quarters (e.g. 25%, 25%,
25%, 25%). In general, we provide the possibility to adapt the distribution over the
course of next year if required. The minimum allocation over a year is 10,000 node hours.
Users need to specify in the survey the total resources they intend to
use next year and also how this is to be split over the 4 quarters
(e.g. 25%, 25%, 25%, 25%), since CSCS allocates recources on a
quarterly basis. We provide the possibility to adapt the distribution
over the course of the active year or shift unused resources to other
projects (contact us on the mailing list).
By default allocated nodes are on the CPU partition of PizDaint (36 cores per node).
However, allocations to the GPU partition are also possible (1 x NVIDIA P100 and 12cores per
node), but needs to be splicitly stated in the survey.
However, allocations to the GPU partition are also possible (1 x NVIDIA P100 and 12 cores per
node).
### PSI resources at Piz Daint
#### 2023
The yearly computing resources at CSCS for the PSI projects in 2023 are 522,500 NH (Node Hours). The yearly storage resources for the PSI projects is a total of 80TB.
These resources are centrally financed, but in addition experiments can individually purchase more resources.
PizDaint resource distribution for the different PSI projects in 2023 is detailed in the following Excel file: [PSI_CSCSAllocations2023.xltx]({{ site.url }}/downloads/CSCS/PSI_CSCSAllocations2023.xltx) directly.
### Piz Daint total resources
References:
### CSCS Systems reference information
* [CSCS User Portal](https://user.cscs.ch/)
* [Piz Daint Information](https://www.cscs.ch/computers/piz-daint/)
* [Piz Daint: One of the most powerful supercomputers in the world](https://www.cscs.ch/publications/news/2017/piz-daint-one-of-the-most-powerful-supercomputers-in-the-world)
## Contact information
* Contact responsibles:
* Mail list contact: <psi-hpc-at-cscs-admin@lists.psi.ch>
* PSI Contacts:
* Mailing list contact: <psi-hpc-at-cscs-admin@lists.psi.ch>
* Marc Caubet Serrabou <marc.caubet@psi.ch>
* Derek Feichtinger <derek.feichtinger@psi.ch>
* Mailing list for receiving user notifications: psi-hpc-at-cscs@lists.psi.ch [(subscribe)](https://psilists.ethz.ch/sympa/subscribe/psi-hpc-at-cscs)