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From ALICE Documentation

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This wiki is the main documentation source for information about the Academic Leiden Interdisciplinary Cluster Environment (ALICE) cluster. ALICE is the research computing facility of the partnership Leiden University and Leiden University Medical Center. It is available to any researcher from both partners. In this wiki, we will introduce the ALICE cluster in detail.

Below you find a collapsible tree structure of our documentation set which gives you a quick overview of the full navigation tree. The root tree items are also directory accessible from the top navigation bar.

Full Navigation Tree

User Guides

This user guide will help you get started if you are new to ALICE and working on an HPC in general.

Work in progress
Work in progress
General Documentation
Advanced Use
Work in progress
Work in progress
Support
News

News

Latest News

  • 17 Aug 2022 - REMINDER - ALICE system maintenance on 22 Aug 2022: We will perform system maintenance on ALICE on 22 Aug 2022 between 09:00 and 18:00 CEST. Our primary focus will be the high-availability set up of ALICE in addition to other maintenance tasks. This will require us to take all compute and login nodes of the cluster offline. It will not be possible to run any jobs and access data on ALICE. The login nodes will be rebooted and all active terminal or X2Go sessions will be terminated. Until maintenance starts, you can continue to use ALICE as usual and submit jobs. Slurm will also continue to run your job if the requested running time will allow it to finish before the maintenance starts. If you have any questions, please contact the ALICE Helpdesk.
  • 01 Aug 2022 - ALICE system maintenance on 22 Aug 2022 - First announcement: We will perform system maintenance on ALICE on 22 Aug 2022 between 09:00 and 18:00 CEST. Our primary focus will be the high-availability set up of ALICE in addition to other maintenance tasks. This will require us to take all compute and login nodes of the cluster offline. It will not be possible to run any jobs and access data on ALICE. Until maintenance starts, you can continue to use ALICE as usual and submit jobs. Slurm will also continue to run your job if the requested running time will allow it to finish before the maintenance starts. If you have any questions, please contact the ALICE Helpdesk.
  • 01 Jun 2022 - Disabled access to old scratch storage: As previously announced, we have disabled access to the old scratch storage. We will keep the data available until 30 June 2022. Afterwards, we will start to delete data so that we can repurpose the storage within ALICE. You can request temporary access by contacting the ALICE Helpdesk. See also the wiki page: Data Storage.

Older News

For older news, please have a look at the news archive: News Archive

Events

Here you can find information about upcoming events related to ALICE.

ALICE-SHARK User Meeting 2022

Maintenance

This section is used to announce upcoming maintenance and provide information before, during and after it. For general information about our maintenance policy, please have a look here: To maintenance policy

Next Maintenance

System Maintenance on ALICE will take place on 22 Aug 2022 between 09:00 and 18:00 CEST (See the Maintenance Announcement)

We will perform system maintenance on the ALICE HPC cluster on Monday 22 August 2022 between 09:00 and 18:00.

On this day, it will not be possible to run any jobs and access data on ALICE. Until maintenance starts, you can continue to use ALICE as usual and submit jobs. Slurm will also continue to run your job if the requested running time will allow it to finish before the maintenance starts.

Our primary focus will be the high-availability set up of ALICE in addition to other maintenance tasks.

We understand that this represents an inconvenience for you. If you have any questions, please contact the ALICE Helpdesk.

Previous Maintenance days

ALICE node status

Gateway: UP
Head node: UP
Login nodes: UP
GPU nodes: UP
CPU nodes: Up
High memory nodes: UP
Storage: UP
Network: UP

Current Issues

  • Copying data to the shared scratch via sftp:
    • There is currently an issue on the sftp gateway which does prevents users from copying data to their shared scratch directory, i.e., /home/<username>/data
    • A current work-around is to use scp or sftp via the ssh gateway and the login nodes.
    • Status: Work in Progress
    • Last Updated: 30 Nov 2021, 14:56 CET


See here for other recently solved issues: Solved Issues

Publications

Articles with acknowledgements to the use of ALICE

Astronomy and Astrophysics

Computer Sciences

  • Better Distractions: Transformer-based Distractor Generationand Multiple Choice Question Filtering, Offerijns, J., Verberne, V., Verhoe, T., eprint arXiv:2010.09598, (October 2020), https://arxiv.org/abs/2010.09598

Ecology

Leiden researchers and their use of HPC

News articles featuring ALICE

  • Hazardous Object Identifier: Supercomputer Helps to Identify Dangerous Asteroids, Oliver Peckman, HPC Wire, 04 March 2020, link
  • Elf reuzestenen op ramkoers met de aarde?, Annelies Bes, 13 February 2020, Kijk Magazine, link
  • Leidse sterrenkundigen ontdekken aardscheerders-in-spé, NOVA, 12 February 2020, link
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