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ARCHER2 Weekly Newsletter

By ARCHER2 Service on October 11, 2023

Tags: newsletters 

Efficient Parallel IO

Online, 1 November 2023 09:30 - 16:30 GMT

One of the greatest challenges to running parallel applications on large numbers of processors is how to handle file IO. Standard Unix IO routines are not designed with parallelism in mind, and IO overheads can grow to dominate the overall runtime. Parallel file systems are optimised for large volumes of data, but performance can be far from optimal if every process opens its own file or if all IO is funnelled through a single controller process.

This hands-on course explores a range of issues related to parallel IO. It uses ARCHER2 and its parallel Lustre file system as a platform for the exercises; however, almost all the IO concepts and performance considerations are applicable to any parallel system.

Full details and regsitration

ARCHER2 User Survey 2023

We are committed to continually improving the ARCHER2 Service and would like to request your input to help us understand what is important to you, where the Service is working well and where there is scope for improvement.

The ARCHER2 Annual User Survey consists of just a few questions and should take only a few minutes of your time to complete. There are opportunities to add more detailed comments if you wish.

For each survey response received, we will donate £1 to Save The Children.

Complete the survey

Thank you in advance for taking the time to complete this survey. The responses will be used to try and improve the service for you and to help identify key areas for service development.

ARCHER2 Image and Video Competition 2023 results

We are pleased to announce the winners as follows:

Winning Image and Overall Winner: Max Winokan, University of Surrey, Quantum Biology DTC with their image “Modelling proton tunnelling in DNA replication”.

Winning Video: Dr Eric Breard, School of Geoscience, University of Edinburghwith their video “Mirroring a Pyroclastic Flow Experiment using Large-Eddy Simulation”.

Winning Early Career Researcher entry : Carlos Edgar Lopez Barrera, Queen Mary University of London, SEMS with their video “Silico model for assessing individual responses to irregular heart rhythm treatments”.

View the gallery of all the submitted images and videos

As in previous years, we plan to produce a printed calendar featuring some of the images from the competition – you are most warmly invited to sign up to receive a copy, and these will be posted out in time for the new year.

Recently added known issues

The “Known Issues” page of the ARCHER2 Documentation https://docs.archer2.ac.uk/known-issues/ lists all current open known issues including a description of the issue, its symptoms and any work-arounds.

  • No recent issues

Upcoming ARCHER2 Training

Further details of upcoming training

We always welcome researchers wishing to present their work in a webinar - please contact the Service Desk if you would be interested in presenting your work.

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Recordings of past courses

Recordings of past virtual tutorials