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Software

Finding the key to your locks

Finding the key to your locks

Posted on 24 November 2016 by Thomas Green

Websites can be very useful for HPC to allow easier access. Recently we had an issue with a website we use and learned a few things on the way. Know […]

Mods and rockers

Mods and rockers

Posted on 29 September 2016 by Thomas Green

Modules are used on many supercomputers since it allows multiple versions of software to be easily chosen to be loaded into a users environment. We would now like to show […]

The art of restarting

The art of restarting

Posted on 27 April 2016 by Thomas Green

Limits on runtimes Running jobs on a supercomputer can sometimes involve letting the job run for a long time. A long time in this instance is longer than the default […]

Developing Software

Developing Software

Posted on 25 April 2016 by Andrew Williams

The next ARCCA drop in session at the Queen's buildings will be occuring this Thursday, the 28th April at 2pm in the Trevithick library room 1.15. This is up the […]

Drop-in session at the Queen’s Buildings

Posted on 24 February 2016 by Andrew Williams

This Thursday (the 25th February), ARCCA will be holding a drop-in session in the Trevithick library room 1.15, from 2pm to 3.30pm. These drop-in sessions are an opportunity for the […]

Rose and Managing Workflows

Rose and Managing Workflows

Posted on 9 December 2015 by Andrew Williams

How would you like a tool that would allow you to: A Rose workflow in progress. Write and maintain workflows more efficient and sophisticated than an existing job submission script. […]

Perls of wisdom

Perls of wisdom

Posted on 9 November 2015 by Thomas Green

It has been a long summer and it is time again to create a little post for a recent encounter on our supercomputer. Errors in Perl Perl is a common […]

Summarising job performance

Summarising job performance

Posted on 13 August 2015 by Thomas Green

Recently we have implements an automatic job summary which is printed at the end of a user's job that run on our supercomputer at Cardiff University. These job summaries are […]

Research seminar – Accelerating computing

Research seminar – Accelerating computing

Posted on 2 July 2015 by Thomas Green

Using accelerators such as GPUs and Intel Phi technologies are becoming a popular method to extend the performance of certains codes. ARCCA is holding a research seminar which covers this […]

Floating in numbers

Floating in numbers

Posted on 26 June 2015 by Thomas Green

Just like an iceberg, floating point numbers can have hidden danger lurking just under the surface. A recent email through a mailing list reminded me about the subtlties of handling […]