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HPC

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 […]

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. […]

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 […]

Making a network work

Making a network work

Posted on 19 March 2015 by Thomas Green

We recently installed new nodes into our supercomputer. As part of the process we have to run tests to assess the new nodes. Since this was an extension to the […]

Working with DRMAA

Working with DRMAA

Posted on 2 March 2015 by Thomas Green

Anyone who might have read earlier posts might have come across previous post on Galaxy. This used DRMAA to submit jobs when using a PBS Pro as a job scheduler. […]

Breaking down walls

Posted on 10 November 2014 by Thomas Green

The fall of the Berlin Wall happened 25 years ago and I thought a symbolic look at how we try and break our own walls would be quite appropriate. Creating […]

Portal to a new Galaxy

Posted on 24 October 2014 by Thomas Green

Within the ARCCA team we are investigating ways we can open up high-performance computing (HPC) to a wider audience. I should add this is not just an issue within ARCCA […]