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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 […]

Messing with meshes

Posted on 2 April 2015 by Thomas Green

A researcher has recently been trying to get to grips with meshes where they have scanned in some materials and would like to model this within COMSOL (multi-physics modelling package). […]

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. […]

Docking to Docker

Docking to Docker

Posted on 2 February 2015 by Thomas Green

Another month has passed and we have been very busy in ARCCA at Cardiff University with installation of the new hardware and installing new services. These are a few of […]

Putting out fires

Putting out fires

Posted on 19 January 2015 by Thomas Green

Recently we have reinstalled our operating system on a server to update to the most recent version from the vendor.  One aspect all new systems should have is some form […]