Blog

Work experience at EPCC

Author: Guest blogger
Posted: 10 Apr 2017 | 16:06

Guest blogger Kara Moraw is an undergraduate Informatics student in Bonn, Germany. Here she writes about her 4-week internship with EPCC, spent working with EPCC's Nick Brown on the ARCHER outreach project.

EPCC PhD opportunity in micro-core architectures

Author: Nick Brown
Posted: 4 Apr 2017 | 14:51

At EPCC we are currently advertising a number of funded PhD opportunities (see our PhDs in HPC webpage). I am proposing a project entitled Improving the programmability of micro-core architectures, which builds on some of the work I first discussed in a previous blog post on ePython.

EPCC at the Edinburgh International Science Festival

Author: Mario Antonioletti
Posted: 3 Apr 2017 | 12:31

EPCC will be at the Edinburgh International Science Festival again along with others from the University of Edinburgh. Last year we hosted a very successful Junkyard Clusters workshop where participants constructed a PC from its constituent components. This year we will be part of the drop-in activities, showing what supercomputers can do

Big Bang Fair: Day Three

Author: Mirren White
Posted: 18 Mar 2017 | 22:36

Yesterday was Day Three of the Big Bang Fair, and it has kept delivering all the time. 

One of the most interesting things for me has been comparing this year to last year. For example, one of our most popular activities from last year, the supercomputing app, has been much quieter this year - but the beanbag sorting game has been a huge hit! 

Return to the Big Bang Fair

Author: Mario Antonioletti
Posted: 17 Mar 2017 | 07:54

The Big Bang Fair, billed as the UK's largest celebration of science, technology, engineering and maths for young people, provides our Supercomputing Sleuths event with an excellent opportunity to show the benefits of supercomputing to a host of young people through a number of targeted acitivities.

First day at BBF 2017

Author: Juan Rodriguez Herrera
Posted: 15 Mar 2017 | 22:04

During my period as a PhD student, I dealt with questions from academics, ranging from university students to full professors. However today at the Big Bang Fair (BBF) it was slightly different. This time the questions regarding what supercomputing is and what it involves came from pupils from different UK schools.

Back at the Big Bang Fair

Author: tpeet
Posted: 15 Mar 2017 | 09:57

ARCHER is back at the Big Bang Fair, the largest celebration of STEM (Science, Technology, Engineering and Maths) for young people in the UK. Held in Birmingham at the NEC over four days, there were over 70,000 visitors to the exhibition floor last year, so it will be a very busy time.

Spreading the love

Author: Adrian Jackson
Posted: 10 Mar 2017 | 13:54

Binding processes to coresThread and process binding

Note, this post was updated on the 23rd March 2017 to include how to bind threads correctly on Cray systems (aprun -cc rather than taskset)

Making sure threads and processes are correctly placed, or bound, on cores or processors is essential to ensure good performance for a range of parallel applications. 

This is not a new topic, and has been covered well by others before, ie http://www.glennklockwood.com/hpc-howtos/process-affinity.html. Generally this is just handled for you; if you're running an MPI program then your mpirun/mpiexec/aprun job launcher will do sensible process binding to cores. 

Wee Archie at AAAS 2017

Author: Nick Brown
Posted: 14 Feb 2017 | 12:47

This week I will be going to Boston for the American Association for the Advancement of Science (AAAS) annual meeting. This brings together scientists & engineers, not only from the US but the entire world, to discuss the latest developments in the field. 

Optimised tidal modelling

Author: Adrian Jackson
Posted: 2 Feb 2017 | 11:37

Fluidity for tidal modelling

Tidal model

Figure 1: Mesh for the Sound of Islay tidal simulation. Courtesy Dr Creech.

We were recently involved in a project to optimise the CFD modelling package Fluidity for tidal modelling. This ARCHER eCSE project was primarily carried out by Dr Angus Creech from the Institute of Energy Systems in Edinburgh.

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