Software development

Talking HPC with the Omega Tau podcast

Author: Iain Bethune
Posted: 11 Aug 2014 | 09:36

Omega Tau: science and engineering in your headphones is a STEM-themed podcast produced by Markus Völter and Nora Ludewig which covers a wide range of interesting topics including aerospace, spaceflight, computing and physical sciences in great detail through interviews and discussions with area experts.

PRACE Summer of HPC 2014

Author: Nick Brown
Posted: 4 Aug 2014 | 11:38

This summer we have two students who have joined us for 9 weeks as part of the Summer of HPC programme. It is a great idea; in working on an HPC project not only do the students gain experience and enthusiasm for the field but also the actual work done on the projects is useful and important too.

Autotuning NekBone for OpenACC

Author: Luis Cebamanos
Posted: 3 Jul 2014 | 12:12

Nek5000 being used to simulate of turbulent thermal transport in sodium-cooled reactor cores. Courtesy of Argonne National Laboratory.

Heterogeneous HPC architectures are becoming increasingly prevalent in the Top500 list with CPU-based nodes being enhanced by accelerators or coprocessors optimized for floating-point calculations. This trend is likely to increase as we move towards Exascale (1018 flops) capable systems and it is vital that the relevant HPC applications are able to exploit this heterogeneity [1, 2]. 

Optimising OpenMP implementation of Tinker, a molecular dynamics modelling package

Author: Weronika Filinger
Posted: 3 Jul 2014 | 11:42

Do you use scientific codes in your research? Are the things you can do with it limited by the execution time? The code has been parallelised but does not scale well? How should you go about improving the performance? What can you do when you do not have full understanding of the code? There are some general steps that can be taken to improve the performance of parallelised codes. In this article I will describe briefly the process I have undertaken to optimise the parallel performance of a computational chemistry package, TINKER, as part of the EPCC/SSI APES project.

SPRINT v1.0.6 released! OpenMPI and R V3 compatible

Author: Terry Sloan
Posted: 30 Jun 2014 | 13:30
 
EPCC and the Division of Pathway Medicine at the University of Edinburgh have released version 1.0.6 of the SPRINT R software package. This is compatible with R Version 3 and now supports OpenMPI as well as MPICH.

EPCC wins HPC Innovation Excellence Award

Author: Adrian Jackson
Posted: 24 Jun 2014 | 14:10

Electrostatic potential fluctuations in an annular region at mid-radius in the MAST tokamak, from a gyrokinetic simulation of the saturated turbulence using the GS2 code. A wedge of plasma has been removed from the visualisation so as to view the nature of the fluctuations inside the annulus.EPCC is delighted to be part of a team that has won an HPC Innovation Excellence Award. Presented at the International Supercomputing Conference (ISC14) in Leipzig (22-26 June 2014), the awards recognise outstanding application of HPC Computing for Business and Scientific Achievements.

Causing a Storm in MPI: easier data processing for scientists

Author: Amy Krause
Posted: 17 Jun 2014 | 15:00

After several years of working with users who are not computer scientists (seismologists and geoscientists), we have realised two main points: these communities usually have problems that should be addressed with parallel computing, but they don't often have the skills and training to do so. We set out to build a programming library, Dispel4Py, that both enables users to easily write a description of a data-processing application and takes care of running that application in different parallel environments.

EPCC at ISC'14: come and say hello!

Author: Nick Brown
Posted: 13 Jun 2014 | 12:06

EPCC will be exhibiting in Booth 920.

International Supercomputing Conference (ISC) is one of the main events in the field of high performance computing, networking and storage. It has a diverse programme of keynote talks, research presentations, tutorials, BoFs and satellite events provided by 300 expert speakers along with over 170 exhibitors and 3,000 attendees. As usual, there will be a significant EPCC representation.

CFD: parallel sustainability with TPLS

Author: Mike Jackson
Posted: 28 Apr 2014 | 16:20

Mathematical modelling of complex fluid flows has practical application within many industrial sectors including energy, the environment and health. Flow modelling can include oil and gas flows in long-distance pipelines or refinery distillation columns, liquid cooling of micro-electronic devices, carbon capture and cleaning processes, water treatment plants, blood flows in arteries, and enzyme interactions. Multi-phase flow modelling models flows consisting of gases, fluids and solids within a single system eg steam and water, or oil and gas within a pipe, or coal dust in the air.

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