Hardware

Multi-network MPI on Intel Omni-Path

Author: Adrian Jackson
Posted: 17 Jul 2019 | 14:11

Networks

As part of the NEXTGenIO project we have a prototype HPC system that has two Intel Omni-Path networks attached to each node. The aim of having a dual-rail network setup for that system is to investigate the performance and functionality benefits of having separate networks for MPI communications and for I/O storage communications, either directing Lustre traffic and MPI traffic over separate networks, or using a separate network to access NVDIMMs over RDMA. We were also interested in the performance benefits for general applications exploiting multiple networks for MPI traffic, if and where possible.

HPC for urgent decision-making

Author: Nick Brown
Posted: 5 Jul 2019 | 11:13

The EU VESTEC research project is focused on the use of HPC for urgent decision-making and the project team will be running a workshop at SC’19.

VESTEC will build a flexible toolchain to combine multiple data sources, efficiently extract essential features, enable flexible scheduling and interactive supercomputing, and realise 3D visualisation environments for interactive explorations.

NEXTGenIO at ISC High Performance 2019

Author: Catherine Inglis
Posted: 6 Jun 2019 | 14:34

The highly successful NEXTGenIO project is now drawing to a close after nearly four years. EPCC colleagues will be at ISC19 presenting the results of the project at a booth presentation, a BoF, and a workshop presentation. Come along and find out more!

Catalyst UK programme brings Arm-based HPC system to EPCC!

Author: Michele Weiland
Posted: 8 Jan 2019 | 15:08

Earlier this year, HPE announced the Catalyst UK programme: a collaboration with Arm, SUSE and three UK universities to deploy one of the largest Arm-based high performance computing (HPC) installations in the world. EPCC was chosen as the site for one of these systems; the other two are the Universities of Bristol and Leicester.

EPCC's system (called 'Fulhame' after pioneering chemist Elizabeth Fulhame) was delivered and installed in early December. This HPE Apollo 70-based system consists of 64 compute nodes with two 32-core Cavium ThunderX2 processors (ie 4096 cores in total), 128GB of memory composed of 16 DDR4 DIMMs, and Mellanox InfiniBand interconnects. It will be made available to both industry and academia, with the aim to build applications that drive economic growth and productivity as outlined in the UK government’s Industrial Strategy.

Making complex machines easier to use efficiently

Author: Daniel Holmes
Posted: 24 Oct 2018 | 16:48

Supercomputers are getting more complex. Faster components would be impossible to cool but, by doing more with less, we can still solve bigger problems faster than ever before.

Unwrapping Tesseract: the new DiRAC system hosted by EPCC

Author: Guest blogger
Posted: 31 Jul 2018 | 16:12

Professor Peter Boyle introduces the new DiRAC system, which is hosted at EPCC's Advanced Computing Facility. 

DiRAC is part of the UK Government’s investment into the UK’s e-infrastructure to improve computing, software development, data storage, networking and distributed computing networks.

Top500: Change or no change?

Author: Adrian Jackson
Posted: 12 Dec 2017 | 11:16

November 2017 Top500

My initial impression of the latest Top500 list, released last month at the SC17 conference in Denver, was that little has changed. This might not be the conclusion that many will have reached, and indeed we will come on to consider some big changes (or perceived big changes) that have been widely discussed, but looking at the Top 10 entries there has been little movement since the previous list (released in June).

View from the storage side

Author: Adrian Jackson
Posted: 16 Aug 2017 | 15:59

Flash Memory Summit Logo

I recently attended the 2017 Flash Memory Summit, a conference primarily aimed at storage technology and originally based around flash memory, although it has expanded to cover all forms of non-volatile storage technology.

Non-volatile memory is a big deal nowadays.  It is memory that stores data even when it has no power (unlike the volatile memory in computers that lose data when power is switched off).  Flash memory is a particular form for non-volatile memory, it's been used for a long time, and has had a massive impact on consumer technology, from the storage in your cameras and phones, to SSD hard drives routinely installed in laptop and desktop systems.

Cirrus transformed into Tier-2 system

Author: Andy Turner
Posted: 19 Jun 2017 | 15:35

EPCC has received £2.4m from the Engineering and Physical Sciences Research Council (EPSRC) as part its £20m investment in six new Tier-2 HPC centres.

The Intel Parallel Computing Centre at EPCC

Author: Adrian Jackson
Posted: 15 Jun 2017 | 13:41

We are entering the fourth year of the Intel Parallel Computing Centre (IPCC). This collaboration on code porting and optimisation has focussed on improving the performance of scientific applications on Intel hardware, specifically its Xeon and Xeon Phi processors.  

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