HPC facilities

EPCC’s ARM system: comparing the performance of MPI implementations

Author: Nick Brown
Posted: 9 Dec 2019 | 12:48

MVAPICH is a high performance implementation of MPI. It is specialised for InfiniBand, Omni-Path, Ethernet/iWARP, and RoCE communication technologies, but people generally use the default module loaded on their system. This is important because, as HPC programmers, we often optimise our codes but overlook the potential performance gains of better choice of MPI implementation.

Solve CFD problems from your desktop

Author: Guest blogger
Posted: 29 Nov 2019 | 11:50

ENGYS is a global computer software company specialising in the development and distribution of computational fluid dynamics (CFD) and design optimisation solutions for enterprises based on open-source technologies. The company’s software products include HELYX, a general-purpose CFD and design optimisation package for engineering applications, and ELEMENTS, a dedicated computer simulation software for automotive design.

Building a home for the World-Class Data Infrastructure

Author: Paul Clark
Posted: 28 Nov 2019 | 09:31

Building on existing excellence, our new high resiliency room will provide the state-of-the-art computing and data storage infrastructure needed to develop the technologies that will underpin data-driven innovation.

The World-Class Data Infrastructure (WCDI) is a core component of the Data Driven Innovation (DDI) Programme that forms an integral part of the Edinburgh and South East Scotland City Deal investment proposition.

Protecting research data

Author: Anne Whiting
Posted: 14 Nov 2019 | 11:38

We are delighted to announce our success in passing and retaining ISO 9001 quality certification and ISO 27001information security certification for the delivery of National HPC Services and Data Services.

A public UK HPC knowledge base

Author: Andy Turner
Posted: 11 Nov 2019 | 08:49

Photo by Glen Noble on UnsplashIn this blog post I consider how we (as the UK HPC community) could create a community HPC technical knowledge base that would allow us to share and reuse useful technical information. Much of these thoughts came out of discussions at the HPC Champions meeting that took place on 16 September 2019 alongside the UK RSE Conference 2019 in Birmingham, UK along with subsequent discussions at the monthly HPC RSE calls.

ARCHER Data Transfer Guide now updated

Author: Caoimhin Laoide-Kemp
Posted: 13 Sep 2019 | 10:39

As ARCHER and the UK Research Data Facility (RDF) are both coming to the end of their service, many users will have to transfer their data to their own machines. Because of this, the ARCHER Data Transfer Guide has been updated to give more precise and up-to-date information about best practices for transferring data between ARCHER, the RDF, and remote machines.

My HPC-Europa visit to Cambridge

Author: Guest blogger
Posted: 29 Jul 2019 | 16:27

Hi! My name is Concetta Cozza. I am a PhD student in Life Science at University ‘Magna Graecia’ of Catanzaro. This summer I visited the research group of Professor Michele Vendruscolo based at the University of Cambridge for three months with the HPC-Europa3 transnational access programme.

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.

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!

On the frontline of energy-efficient computing

Author: Paul Clark
Posted: 7 Jan 2019 | 15:14

The Advanced Computing Facility (ACF) on the outskirts of Edinburgh is the high performance computing data centre of EPCC.

Built in the 1970s and operated by EPCC since the turn of the millennium, the ACF site has had significant investment over the years. At present, there are three Computer Rooms, imaginatively called: Computer Room 1 (CR1), Computer Room 2 (CR2), and Computer Room 3 (CR3).

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