We are creating a unified UKRI website that brings together the existing research council, Innovate UK and Research England websites.
If you would like to be involved in its development let us know.

Future-proofing products for next generation technologies

Abstract Circuits
(Credit: Dreamstime)

The Science and Technology Facilities Council’s (STFC) Hartree® Centre has helped Ellexus – an application profiling company - to test its tool on their leading high performance computing platforms through STFC’s Bridging for Innovators funding programme.

left-hand quote markThe expert team at the Hartree Centre have been exceptionally helpful at allowing us to demonstrate the capabilities of our tools on a large scale.right-hand quote mark

Felicity Pitchers


Ellexus specialise in I/O (input/output) profiling for high performance computing (HPC) organisations – a way of understanding how efficiently programs read and write data to and from storage. Ellexus was looking to evaluate its application profiling tools against HPC software running at a larger scale than
could be achieved in-house, particularly software running the latest versions of MPI libraries, which could allow the company to access new markets. Ellexus wanted to take advantage of the Hartree
Centre’s strong track record in code optimisation to enhance its profiling, accessing HPC and expertise.


High Performance Software Engineers worked with Ellexus to test its I/O profiling tools on a general purpose classical molecular dynamics simulation software code, DL_POLY. The team identified and suggested improvements, helping to ensure new features added to the profiling tools could be accessed using a range of code compilers. Ellexus profiling tools were used to profile DL_POLY, using performance data to understand code performance. This work identified that DL_POLY was doing more MPI file opens than expected, which meant the team could use this information to optimise DL_POLY, resulting in an 8% boost in speed – proving that Ellexus technology could be used to optimise HPC applications run at scale. The project was funded through the Bridging for Innovators programme from STFC, offering UK businesses access to facilities to fast-track solutions to industry challenges.

left-hand quote markWe have identified several ways to improve our tools and look forward to rolling them out to our customers.right-hand quote mark

Felicity Pitchers


Accessing the Hartree Centre’s HPC platforms and expertise in code optimisation provided a perfect opportunity for Ellexus to validate their I/O profiling tools by testing their capability on large-scale HPC systems. The project carried out with Hartree Centre experts not only demonstrated the effectiveness of Ellexus’ tools, but also identified new ways to further scale, enhance and future-proof its products, making it more competitive at market.

At a glance

  • Identified ways to further enhance Ellexus products
  • Understanding and evaluating code performance on HPC
  • Demonstrating the effectiveness of I/O profiling tools to boost code performance
  • Finding avenues to accelerate market competitiveness
  • Code optimisation to enhance profiling capabilities

Read the full case study

Ellexus case study (PDF, 1465 KB)

Last updated: 01 August 2019


Science and Technology Facilities Council
Switchboard: +44 (0)1793 442000