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The Fourth Conference of Research Software Engineering was held at the University of Birmingham.

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Tuesday, September 17 • 11:00 - 11:25
#1D1 - Legacy Software - A case study in optimisation of legacy software

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An old serial program for Lattice Field Theory Simulations, initially written in fixed-form Fortran during decades of research work, needed to be optimised for modern architectures. In this talk I will describe the challenges, the decisions, and the steps we took in order to improve its performance and its scientific output (which is a multi-level optimisation problem), discuss the tools used and the experience we had with them (Intel VTune, ITAC, the Scalasca suite and the BSC Performance Tools), and report our - sometimes surprising - findings.

avatar for Michele  Mesiti

Michele Mesiti

RSE, Swansea University

Tuesday September 17, 2019 11:00 - 11:25 BST
4. Aston Webb, Room WG12 Aston Webb Building