14-18 October 2013
Amsterdam, Beurs van Berlage
Europe/Amsterdam timezone

Is the Intel Xeon Phi processor fit for HEP workloads?

17 Oct 2013, 11:00
Effectenbeurszaal (Amsterdam, Beurs van Berlage)


Amsterdam, Beurs van Berlage

Oral presentation to parallel session Software Engineering, Parallelism & Multi-Core Software Engineering, Parallelism & Multi-Core


Andrzej Nowak (CERN)


This paper summarizes the five years of CERN openlab’s efforts focused on the Intel Xeon Phi co-processor, from the time of its inception to public release. We consider the architecture of the device vis a vis the characteristics of HEP software and identify key opportunities for HEP processing, as well as scaling limitations. We report on improvements and speedups linked to parallelization and vectorization on benchmarks involving software frameworks such as Geant4 and ROOT. Finally, we extrapolate current software and hardware trends and project them onto accelerators of the future, with the specifics of offline and online HEP processing in mind.

Primary authors

Dr Alfio Lazzaro (CRAY Research) Andrzej Nowak (CERN) Liviu Valsan (CERN) Mr Sverre Jarp (CERN)


Presentation Materials