This paper presents an early performance assessment of the ThunderX2, the most recent Arm-based multi-core processor designed for HPC applications. We use as benchmarks well known stencil-based LBM and LQCD algorithms, widely used to study respectively fluid flows, and interaction properties of elementary particles. We run benchmark kernels derived from OpenMP production codes, we measure performance as a function of the number of threads, and evaluate the impact of different choices for data layout. We then analyze our results in the framework of the roofline model, and compare with the performances measured on mainstream Intel Skylake processors. We find that these Arm based processors reach levels of performance competitive with those of other state-of-the-art options.

Early Performance Assessment of the ThunderX2 Processor for Lattice Based Simulations

Enrico Calore
Primo
;
Alessandro Gabbana
Secondo
;
Fabio Rinaldi;Sebastiano Fabio Schifano
Penultimo
;
Raffaele Tripiccione
Ultimo
2020

Abstract

This paper presents an early performance assessment of the ThunderX2, the most recent Arm-based multi-core processor designed for HPC applications. We use as benchmarks well known stencil-based LBM and LQCD algorithms, widely used to study respectively fluid flows, and interaction properties of elementary particles. We run benchmark kernels derived from OpenMP production codes, we measure performance as a function of the number of threads, and evaluate the impact of different choices for data layout. We then analyze our results in the framework of the roofline model, and compare with the performances measured on mainstream Intel Skylake processors. We find that these Arm based processors reach levels of performance competitive with those of other state-of-the-art options.
978-3-030-43229-4
978-3-030-43228-7
ThunderX2, Lattice-Boltzmann, Lattice-QCD
File in questo prodotto:
File Dimensione Formato  
Calore2020_Chapter_EarlyPerformanceAssessmentOfTh.pdf

solo gestori archivio

Descrizione: versione editoriale
Tipologia: Full text (versione editoriale)
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 1.89 MB
Formato Adobe PDF
1.89 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2415397
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? ND
social impact