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DTSTAMP:20250822T115805Z
LOCATION:Campussaal - Plenary Room
DTSTART;TZID=Europe/Stockholm:20250616T102000
DTEND;TZID=Europe/Stockholm:20250616T105000
UID:submissions.pasc-conference.org_PASC25_sess149_pos103@linklings.com
SUMMARY:P06 - Code-Generation of Highly Efficient Finite Element Operation
 s Using the MLIR Compiler Infrastructure
DESCRIPTION:Edward Erasmie-Jones (King's College London), Giacomo Castigli
 oni (ETH Zurich / CSCS), and David Moxey (King's College London)\n\nThe im
 mense financial and environmental cost of high performance computing (HPC)
  infrastructure demands highly efficient and hardware specific software. I
 n modern exascale hardware, the development of efficient kernels requires 
 addressing both hardware heterogeneity and the memory bandwidth bottleneck
 . A popular approach to overcoming the latter is by maximizing the floatin
 g point operations (FLOPS) per byte of memory, namely the arithmetic inten
 sity, of the numerical scheme. In computational fluid dynamics (CFD) highe
 r order numerical schemes such has the spectral/hp element method (SEM) ha
 ve been found to have a desirably high and tunable arithmetic intensity, a
 s the higher order shape functions allow each element to contribute with m
 ore resolved approximations of the dynamics being simulated. In this work 
 we present the initial stages of the development of NektarIR, a compiler f
 or the Nektar++ spectral/hp element framework. Built using the MLIR compil
 er infrastructure, NektarIR aims to facilitate the generation of highly ef
 ficient, hardware specific, implementations of finite element evaluations 
 for Nektar++.\n\nSession Chair: Chris Cantwell (Imperial College London)\n
 \n
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