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High-performance finite elements with MFEM

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arxiv 2402.15940 v1 pith:DUYHVLVQ submitted 2024-02-25 cs.MS cs.NAmath.NA

Julian Andrej , Nabil Atallah , Jan-Phillip Bäcker , John Camier , Dylan Copeland , Veselin Dobrev , Yohann Dudouit , Tobias Duswald
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Brendan Keith Dohyun Kim Tzanio Kolev Boyan Lazarov Ketan Mittal Will Pazner Socratis Petrides Syun'ichi Shiraiwa Mark Stowell Vladimir Tomov
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classification cs.MScs.NAmath.NA
keywords finitemfemelementexascaleacrossapplicationsdiscretizationshigh-performance
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The MFEM (Modular Finite Element Methods) library is a high-performance C++ library for finite element discretizations. MFEM supports numerous types of finite element methods and is the discretization engine powering many computational physics and engineering applications across a number of domains. This paper describes some of the recent research and development in MFEM, focusing on performance portability across leadership-class supercomputing facilities, including exascale supercomputers, as well as new capabilities and functionality, enabling a wider range of applications. Much of this work was undertaken as part of the Department of Energy's Exascale Computing Project (ECP) in collaboration with the Center for Efficient Exascale Discretizations (CEED).

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    A point-location and interpolation method for high-order curved meshes is extended to GPUs and surface meshes, giving up to 12.7x faster searches on GPU hardware.

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