The HyTeG finite-element software framework for scalable multigrid solvers. Issue 5 (3rd September 2019)

• Record Type: Journal Article
• Authors: Kohl, Nils; Thönnes, Dominik; Drzisga, Daniel; Bartuschat, Dominik; Rüde, Ulrich
• Is Part Of: International journal of parallel, emergent and distributed systems. Volume 34:Issue 5(2019)
• Page Start: 477
• Page End: 496
• Publication Date: 2019-09-03
• Subjects: Simulation framework design -- finite elements -- structured refinement -- matrix-free -- scalable parallel solvers -- supercomputing; Parallel computers -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Computer algorithms -- Periodicals; 004.35
• DOI: 10.1080/17445760.2018.1506453
• Languages: English
• ISSNs: 1744-5760

Abstract

ABSTRACT: In this article, a new generic higher-order finite-element framework for massively parallel simulations is presented. The modular software architecture is carefully designed to exploit the resources of modern and future supercomputers. Combining an unstructured topology with structured grid refinement facilitates high geometric adaptability and matrix-free multigrid implementations with excellent performance. Different abstraction levels and fully distributed data structures additionally ensure high flexibility, extensibility, and scalability. The software concepts support sophisticated load balancing and flexibly combining finite-element spaces. Example scenarios with coupled systems of partial differential equations show the applicability of the concepts to performing geophysical simulations. GRAPHICAL ABSTRACT: