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Abstract
Explicit strategies for the solution of finite element problems, such as crash simulation, scale well on computing platforms with thousands of cores. In contrast, it is a widely held view that implicit analysis is not suited to parallel computing. The purpose of this paper is to challenge that belief. The open source parallel finite element software, ParaFEM, uses an “element by element” approach with iterative solvers to solve problems in an implicit way; such as static equilibrium, material nonlinearity, fluid flow, and free and forced vibrations. This iterative strategy leads to a program structure similar to explicit algorithms and the consequence is excellent scalability of implicit analysis on parallel platforms. The software is modularised in such a way that the parallel code is hidden away in a library of subroutines, enabling engineers and researchers who have no training in parallel programming to adapt the software for their own needs. In this paper, we report on recent progress in communitybased extensions to ParaFEM including support for stochastic random fields, large strain plasticity, transient thermal analysis and the multiscale modelling of polycrystalline structures. We will report on how well each of those types of problem, analysed using massively parallel implicit solvers, scale on hardware platforms with tens of thousands of cores.
Original language  English 

Title of host publication  Proceedings of the NAFEMS World Congress 2015 
Publisher  NAFEMS 
Publication status  Published  21 Jun 2015 
Event  NAFEMS World Congress  San Diego, USA Duration: 21 Jun 2015 → 24 Jun 2015 
Conference
Conference  NAFEMS World Congress 

City  San Diego, USA 
Period  21/06/15 → 24/06/15 
Keywords
 Implicit
 Finite element method
 Parallel computing
 High performance computing
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PRACE Scientific and Industrial Conference 2016
Margetts, L. (Member of programme committee)
10 May 2016 → 12 May 2016Activity: Participating in or organising event(s) › Participating in a conference, workshop, exhibition, performance, inquiry, course etc › Research

Improving High Performance Computing Adoption in Engineering Simulation
Margetts, L. (Organiser)
10 Feb 2016Activity: Participating in or organising event(s) › Participating in a conference, workshop, exhibition, performance, inquiry, course etc › Research