IGA-ADS: Isogeometric Analysis FEM using ADS solver

Published: 13-04-2017| Version 1 | DOI: 10.17632/pbpsyzyvfy.1
Marcin M. Los,
Maciej Wozniak,
Maciej Paszynski,
Andrew Lenharth,
Muhamm Amber Hassaan,
Keshav Pingali


In this paper we present a fast explicit solver for solution of non-stationary problems using L2 projections with isogeometric finite element method. The solver has been implemented within GALOIS framework. It enables for parallel multi-core simulations of different time-dependent problems, in 1D, 2D, or 3D. We have prepared the solwer framework in a way that enables for direct implementation of the selected PDE and corresponding boundary conditions. In this paper we describe the installation, implemetation of exemplary three PDEs, and execution of the simulations on multi-core Linux cluster nodes. We consider three case studies, including heat transfer, linear elasticity, as well as non-linear flow in heterogenous media. The presented package generates output suitable for interfacing with Gnuplot and ParaView visualisation software. The exemplary simulations show near perfect scalabilty on Gilbert shared-memory node with four Intel® Xeon® CPU E7-4860 processors, each possessing 10 physical cores (for a total of 40 cores).