PolyTop++: an efficient alternative for serial and parallel topology optimization on CPUs & GPUs

Leonardo S. Duarte, Waldemar Celes, Anderson Pereira, Ivan F. Ivan, Glaucio H. Paulino

Research output: Contribution to journalArticle

Abstract

This paper presents the PolyTop++, an efficient and modular framework for parallel structural topology optimization using polygonal meshes. It consists of a C++ and CUDA (a parallel computing model for GPUs) alternative implementations of the PolyTop code by Talischi et al. (Struct Multidiscip Optim 45(3):329–357 2012b). PolyTop++ was designed to support both CPU and GPU parallel solutions. The software takes advantage of the C++ programming language and the CUDA model to design algorithms with efficient memory management, capable of solving large-scale problems, and uses its object-oriented flexibility in order to provide a modular scheme. We describe our implementation of different solvers for the finite element analysis, including both direct and iterative solvers, and an iterative ‘matrix-free’ solver; these were all implemented in serial and parallel modes, including a GPU version. Finally, we present numerical results for problems with about 40 million degrees of freedom both in 2D and 3D.

Original languageEnglish (US)
Pages (from-to)845-859
Number of pages15
JournalStructural and Multidisciplinary Optimization
Volume52
Issue number5
DOIs
StatePublished - Nov 1 2015

Keywords

  • Direct solver
  • Iterative solver
  • Parallel solver
  • Polygonal elements
  • Topology optimization

ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design
  • Control and Optimization

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