Mesh Interface Resolution and Ghost Exchange in a Parallel Mesh Representation

Author

Tautges, Timothy J. ; Kraftcheck, Jason A. ; Bertram, Nathan ; Sachdeva, Vipin ; Magerlein, John

Author_Institution

Math. & Comput. Sci. Div., Argonne Nat. Lab., Chicago, IL, USA

fYear

2012

fDate

21-25 May 2012

Firstpage

1670

Lastpage

1679

Abstract

Algorithms are described for the resolution of shared vertices and higher-dimensional interfaces on domain-decomposed parallel mesh, and for ghost exchange between neighboring processors. Performance data is given for large (up to 64M tet and 32M hex element) meshes on up to 16k processors. Shared interface resolution for structured mesh is also described. Small modifications are required to enable the algorithm to match vertices based on geometric location, useful for joining multi-piece meshes, this capability is also demonstrated.

Keywords

computational geometry; mesh generation; parallel algorithms; domain-decomposed parallel mesh representation; geometric location; ghost exchange; mesh interface resolution; shared interface resolution; structured mesh; vertex matching; Adaptation models; Boundary conditions; Computational modeling; Indexes; Libraries; Optimization; Program processors; parallel I/O; structured mesh; unstructured mesh;

fLanguage

English

Publisher

ieee

Conference_Titel

Parallel and Distributed Processing Symposium Workshops & PhD Forum (IPDPSW), 2012 IEEE 26th International

Conference_Location

Shanghai

Print_ISBN

978-1-4673-0974-5

Type

conf

DOI

10.1109/IPDPSW.2012.208

Filename

6270841