ForestClaw: Hybrid forest-of-octrees AMR for hyperbolic conservation laws

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Title:Main Title: ForestClaw: Hybrid forest-of-octrees AMR for hyperbolic conservation laws
Description:Abstract: We present a new hybrid paradigm for parallel adaptive mesh refinement (AMR) that combines the scalability and lightweight architecture of tree-based AMR with the computational efficiency of patch-based solvers for hyperbolic conservation laws. The key idea is to interpret each leaf of the AMR hierarchy as one uniform compute patch in Rd with md degrees of freedom, where m is customarily between 8 and 32. Thus, computation on each patch can be optimized for speed, while we inherit the flexibility of adaptive meshes. In our work we choose to integrate with the p4est AMR library since it allows us to compose the mesh from multiple mapped octrees and enables the cubed sphere and other nontrivial multiblock geometries. We describe aspects of the parallel implementation and close with scalings for both MPI-only and OpenMP/MPI hybrid runs, where the largest MPI run executes on 16,384 CPU cores.
Identifier:10.3233/978-1-61499-381-0-253 (DOI)
Responsible Party
Creators:Carsten Burstedde (Author), Donna Calhoun (Author), Kyle Mandli (Author), Andy R. Terrel (Author)
Publisher:IOS Press
Publication Year:2014
Topic
TR32 Topic:Atmosphere
Related Subproject:D8
Subjects:Keywords: Adaptive mesh refinement, Parallel Computing, Numerical Methods
File Details
Filename:BursteddeCalhounMandliEtAl13.pdf
Data Type:Text - Event Paper
Size:10 Pages
File Size:300 KB
Date:Submitted: 07.08.2013
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
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Download Permission:Only Project Members
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Licence:[TR32DB] Data policy agreement
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Publication Status:Published
Review Status:Peer reviewed
Publication Type:Event Paper
Proceedings Title:Advances in Parallel Computing
Volume:25
Number of Pages:10 (253 - 262)
Event:International Conference on Parallel Computing - ParCo2013
Event Type:Conference
Event Location:Munich, Germany
Event Duration:10th of September, 2013 - 13th of September, 2013
Event Website:http://www.mac.tum.de/parco2013/
Metadata Details
Metadata Creator:Constanze Curdt
Metadata Created:18.09.2014
Metadata Last Updated:18.09.2014
Subproject:D8
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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