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Composite matrix construction for structured grid adaptive mesh refinement
Computer Physics Communications
Swansea University Author: Stephen Cornford
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DOI (Published version): 10.1016/j.cpc.2019.07.006
Abstract
The solution of elliptic partial differential equations on block-structured meshes is the major computational expense in many real-world problems. For example, solving the elliptic stress balance equation is the most time-consuming computational task when simulating Antarctica with the BISICLES adap...
Published in: | Computer Physics Communications |
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ISSN: | 00104655 |
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2019
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URI: | https://cronfa.swan.ac.uk/Record/cronfa51220 |
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2019-08-15T15:39:07.3101325 v2 51220 2019-07-25 Composite matrix construction for structured grid adaptive mesh refinement 17ae00ff2346b8c23d7e2b34341610a4 0000-0003-1844-274X Stephen Cornford Stephen Cornford true false 2019-07-25 SGE The solution of elliptic partial differential equations on block-structured meshes is the major computational expense in many real-world problems. For example, solving the elliptic stress balance equation is the most time-consuming computational task when simulating Antarctica with the BISICLES adaptive mesh ice sheet model. Up till now, BISICLES and other applications based on the Chombo multiphysics library have depended on a geometric multigrid (GMG) method. This paper describes the extension of Chombo to make use of the general purpose algebraic multigrid (AMG) methods available in PETSc (Portable, Extensible Toolkit for Scientific Computation). Tests with the BISICLES model indicate that an AMG method (BoomerAMG) outperforms the GMG method. Journal Article Computer Physics Communications 00104655 31 12 2019 2019-12-31 10.1016/j.cpc.2019.07.006 COLLEGE NANME Geography COLLEGE CODE SGE Swansea University 2019-08-15T15:39:07.3101325 2019-07-25T14:31:40.2724758 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Mark F. Adams 1 Stephen Cornford 0000-0003-1844-274X 2 Daniel F. Martin 3 Peter McCorquodale 4 0051220-07082019135146.pdf amr_comp_gridv2.pdf 2019-08-07T13:51:46.2270000 Output 1554509 application/pdf Accepted Manuscript true 2020-07-23T00:00:00.0000000 Released under the terms of a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND). true eng |
title |
Composite matrix construction for structured grid adaptive mesh refinement |
spellingShingle |
Composite matrix construction for structured grid adaptive mesh refinement Stephen Cornford |
title_short |
Composite matrix construction for structured grid adaptive mesh refinement |
title_full |
Composite matrix construction for structured grid adaptive mesh refinement |
title_fullStr |
Composite matrix construction for structured grid adaptive mesh refinement |
title_full_unstemmed |
Composite matrix construction for structured grid adaptive mesh refinement |
title_sort |
Composite matrix construction for structured grid adaptive mesh refinement |
author_id_str_mv |
17ae00ff2346b8c23d7e2b34341610a4 |
author_id_fullname_str_mv |
17ae00ff2346b8c23d7e2b34341610a4_***_Stephen Cornford |
author |
Stephen Cornford |
author2 |
Mark F. Adams Stephen Cornford Daniel F. Martin Peter McCorquodale |
format |
Journal article |
container_title |
Computer Physics Communications |
publishDate |
2019 |
institution |
Swansea University |
issn |
00104655 |
doi_str_mv |
10.1016/j.cpc.2019.07.006 |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
department_str |
School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography |
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description |
The solution of elliptic partial differential equations on block-structured meshes is the major computational expense in many real-world problems. For example, solving the elliptic stress balance equation is the most time-consuming computational task when simulating Antarctica with the BISICLES adaptive mesh ice sheet model. Up till now, BISICLES and other applications based on the Chombo multiphysics library have depended on a geometric multigrid (GMG) method. This paper describes the extension of Chombo to make use of the general purpose algebraic multigrid (AMG) methods available in PETSc (Portable, Extensible Toolkit for Scientific Computation). Tests with the BISICLES model indicate that an AMG method (BoomerAMG) outperforms the GMG method. |
published_date |
2019-12-31T04:03:02Z |
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1763753257797156864 |
score |
10.999524 |