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Space-time adaptivity in the XBraid library Falgout, Robert
Description
Since clock speeds are no longer increasing, time integration is becoming a sequential bottleneck. The multigrid reduction in time (MGRIT) algorithm is an approach for exploiting parallelism in the time dimension that is designed to build on existing codes and time integration techniques. The XBraid library is an open source implementation of MGRIT. One important technique used by current simulation codes is adaptivity in both space and time. In this talk, we discuss approaches taken in XBraid to support adaptivity by exploring several application problems that employ a combination of mesh refinement, mesh motion, and temporal refinement.
Item Metadata
Title |
Space-time adaptivity in the XBraid library
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2016-12-01T09:36
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Description |
Since clock speeds are no longer increasing, time integration is
becoming a sequential bottleneck. The multigrid reduction in time
(MGRIT) algorithm is an approach for exploiting parallelism in the
time dimension that is designed to build on existing codes and time
integration techniques. The XBraid library is an open source
implementation of MGRIT. One important technique used by current
simulation codes is adaptivity in both space and time. In this talk,
we discuss approaches taken in XBraid to support adaptivity by
exploring several application problems that employ a combination of
mesh refinement, mesh motion, and temporal refinement.
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Extent |
29 minutes
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Subject | |
Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: Lawrence Livermore National Laboratory
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Series | |
Date Available |
2017-05-15
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0347491
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Faculty
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International