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dc.contributor.author
Hapla, Václav
dc.contributor.author
Knepley, Matthew G.
dc.contributor.author
Afanasiev, Michael
dc.contributor.author
Boehm, Christian
dc.contributor.author
van Driel, Martin
dc.contributor.author
Krischer, Lion
dc.contributor.author
Fichtner, Andreas
dc.date.accessioned
2021-03-12T07:59:08Z
dc.date.available
2021-01-19T07:29:29Z
dc.date.available
2021-01-19T08:04:57Z
dc.date.available
2021-03-12T07:59:08Z
dc.date.issued
2021
dc.identifier.issn
1064-8275
dc.identifier.issn
1095-7197
dc.identifier.other
10.1137/20M1332748
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/463520
dc.description.abstract
Large-scale PDE simulations using high-order finite-element methods on unstructured meshes are an indispensable tool in science and engineering. The widely used open-source PETSc library offers an efficient representation of generic unstructured meshes within its DMPlex module. This paper details our recent implementation of parallel mesh reading and topological interpolation (computation of intermediate codimensions from a cell-vertex mesh) into DMPlex. We apply these developments to seismic wave propagation scenarios on Mars as a sample application. The principal motivation is to overcome single-node memory limits and reach mesh sizes which were impossible before. Moreover, we demonstrate that scalability of I/O and topological interpolation goes beyond 12'000 cores, and memory imposed limits on maximum mesh size vanish.
en_US
dc.language.iso
en
en_US
dc.publisher
Society for Industrial and Applied Mathematics
en_US
dc.subject
Unstructured mesh
en_US
dc.subject
Directed acyclic graph
en_US
dc.subject
Partitioning
en_US
dc.subject
Topological interpolation
en_US
dc.subject
Parallel I/O
en_US
dc.subject
PETSc
en_US
dc.subject
DMPlex
en_US
dc.subject
Seismic waveform modeling
en_US
dc.subject
Spectral-element method
en_US
dc.title
Fully parallel mesh I/O using PETSC DMPLEX with an application to waveform modelling
en_US
dc.type
Journal Article
dc.date.published
2021-03-11
ethz.journal.title
SIAM Journal on Scientific Computing
ethz.journal.volume
43
en_US
ethz.journal.issue
2
en_US
ethz.journal.abbreviated
SIAM j. sci. comput.
ethz.pages.start
C127
en_US
ethz.pages.end
C153
en_US
ethz.grant
Salvus for next-generation full-waveform ultrasonic imaging solutions
en_US
ethz.grant
Centre of Excellence for Exascale in Solid Earth
en_US
ethz.grant
ETH Zurich Postdoctoral Fellowship Program II
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Philadelphia, PA
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03971 - Fichtner, Andreas / Fichtner, Andreas
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03971 - Fichtner, Andreas / Fichtner, Andreas
ethz.grant.agreementno
175322
ethz.grant.agreementno
823844
ethz.grant.agreementno
608881
ethz.grant.fundername
SNF
ethz.grant.fundername
EC
ethz.grant.fundername
EC
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.program
Bridge - Proof of Concept
ethz.grant.program
H2020
ethz.grant.program
FP7
ethz.date.deposited
2021-01-19T07:29:36Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-03-12T07:59:19Z
ethz.rosetta.lastUpdated
2022-03-29T05:44:27Z
ethz.rosetta.versionExported
true
ethz.COinS
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