Performance of parallel QR factorization methods on the NVIDIA Grace CPU Superchip
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F25%3A00637102" target="_blank" >RIV/67985840:_____/25:00637102 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.21136/panm.2024.03" target="_blank" >http://dx.doi.org/10.21136/panm.2024.03</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21136/panm.2024.03" target="_blank" >10.21136/panm.2024.03</a>
Alternative languages
Result language
angličtina
Original language name
Performance of parallel QR factorization methods on the NVIDIA Grace CPU Superchip
Original language description
This article studies several algorithms for QR factorization based on hierarchical Householder reflectors organized into elimination trees, which are particularly suited for tall-and-skinny matrices and allow parallelization. We examine the effect of various parameters on the performance of the tree-based algorithms. The work is accompanied with a custom implementation that utilizes a task-based runtime system (OpenMP or StarPU). The same algorithm is implemented in the PLASMA library. The performance evaluation is done on the recent NVIDIA Grace CPU Superchip.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10102 - Applied mathematics
Result continuities
Project
<a href="/en/project/GA23-06159S" target="_blank" >GA23-06159S: Vortical structures: advanced identification and efficient numerical simulation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Programs and Algorithms of Numerical Mathematics 22 : Proceedings of Seminar
ISBN
978-80-85823-74-5
ISSN
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e-ISSN
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Number of pages
12
Pages from-to
29-40
Publisher name
Matematicky ustav AV CR, v. v. i.
Place of publication
Praha
Event location
Hejnice
Event date
Jun 23, 2024
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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