Strategies to optimize the LU factorization algorithm on multicore computers

Autores
Soler, Janet; Ortiz, Javier; Wolfmann, Aaron Gustavo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Fil: Soler, Janet. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Fil: Ortiz, Javier. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Fil: Wolfmann, Aaron Gustavo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
The number of cores in multicore computers has an irreversible tendency to increase. Also, computers with multiple sockets to insert multicore chips are based on a complex hardware design and are becoming more common. To parallelize the algorithms that run on this type of computers in order to obtain a higher performance rate, is a goal that can only be achieved by taking into account hardware architecture. As hardware evolves, so must software. This leads to old parallelization strategies quickly become obsolete. This paper presents a series of alternatives for parallelization the LU factorization algorithm and its results intended to running on a multicore system. Simple strategies lead to poor results. This study presents complex strategies that merge double levels of parallelism with asynchronous scheduling whose results reach up to the State-of-the-art in the field and even go further.
http://hpc2013.hpclatam.org/talks.html#fullpaper17
Fil: Soler, Janet. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Fil: Ortiz, Javier. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Fil: Wolfmann, Aaron Gustavo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Ciencias de la Computación
Materia
Hardware architecture
Software
Multicore system
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Repositorio
Repositorio Digital Universitario (UNC)
Institución
Universidad Nacional de Córdoba
OAI Identificador
oai:rdu.unc.edu.ar:11086/28443
Acceder
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oai_identifier_str oai:rdu.unc.edu.ar:11086/28443
network_acronym_str RDUUNC
repository_id_str 2572
network_name_str Repositorio Digital Universitario (UNC)
spelling Strategies to optimize the LU factorization algorithm on multicore computersSoler, JanetOrtiz, JavierWolfmann, Aaron GustavoHardware architectureSoftwareMulticore systemFil: Soler, Janet. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.Fil: Ortiz, Javier. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.Fil: Wolfmann, Aaron Gustavo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.The number of cores in multicore computers has an irreversible tendency to increase. Also, computers with multiple sockets to insert multicore chips are based on a complex hardware design and are becoming more common. To parallelize the algorithms that run on this type of computers in order to obtain a higher performance rate, is a goal that can only be achieved by taking into account hardware architecture. As hardware evolves, so must software. This leads to old parallelization strategies quickly become obsolete. This paper presents a series of alternatives for parallelization the LU factorization algorithm and its results intended to running on a multicore system. Simple strategies lead to poor results. This study presents complex strategies that merge double levels of parallelism with asynchronous scheduling whose results reach up to the State-of-the-art in the field and even go further.http://hpc2013.hpclatam.org/talks.html#fullpaper17Fil: Soler, Janet. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.Fil: Ortiz, Javier. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.Fil: Wolfmann, Aaron Gustavo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.Ciencias de la Computación2013info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://hdl.handle.net/11086/28443enginfo:eu-repo/semantics/openAccessreponame:Repositorio Digital Universitario (UNC)instname:Universidad Nacional de Córdobainstacron:UNC2025-10-16T09:30:11Zoai:rdu.unc.edu.ar:11086/28443Institucionalhttps://rdu.unc.edu.ar/Universidad públicaNo correspondehttp://rdu.unc.edu.ar/oai/snrdoca.unc@gmail.comArgentinaNo correspondeNo correspondeNo correspondeopendoar:25722025-10-16 09:30:12.058Repositorio Digital Universitario (UNC) - Universidad Nacional de Córdobafalse
dc.title.none.fl_str_mv Strategies to optimize the LU factorization algorithm on multicore computers
title Strategies to optimize the LU factorization algorithm on multicore computers
spellingShingle Strategies to optimize the LU factorization algorithm on multicore computers
Soler, Janet
Hardware architecture
Software
Multicore system
title_short Strategies to optimize the LU factorization algorithm on multicore computers
title_full Strategies to optimize the LU factorization algorithm on multicore computers
title_fullStr Strategies to optimize the LU factorization algorithm on multicore computers
title_full_unstemmed Strategies to optimize the LU factorization algorithm on multicore computers
title_sort Strategies to optimize the LU factorization algorithm on multicore computers
dc.creator.none.fl_str_mv Soler, Janet
Ortiz, Javier
Wolfmann, Aaron Gustavo
author Soler, Janet
author_facet Soler, Janet
Ortiz, Javier
Wolfmann, Aaron Gustavo
author_role author
author2 Ortiz, Javier
Wolfmann, Aaron Gustavo
author2_role author
author
dc.subject.none.fl_str_mv Hardware architecture
Software
Multicore system
topic Hardware architecture
Software
Multicore system
dc.description.none.fl_txt_mv Fil: Soler, Janet. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Fil: Ortiz, Javier. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Fil: Wolfmann, Aaron Gustavo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
The number of cores in multicore computers has an irreversible tendency to increase. Also, computers with multiple sockets to insert multicore chips are based on a complex hardware design and are becoming more common. To parallelize the algorithms that run on this type of computers in order to obtain a higher performance rate, is a goal that can only be achieved by taking into account hardware architecture. As hardware evolves, so must software. This leads to old parallelization strategies quickly become obsolete. This paper presents a series of alternatives for parallelization the LU factorization algorithm and its results intended to running on a multicore system. Simple strategies lead to poor results. This study presents complex strategies that merge double levels of parallelism with asynchronous scheduling whose results reach up to the State-of-the-art in the field and even go further.
http://hpc2013.hpclatam.org/talks.html#fullpaper17
Fil: Soler, Janet. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Fil: Ortiz, Javier. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Fil: Wolfmann, Aaron Gustavo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
Ciencias de la Computación
description Fil: Soler, Janet. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Computación; Argentina.
publishDate 2013
dc.date.none.fl_str_mv 2013
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dc.identifier.none.fl_str_mv http://hdl.handle.net/11086/28443
url http://hdl.handle.net/11086/28443
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Digital Universitario (UNC)
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reponame_str Repositorio Digital Universitario (UNC)
collection Repositorio Digital Universitario (UNC)
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repository.mail.fl_str_mv oca.unc@gmail.com
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