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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3PUL32H
Repositóriosid.inpe.br/mtc-m21b/2017/11.08.15.34   (acesso restrito)
Última Atualização2017:11.08.15.34.49 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m21b/2017/11.08.15.34.49
Última Atualização dos Metadados2018:06.04.02.27.59 (UTC) administrator
DOI10.1002/cpe.3959
ISSN1532-0626
Chave de CitaçãoSilvaJúniorPaneStep:2017:PoEfAd
TítuloPortability with efficiency of the advection of BRAMS between multi-core and many-core architectures
Ano2017
MêsNov.
Data de Acesso17 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho912 KiB
2. Contextualização
Autor1 Silva Júnior, Manoel Baptista
2 Panetta, Jairo
3 Stephany, Stephan
Identificador de Curriculo1
2
3 8JMKD3MGP5W/3C9JJ9D
Grupo1 CAP-COMP-SESPG-INPE-MCTIC-GOV-BR
2
3 LABAC-COCTE-INPE-MCTIC-GOV-BR
Afiliação1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Tecnológico de Aeronáutica (ITA)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1 manoel.baptista@cptec.inpe.br
2
3 stephan.stephany@inpe.br
RevistaConcurrency Computation
Volume29
Número22
Páginase3959
Histórico (UTC)2017-11-08 15:35:57 :: simone -> administrator :: 2017
2018-06-04 02:27:59 :: administrator -> simone :: 2017
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-Chaveatmospheric numerical model
OpenMP
OpenACC
code portability
multi-core architecture
general purpose graphics processing unit
ResumoThe continuous growth of spatial resolution and forecasting period in current atmospheric models demands increasing processing power supplied by supercomputers with hundreds or thousands of nodes. Currently, most of these models are operationally executed on supercomputers composed of nodes with tens of cores (multi-core architecture). Newer supercomputer generations have nodes with multi-core processors coupled to processing accelerators, typically graphics cards with hundreds of cores (many-core architecture). The rewriting of model codes to use both architectures efficiently, that is, executing with or without graphics cards, represents a challenge because these models have hundreds of thousands of lines. The OpenMP programming interface proposed decades ago is a de facto standard that efficiently explores multi-core architectures. A new programming interface, OpenACC, is being proposed for many-core architectures. These two programming interfaces are similar, because they are based on parallelization directives for the concurrent execution of threads. This work shows the feasibility of writing a single portable code embedding both interfaces and presenting acceptable efficiency when executed on nodes with multi-core or many-core architecture. The code chosen as a case study is the advection of scalars, a part of the dynamics of the regional atmospheric model Brazilian Regional Atmospheric Modeling System (BRAMS). The dynamics of a model is harder to parallelize because of data dependencies between adjacent grid points. Single-node executions of the advections of scalars for different grid sizes using OpenMP or OpenACC yielded similar speed-ups, showing the feasibility of the proposed approach.
ÁreaCOMP
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Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreement
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4. Condições de acesso e uso
Idiomaen
Grupo de Usuáriosself-uploading-INPE-MCTI-GOV-BR
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Grupo de Leitoresadministrator
simone
Visibilidadeshown
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Vinculação8JMKD3MGP3W34P/3JDAC42
Unidades Imediatamente Superiores8JMKD3MGPCW/3ESGTTP
8JMKD3MGPCW/3F2PHGS
Lista de Itens Citandosid.inpe.br/mtc-m21/2012/07.13.15.00.38 5
sid.inpe.br/bibdigital/2013/09.22.23.14 2
sid.inpe.br/bibdigital/2013/10.12.22.16 2
DivulgaçãoPORTALCAPES; SCOPUS.
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosalternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject targetfile tertiarytype url
7. Controle da descrição
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