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1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/49NA53H
Repositóriosid.inpe.br/mtc-m21b/2023/08.29.11.04
Última Atualização2023:08.29.11.04.06 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21b/2023/08.29.11.04.06
Última Atualização dos Metadados2023:09.26.02.57.41 (UTC) administrator
Chave SecundáriaINPE--PRE/
Chave de CitaçãoFreitasMend:2017:PaTeAp
TítuloParallelization techniques applied to the MGB hydrological model
Ano2017
Data de Acesso09 maio 2024
Tipo SecundárioPRE CN
Número de Arquivos1
Tamanho108 KiB
2. Contextualização
Autor1 Freitas, Henrique Rennó de Azeredo
2 Mendes, Celso Luiz
Grupo1 SER-SRE-SESPG-INPE-MCTIC-GOV-BR
2 LABAC-COCTE-INPE-MCTIC-GOV-BR
Afiliação1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1 henrique.renno@inpe.br
2 celso.mendes@inpe.br
Nome do EventoWorkshop dos Cursos de Computação Aplicada do INPE, 17 (WORCAP)
Localização do EventoSão José dos Campos, SP
Data20-22 nov. 2017
Título do LivroAnais
Tipo TerciárioSessão Oral
Histórico (UTC)2023-08-29 11:04:06 :: simone -> administrator ::
2023-09-26 02:57:41 :: 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-ChaveHydrological modeling
numerical methods
parallel programming
ResumoHydrological modeling is mainly concerned with the flow of water on rivers and watersheds, which is fundamental to study and to analyze floods and droughts, forecast of discharge, quality of water, and many other applications. The main equations associated to the process of propagation of water flows on rivers are the Saint-Venant equations, including their simplifications, that form a set of partial differential equations to be numerically solved in a computer. Moreover, depending on the numerical method, the solution may require more computational effort to produce the results at each time step. For this reason, parallel computing can be employed to reduce the time needed to find the solution by using a computer system manufactured with multiple processors (CPUs) that support parallel programming, known as shared memory environments, and also systems with graphics processing units (GPUs). This work focuses on the application of parallelization techniques to the MGB hydrological model that is coded in Fortran 90 and includes numerical methods for representing hydrological processes in large-scale watersheds. The interfaces used for parallel programming are OpenMP for CPUs and OpenACC for GPUs, where both interfaces include a set of directives that instruct the compiler how to parallelize parts of the code. Results indicate that parallelization of the most time-consuming parts with either CPUs (threads in an appropriate load balancing scheme) or GPUs can improve model performance, although a hybrid approach that uses both CPUs and GPUs is also being considered with the aim of achieving better performance. For the parallel simulations of the model, this work employed computing resources of the Laquibrido cluster, maintained by LAC/INPE.
ÁreaCOMP
Arranjo 1urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAC > Parallelization techniques applied...
Arranjo 2urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Parallelization techniques applied...
Arranjo 3urlib.net > BDMCI > Fonds > WORCAP > XVII WORCAP > Parallelization techniques applied...
Arranjo 4urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGIP > XVII WORCAP > Parallelization techniques applied...
Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreement
agreement.html 29/08/2023 08:04 1.0 KiB 
4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/8JMKD3MGP3W34P/49NA53H
URL dos dados zipadoshttp://urlib.net/zip/8JMKD3MGP3W34P/49NA53H
Idiomaen
Arquivo AlvoFreitas_parallelization.pdf
Grupo de Usuáriossimone
Visibilidadeshown
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3ESGTTP
8JMKD3MGPCW/3F3NU5S
8JMKD3MGPDW34P/49QQESB
Lista de Itens Citandosid.inpe.br/mtc-m16c/2023/09.14.00.51 4
sid.inpe.br/bibdigital/2013/09.22.23.14 1
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosarchivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark type url volume
7. Controle da descrição
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