1. Identificação | |
Tipo de Referência | Artigo em Evento (Conference Proceedings) |
Site | mtc-m21b.sid.inpe.br |
Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identificador | 8JMKD3MGP3W34P/49NA53H |
Repositório | sid.inpe.br/mtc-m21b/2023/08.29.11.04 |
Última Atualização | 2023:08.29.11.04.06 (UTC) simone |
Repositório de Metadados | sid.inpe.br/mtc-m21b/2023/08.29.11.04.06 |
Última Atualização dos Metadados | 2023:09.26.02.57.41 (UTC) administrator |
Chave Secundária | INPE--PRE/ |
Chave de Citação | FreitasMend:2017:PaTeAp |
Título | Parallelization techniques applied to the MGB hydrological model |
Ano | 2017 |
Data de Acesso | 09 maio 2024 |
Tipo Secundário | PRE CN |
Número de Arquivos | 1 |
Tamanho | 108 KiB |
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2. Contextualização | |
Autor | 1 Freitas, Henrique Rennó de Azeredo 2 Mendes, Celso Luiz |
Grupo | 1 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 2 LABAC-COCTE-INPE-MCTIC-GOV-BR |
Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) |
Endereço de e-Mail do Autor | 1 henrique.renno@inpe.br 2 celso.mendes@inpe.br |
Nome do Evento | Workshop dos Cursos de Computação Aplicada do INPE, 17 (WORCAP) |
Localização do Evento | São José dos Campos, SP |
Data | 20-22 nov. 2017 |
Título do Livro | Anais |
Tipo Terciário | Sessão Oral |
Histórico (UTC) | 2023-08-29 11:04:06 :: simone -> administrator :: 2023-09-26 02:57:41 :: administrator -> simone :: 2017 |
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3. Conteúdo e estrutura | |
É a matriz ou uma cópia? | é a matriz |
Estágio do Conteúdo | concluido |
Transferível | 1 |
Tipo do Conteúdo | External Contribution |
Tipo de Versão | publisher |
Palavras-Chave | Hydrological modeling numerical methods parallel programming |
Resumo | Hydrological 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. |
Área | COMP |
Arranjo 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAC > Parallelization techniques applied... |
Arranjo 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Parallelization techniques applied... |
Arranjo 3 | urlib.net > BDMCI > Fonds > WORCAP > XVII WORCAP > Parallelization techniques applied... |
Arranjo 4 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGIP > XVII WORCAP > Parallelization techniques applied... |
Conteúdo da Pasta doc | acessar |
Conteúdo da Pasta source | não têm arquivos |
Conteúdo da Pasta agreement | |
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4. Condições de acesso e uso | |
URL dos dados | http://urlib.net/ibi/8JMKD3MGP3W34P/49NA53H |
URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W34P/49NA53H |
Idioma | en |
Arquivo Alvo | Freitas_parallelization.pdf |
Grupo de Usuários | simone |
Visibilidade | shown |
Permissão de Atualização | não transferida |
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5. Fontes relacionadas | |
Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ESGTTP 8JMKD3MGPCW/3F3NU5S 8JMKD3MGPDW34P/49QQESB |
Lista de Itens Citando | sid.inpe.br/mtc-m16c/2023/09.14.00.51 4 sid.inpe.br/bibdigital/2013/09.22.23.14 1 |
Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 |
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6. Notas | |
Campos Vazios | archivingpolicy 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 |
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7. Controle da descrição | |
e-Mail (login) | simone |
atualizar | |
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