| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m16d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP7W/3B2ED7L | |||
| Repository | sid.inpe.br/mtc-m19/2011/12.16.12.57 (restricted access) | |||
| Last Update | 2011:12.16.13.04.12 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m19/2011/12.16.12.57.20 | |||
| Metadata Last Update | 2018:06.05.04.25.09 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| DOI | 10.1109/ISPA.2011.56 | |||
| ISBN | 978-076954428-1 | |||
| Citation Key | OsthoffGBKPNSPMDW:2011:ImPeAt | |||
| Title | Improving performance on Atmospheric Models through a Hybrid OpenMP/MPI implementation  | |||
| Year | 2011 | |||
| Access Date | 2024, May 02 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 993 KiB | |||
| 2. Context | ||||
| Author | 1 Osthoff, C. 2 Grunmann, P. 3 Boito, F. 4 Kassick, R. 5 Pilla, L. 6 Navaux, P. 7 Schepke, C. 8 Panetta, J. 9 Maillard, N. 10 Dias, P. L. S. 11 Walko, R. | |||
| Group | 1 2 3 4 5 6 7 8 LAC-CTE-INPE-MCT-BR | |||
| Affiliation | 1 Laboratório Nacional de Computaçãao Científica (LNCC), Brazil 2 Laboratório Nacional de Computaçãao Científica (LNCC), Brazil 3 Informática, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil 4 Instituto de Informática, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil 5 Instituto de Informática, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil 6 Instituto de Informática, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil 7 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Instituto de Informática, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil 10 Laboratório Nacional de Computaçãao Científica (LNCC), Brazil 11 University of Miami, United States | |||
| Conference Name | 9th IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2011 | |||
| Conference Location | Busan | |||
| Date | 26-28 May | |||
| Publisher | IEEE TCSC, IEEE Computer Society | |||
| Volume | Article number: 5951885 | |||
| Book Title | Proceedings | |||
| History (UTC) | 2011-12-16 14:51:05 :: marciana -> administrator :: 2011 2018-06-05 04:25:09 :: administrator -> marciana :: 2011 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Keywords | Atmospheric models Distributed system application High performance computing I/O performance evaluation Multicore OLAM Atmospheric model Distributed systems High performance computing I/O performance evaluation Multi core OLAM | |||
| Abstract | This work shows how a Hybrid MPI/OpenMP implementation can improve the performance of the Ocean-Land-Atmosphere Model (OLAM) on a multi-core cluster environment, which is a typical HPC many small files workload application. Previous experiments have shown that the scalability of this application on clusters is limited by the performance of the output operations. We show that the Hybrid MPI/OpenMP version of OLAM decreases the number of output files, resulting in better performance for I/O operations. We also observe that the MPI version of OLAM performs better for unbalanced workloads and that further parallel optimizations should be included on the hybrid version in order to improve the parallel execution time of OLAM. | |||
| Area | COMP | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAC > Improving performance on... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| Target File | 05951885.pdf | |||
| User Group | administrator marciana | |||
| Visibility | shown | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 | |||
| Next Higher Units | 8JMKD3MGPCW/3ESGTTP | |||
| Dissemination | IEEEXplore | |||
| Host Collection | sid.inpe.br/mtc-m19@80/2009/08.21.17.02 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress edition editor electronicmailaddress format issn label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisheraddress readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url | |||
| 7. Description control | ||||
| e-Mail (login) | marciana | |||
| update | ||||