| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Site | mtc-m21d.sid.inpe.br (namespace prefix: upn:44QHRCS) | |||
| Identifier | 8JMKD3MGP3W34T/465EPUS | |||
| Repository | sid.inpe.br/mtc-m21d/2022/01.04.17.46 (restricted access) | |||
| Last Update | 2022:01.04.17.46.36 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21d/2022/01.04.17.46.36 | |||
| Metadata Last Update | 2023:01.03.16.45.59 (UTC) administrator | |||
| DOI | 10.1016/j.envsoft.2021.105271 | |||
| ISSN | 1364-8152 | |||
| Citation Key | FreitasMendIlic:2022:PeOpMG | |||
| Title | Performance optimization of the MGB hydrological model for multi-core and GPU architectures  | |||
| Year | 2022 | |||
| Month | Feb. | |||
| Access Date | 2026, Sep. 13 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 13327 KiB | |||
| 2. Context | ||||
| Author | 1 Freitas, Henrique Rennó de Azeredo 2 Mendes, Celso Luiz 3 Ilic, Aleksandar | |||
| Group | 1 DIOTG-CGCT-INPE-MCTI-GOV-BR 2 DIOTG-CGCT-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Universidade de Lisboa | |||
| Author e-Mail Address | 1 henrique.renno@inpe.br 2 celso.mendes@inpe.br 3 aleksandar.ilic@inesc-id.pt | |||
| Journal | Environmental Modelling and Software | |||
| Volume | 148 | |||
| Pages | e105271 | |||
| Secondary Mark | A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A1_ENGENHARIAS_I A1_CIÊNCIAS_AMBIENTAIS A1_CIÊNCIAS_AGRÁRIAS_I A1_CIÊNCIA_DA_COMPUTAÇÃO A2_ECONOMIA A2_BIODIVERSIDADE B1_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA B1_ANTROPOLOGIA_/_ARQUEOLOGIA C_CIÊNCIAS_BIOLÓGICAS_I | |||
| Host Collection | urlib.net/www/2021/06.04.03.40 upn:44QHRCS | |||
| History (UTC) | 2022-01-04 17:46:36 :: simone -> administrator :: 2022-01-04 17:46:37 :: administrator -> simone :: 2022 2022-01-04 17:47:11 :: simone -> administrator :: 2022 2023-01-03 16:45:59 :: administrator -> simone :: 2022 | |||
| 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 | High performance computing Hydrology models Parallel processing Parameterization Roofline model Vectorization | |||
| Abstract | Large-scale hydrological models simulate watershed processes with applications in water resources, climate change, land use, and forecast systems. The quality of the simulations mainly depends on calibrating optimal sets of watershed parameters, a time-consuming task that highly demands computational resources from repeated simulations. This work aims at performance optimizations on the MGB (Modelo de Grandes Bacias) hydrological model and the MOCOM-UA (Multi-Objective Complex Evolution) calibration method for two watersheds. The optimizations target state-of-the-art CPU/GPU systems, exploiting techniques that include AVX-512 vectorization, and multi-core (CPU) and many-core (GPU) parallelisms. Significant speedups of up to 20 × (CPU) were achieved for calibration, while the scalability analysis indicated 24 × (CPU) and 65 × (GPU) for simulations with larger problem sizes. The roofline analysis confirmed more effective use of the hardware resources, and the quantitative accuracy evaluation of the optimized implementations reached maximum relative errors of approximately 6% for discharges and objective functions. | |||
| Area | SRE | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCT > Performance optimization of... | |||
| 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 | freitas_performance.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | denypublisher denyfinaldraft24 | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/46KUATE | |||
| Citing Item List | sid.inpe.br/bibdigital/2022/04.03.22.23 - 75 | |||
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||