000170478 001__ 170478
000170478 005__ 20260422085545.0
000170478 0247_ $$2doi$$a10.5194/gmd-19-2799-2026
000170478 0248_ $$2sideral$$a148972
000170478 037__ $$aART-2026-148972
000170478 041__ $$aeng
000170478 100__ $$aZheng, Na
000170478 245__ $$aHigh-performance coupled surface-subsurface flow simulation with SERGHEI-SWE-RE
000170478 260__ $$c2026
000170478 5060_ $$aAccess copy available to the general public$$fUnrestricted
000170478 5203_ $$aThis work presents SERGHEI-SWE-RE, a performance-portable, parallel model that couples a fully dynamic two-dimensional Shallow Water Equation (SWE) solver with a three-dimensional Richards Equation (RE) solver within the Kokkos framework to simulate surface–subsurface flow exchange. The model features a modular architecture with sequential coupling strategy, supporting both synchronous and asynchronous executions of surface and subsurface modules. The SERGHEI-SWE-RE model is validated against five benchmark problems incorporating stationary and fluctuating free-surface tests, a tilted v-catchment, a lateral-flow slope without ponding, and a heterogeneous superslab. The results demonstrate good agreement with established models. Asynchronous coupling reduces wall-clock time by up to about 75 % in the superslab case while preserving simulation accuracy. Strong and weak scaling tests on multiple Intel Xeon CPUs and NVIDIA GPUs reveal robust portability, with near-ideal RE scaling and less-satisfactory SWE scaling at high GPU counts, suggesting future improvements on differentiated meshes or more advanced domain decomposition strategies. Overall, the results presented establish SERGHEI-SWE-RE as an efficient, flexible and scalable model for integrated surface-subsurface flow simulations.
000170478 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000170478 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000170478 700__ $$aLi, Zhi
000170478 700__ $$aRickert, Gregor
000170478 700__ $$0(orcid)0000-0001-6961-7250$$aMorales-Hernández, Mario$$uUniversidad de Zaragoza
000170478 700__ $$aÖzgen-Xian, Ilhan
000170478 700__ $$aCaviedes-Voullième, Daniel
000170478 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000170478 773__ $$g19, 7 (2026), 2799-2819$$pGEOSCIENTIFIC MODEL DEVELOPMENT$$tGEOSCIENTIFIC MODEL DEVELOPMENT$$x1991-959X
000170478 8564_ $$s5176837$$uhttps://zaguan.unizar.es/record/170478/files/texto_completo.pdf$$yVersión publicada
000170478 8564_ $$s2598414$$uhttps://zaguan.unizar.es/record/170478/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000170478 909CO $$ooai:zaguan.unizar.es:170478$$particulos$$pdriver
000170478 951__ $$a2026-04-22-08:33:16
000170478 980__ $$aARTICLE