Page 91 - 2025年第56卷第6期
P. 91

[23] LEVEQUERJ.FiniteVolumeMethodsForHyperbolicProblems[M].NewYork:CambridgeUniversityPress,
                      2002
                [24] HARTENA.Onaclassofhigh - resolutiontotal - variation - stablefinite - differenceschemes[J].SIAM Journalon
                       NumericalAnalysis,1984,21(1):1 - 23.
                [25] TOROEF.Shock - capturingMethodsforFree - surfaceShallowFlows[M].Wiley,2001.
                [26] CAUSONDM,INGRAM DM,MINGHAM CG,etal.CalculationofshallowwaterflowsusingaCartesiancut
                       cellapproach [J].AdvancesinWaterResources,2000,23(5):545 - 562.
                [27] 张林波,迟学斌,莫则尧,等.并行计算导论[M].北京:清华大学出版社,2006.
                [28] YUC,DUANJ.Two - dimensionalhydrodynamicmodelforsurface - flowrouting[J].JournalofHydraulicEngi
                       neering,2014,140(9):1 - 13.
                [29] YUC,DUANJ.Simulationofsurfacerunoffusinghydrodynamicmodel[J].JournalofHydrologicEngineering,
                      2017,22(6):04017006.
                [30] YUC,DUANJ.Two - dimensionaldepth - averagedfinitevolumemodelforunsteadyturbulentflow[J].Journalof
                       HydraulicResearch,2012,50(6):599 - 611.
                [31] DUANJG,YUC,DINGY.Numericalsimulationofsedimenttransportinunsteadyopenchannelflow[J].Ad
                       vancesinWaterScience,2004,15(2):165 - 172.
                [32] LIANGD,FALCONER R A, LIN B.ComparisonbetweenTVD- MacCormackandADI - typesolversofthe
                       shallowwaterequations [J].AdvancesinWaterResources,2006,29(12):1833 - 1845.
                [33] 魏文礼,郭永涛,王纪森.一维溃坝洪水波的高精度数值模拟[J].计算力学学报,2007(3):362 - 364.
                [34] FENNEMARJ,CHAUDHRY M H.Explicitmethodsfor2 -D transientfreesurfaceflows[J].Journalof
                       HydraulicEngineering,1990,116(8):1013 - 1034.
                [35] ALCRUDOF,GARCIA - NAVARRO P.A high - resolutionGodunov - typeschemeinfinitevolumesforthe2D
                       shallow - waterequations[J].InternationalJournalforNumericalMethodsinFluids,1993,16(6):489 - 505.
                [36] 张大伟,权锦,马建明,等.基 于 Godunov格 式 的 流 域 地 表 径 流 二 维 数 值 模 拟 [J].水 利 学 报,2018,
                      49(7):787 - 794,802.


                HydrodynamicmodelingviaheterogeneousparallelcomputingondomesticCPU?GPUplatform
                                                     1,2,3
                                                                                5
                                                                 1,4
                                        NANTongchao     ,SHIRui ,YUChunshui
                                 (1.NationalKeyLaboratoryofWaterDisasterPrevention,Nanjing 210024,China;
                            2.YangtzeInstituteforConservationandDevelopment,HohaiUniversity,Nanjing 210024,China;
               3.KeyLaboratoryofHydrologic - CycleandHydrodynamic - SystemofMinistryofWaterResources,HohaiUniversity,Nanjing 210024,China;
                   4.NanjingHydraulicResearchInstitute,Nanjing 210029,China;5.BeijingYunluTechnologyLtd.,Beijing 100161,China)

                  Abstract:Hydrodynamicmodelshaveadvantagessuchasclearphysicalmeaning,highprecisionandreliability,
                  buttheyalsohavehighercomputationalrequirementsandmoreneedforcomputingpower.Giventherestlessinter
                  nationalenvironment,itisnecessarytodevelopa“multi - node,multi - GPU”heterogeneousparallelcomputing
                  schemebasedondomestically - producedCPU?GPUs.Thisstudydevelopeda“multi - node,multi - GPU”large -
                  scaledistributedhydrodynamicmodelonheterogeneousparallelcomputingplatformbasedondomestically - produced
                  devices ,forfastsolvingthetwo - dimensionalshallowwaterequationsatthewatershedscale.Throughthreeexam
                  plesofincreasingcomplexity,theaccuracy,parallelefficiency,andsimulationcapabilityoflarge - scalemodels
                  withhundredsofmillionsofgridswereinvestigated.Theresultsshowthattheproposedmodelcanaccuratelysimu
                  latethehydrodynamicprocessunderconditionssuchasdambreakandlarge - scalecomplexterrain ;theparallelac
                  celerationeffectissignificant,achievingminutes - levelfastsimulationoffloodprocessesonhundredsofmillionsof
                  grids.ItisexpectedtoprovideindependentandreliabletechnicalsupportforChina’sfloodforecastingandearly
                  warning,andprovidereferenceforparallelcomputingofotherhydrodynamicmodelssuchaslarge - scalebasin
                  modelsandregionalgroundwatermodels.
                  Keywords:partialdifferentialequations;hydrodynamicmodels;parallelcomputing;heterogeneouscomputing;
                  domesticprocessors;floodsimulation

                                                                                    (责任编辑:王 婧)

                                                                                                —  7 7 9 —
   86   87   88   89   90   91   92   93   94   95   96