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BEGIN:VEVENT
DTSTAMP:20210916T132446Z
LOCATION:Ella Maillart
DTSTART;TZID=Europe/Stockholm:20210707T170000
DTEND;TZID=Europe/Stockholm:20210707T173000
UID:submissions.pasc-conference.org_PASC21_sess172_pap_dec109@linklings.co
 m
SUMMARY:Performance Evaluation of a Two-Dimensional Flood Model on Heterog
 eneous High-Performance Computing Architectures
DESCRIPTION:Paper\n\nPerformance Evaluation of a Two-Dimensional Flood Mod
 el on Heterogeneous High-Performance Computing Architectures\n\nSharif, Gh
 afoor, Hines, Morales-Hernandez, Evans...\n\nThis paper describes the impl
 ementation of a two-dimensional hydrodynamic flood model with two differen
 t numerical schemes on heterogeneous high-performance computing architectu
 res. Both schemes were able to solve the nonlinear hyperbolic shallow wate
 r equations using an explicit upwind first-order approach on finite differ
 ences and finite volumes, respectively, and were conducted using MPI and C
 UDA. Four different test cases were simulated on the Summit supercomputer 
 at Oak Ridge National Laboratory. Both numerical schemes scaled up to 128 
 nodes (768 GPUs) with a maximum 98.2x speedup of over 1 GPU. The lowest ru
 n time for the 10 day Hurricane Harvey event simulation at 5 meter resolut
 ion (272 million grid cells) was 50 minutes. GPUDirect communication prove
 d to be more convenient than the standard communication strategy. Both str
 ong and weak scaling are shown.\n\nDomain: CS and Math, Engineering
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