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DTSTAMP:20230124T170804Z
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DTSTART;TZID=America/Chicago:20221116T083000
DTEND;TZID=America/Chicago:20221116T170000
UID:submissions.supercomputing.org_SC22_sess274_rpost122@linklings.com
SUMMARY:Scalable GPU Accelerated Simulation of Multiphase Compressible Flo
 w
DESCRIPTION:Posters, Research Posters\n\nScalable GPU Accelerated Simulati
 on of Multiphase Compressible Flow\n\nRadhakrishnan, Le Berre, Bryngelson\
 n\nWe present a strategy for GPU acceleration of a multiphase compressible
  flow solver that brings us closer to exascale computing.  Given the memor
 y-bound nature of most CFD problems, one must be prudent in implementing a
 lgorithms and offloading work to accelerators for efficient use of resourc
 es.  Through careful choice of OpenACC decorations, we achieve 46% of peak
  GPU FLOPS on the most expensive kernel, leading to a 500-times speedup on
  an NVIDIA A100 compared to 1 modern Intel CPU core.  The implementation a
 lso demonstrates ideal weak scaling for up to 13824 GPUs on OLCF Summit.  
 Strong scaling behavior is typical but improved by reduced communication t
 imes via CUDA-aware MPI.\n\nRegistration Category: Tech Program Reg Pass, 
 Exhibits Reg Pass
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