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DTSTART:19700308T020000
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BEGIN:VEVENT
DTSTAMP:20210402T160556Z
LOCATION:Track 10
DTSTART;TZID=America/New_York:20201112T162000
DTEND;TZID=America/New_York:20201112T164500
UID:submissions.supercomputing.org_SC20_sess218_ws_pawatm107@linklings.com
SUMMARY:Evaluation of Multiple HPC Parallelization Frameworks in a Shallow
  Water Mini Application with Multi-Rate Local Time Stepping
DESCRIPTION:Workshop\n\nEvaluation of Multiple HPC Parallelization Framewo
 rks in a Shallow Water Mini Application with Multi-Rate Local Time Steppin
 g\n\nBogusz, Samfass, Pöppl, Klinkenberg, Bader\n\nWith a widening gap bet
 ween processor speed and communication latencies, overlap of computation a
 nd communication becomes increasingly important. At the same time, variabl
 e CPU clock frequencies (e.g.,with DVFS and Turbo Boost) and novel numeric
 al techniques such as local time stepping make it challenging to balance p
 arallel execution times, even in the case of balanced computational load. 
 This limits parallel efficiency. In order to tackle these challenges, emer
 ging runtime systems may be used. In this paper, we present a thorough stu
 dy of four selected parallelization frameworks: Chameleon, HPX, Charm++ an
 d UPC++; in a proxy application for solving the shallow water equations. I
 n addition, we augment the traditional MPI baseline variant with support f
 or these frameworks and evaluate them in detail with respect to strong sca
 ling efficiency and load balancing for global and local time stepping.\n\n
 Registration Category: Workshop Reg Pass
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