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TZOFFSETFROM:-0600
TZOFFSETTO:-0500
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DTSTART:19700308T020000
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DTSTART:19701101T020000
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BEGIN:VEVENT
DTSTAMP:20211207T055343Z
LOCATION:Online
DTSTART;TZID=America/Chicago:20211114T120000
DTEND;TZID=America/Chicago:20211114T123000
UID:submissions.supercomputing.org_SC21_sess432_ws_waccpd111@linklings.com
SUMMARY:GPU offloading of a large-scale gyrokinetic particle-in-cell Fortr
 an code: From OpenACC to OpenMP
DESCRIPTION:Workshop\n\nGPU offloading of a large-scale gyrokinetic partic
 le-in-cell Fortran code: From OpenACC to OpenMP\n\nCai, Cheng, Chen, Wagne
 r, Daley...\n\nGPU offloading of a large-scale gyrokinetic particle-in-cel
 l Fortran code is converted from using OpenACC to using OpenMP. Particle p
 ushing and deposition are completely offloaded to GPU. Performance is comp
 ared between CPU and GPU, and between OpenACC and OpenMP. Good weak scalin
 g (increasing particle number with fixed grid number) is obtained. Issues 
 encountered when porting OpenMP GPU offloading are discussed.\n\nTag: Onli
 ne Only, Accelerator-based Architectures, Parallel Programming Languages a
 nd Models, Performance, State of the Practice\n\nRegistration Category: Wo
 rkshop Reg Pass
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