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DTSTART:19700308T020000
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DTSTAMP:20260522T150119Z
LOCATION:C141/143/149
DTSTART;TZID=America/Chicago:20181113T133000
DTEND;TZID=America/Chicago:20181113T140000
UID:submissions.supercomputing.org_SC18_sess209_pap175@linklings.com
SUMMARY:A Parallelism Profiler with What-If Analyses for OpenMP Programs
DESCRIPTION:Nader Boushehrinejadmoradi, Adarsh Yoga, and Santosh Nagarakat
 te (Rutgers University)\n\nThis paper proposes OMP-WHIP, a profiler that m
 easures inherent parallelism in the program for a given input and provides
  what-if analyses to estimate improvements in parallelism. We propose a no
 vel OpenMP series parallel graph representation (OSPG) that precisely capt
 ures series-parallel relations induced by various directives between diffe
 rent fragments of dynamic execution. OMP-WHIP constructs the OSPG and meas
 ures the computation performed by each dynamic fragment using hardware per
 formance counters. This series-parallel representation along with the fine
 -grained measurement of computation is a performance model of the program 
 for a given input, which enables computation of inherent parallelism. This
  novel performance model also enables what-if analyses where a programmer 
 can estimate improvements in parallelism when bottlenecks are parallelized
 . We have used OMP-WHIP to identify parallelism bottlenecks in more than f
 orty applications and then designed strategies to improve the speedup in s
 even applications.\n\nTag: OpenMP, Performance, Power, Tools\n\nRegistrati
 on Category: Tech Program Reg Pass\n\nSession Chair: Felix Wolf (Technical
  University of Darmstadt)\n\n
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