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DTSTART:19700308T020000
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DTSTAMP:20230124T171520Z
LOCATION:C148
DTSTART;TZID=America/Chicago:20221113T135600
DTEND;TZID=America/Chicago:20221113T140000
UID:submissions.supercomputing.org_SC22_sess425_ws_whpc106@linklings.com
SUMMARY:Runtime Solutions to HPC Applications' Dynamic Imbalance
DESCRIPTION:Workshop\n\nRuntime Solutions to HPC Applications' Dynamic Imb
 alance\n\nRocha Barbosa\n\nThe scientific applications in HPC can use MPI 
 and another runtime in the same execution to communicate between processes
  and for intra-node orchestration. However, with these developments it can
  be difficult to use all resources of a supercomputer as some load imbalan
 ce may appear during an execution. This abstract presents methods to use m
 ore efficiently resources in case of two types of load imbalance with mini
 mal impact on application's code. The first method dynamically detects loa
 d imbalance and balance the computation by redistributing OpenMP threads b
 etween MPI processes local to the node. With this method an improvement of
  up to 30\% can be observed for MiniFE. The second method aims at harnessi
 ng the unused cores during the execution to compute another application at
  the same time. The preliminary results show a gain with this second metho
 d but with some impact on the first application.\n\nSession Format: Record
 ed\n\nTag: Diversity Equity Inclusion (DEI), Education and Training and Ou
 treach\n\nRegistration Category: Workshop Reg Pass
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