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DTSTART:19700308T020000
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DTSTAMP:20181221T160731Z
LOCATION:D168
DTSTART;TZID=America/Chicago:20181116T091000
DTEND;TZID=America/Chicago:20181116T092000
UID:submissions.supercomputing.org_SC18_sess144_ws_pawatm111@linklings.com
SUMMARY:Development and Performance Comparison of MPI and Fortran Coarrays
  within an Atmospheric Research Model
DESCRIPTION:Workshop\nParallel Programming Languages, Libraries, and Model
 s, Productivity, Workshop Reg Pass\n\nDevelopment and Performance Comparis
 on of MPI and Fortran Coarrays within an Atmospheric Research Model\n\nRas
 mussen, Gutmann, Friesen, Rouson, Filippone...\n\nA mini-application of th
 e Intermediate Complexity Research (ICAR) Model offers an opportunity to c
 ompare the costs and performance of the Message Passing Interface (MPI) ve
 rsus coarray Fortran, two methods of communication across processes. The a
 pplication requires repeated communication of halo regions, which is perfo
 rmed with either MPI or coarrays. The MPI communication is done using non-
 blocking two-sided communication, while the coarray library is implemented
  using a one-sided MPI or OpenSHMEM communication backend.  We examine the
  development cost in addition to strong and weak scalability analysis to u
 nderstand the performance costs.
URL:https://sc18.supercomputing.org/presentation/?id=ws_pawatm111&sess=ses
 s144
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