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DTSTAMP:20260522T150111Z
LOCATION:C2/3/4 Ballroom
DTSTART;TZID=America/Chicago:20181115T083000
DTEND;TZID=America/Chicago:20181115T170000
UID:submissions.supercomputing.org_SC18_sess324_post128@linklings.com
SUMMARY:UPC++ and GASNet-EX: PGAS Support for Exascale Applications and Ru
 ntimes
DESCRIPTION:Scott B. Baden, Paul H. Hargrove, Hadia Ahmed, John Bachan, Da
 n Bonachea, Steven Hofmeyr, Mathias Jacquelin, Amir Kamil, and Brian van S
 traalen (Lawrence Berkeley National Laboratory)\n\nLawrence Berkeley Natio
 nal Lab is developing a programming system to support HPC application deve
 lopment using the Partitioned Global Address Space (PGAS) model. This work
  is driven by the emerging need for adaptive, lightweight communication in
  irregular applications at exascale.  We present an overview of UPC++ and 
 GASNet-EX, including examples and performance results.  \n\nGASNet-EX is a
  portable, high-performance communication library, leveraging hardware sup
 port to efficiently implement Active Messages and Remote Memory Access (RM
 A).  UPC++ provides higher-level abstractions appropriate for PGAS program
 ming such as: one-sided communication (RMA), remote procedure call, locali
 ty-aware APIs for user-defined distributed objects, and robust support for
  asynchronous execution to hide latency.  Both libraries have been redesig
 ned relative to their predecessors to meet the needs of exascale computing
 .  While both libraries continue to evolve, the system already demonstrate
 s improvements in microbenchmarks and application proxies.\n\nRegistration
  Category: Tech Program Reg Pass, Exhibits Reg Pass\n\n
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