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DTSTART:19700308T020000
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LOCATION:D175
DTSTART;TZID=America/Chicago:20181111T090500
DTEND;TZID=America/Chicago:20181111T093500
UID:submissions.supercomputing.org_SC18_sess155_pec135@linklings.com
SUMMARY:Session1: WACCPD Keynote: Experiences in Using Directive-Based Pro
 gramming for Accelerated Computing Architectures
DESCRIPTION:Jack Wells (Oak Ridge National Laboratory)\n\nAccelerated comp
 uting architectures have grown in their application within scientific comp
 uting since their introduction  approximately ten-years ago.  From the ear
 liest days, there has been a focus on the programmability of these systems
 .  A variety of desired outcomes have driven the development of directive-
 based programming approaches for accelerated computing, including improvem
 ents in developer productivity and application portability, APIs that are 
 non-proprietary or vendor non specific, and that support incremental accel
 eration of application codes.  The first specification was OpenACC 1.0 int
 roduced in November 2011.  With major enhancements, OpenACC has evolved to
  version 2.5, and is providing constructive inputs to the OpenMP specifica
 tion. In this talk, we discuss how the use of compiler directives have evo
 lved over time and their implementation status on Titan and Summit. The ta
 lk will also discuss which applications on Titan are using directives and 
 how their usage has been changing over time. To end, we will discuss the c
 hallenges that need to be solved and how new emerging frameworks are chang
 ing the way applications are using directives (e.g. as backends for Kokkos
 , etc) for C++.\n\nTag: Accelerators, Heterogeneous Systems, Parallel Prog
 ramming Languages, Libraries, and Models\n\nRegistration Category: Worksho
 p Reg Pass\n\nSession Chairs: Sunita Chandrasekaran (University of Delawar
 e); Guido Juckeland (Helmholtz-Zentrum Dresden-Rossendorf (HZDR), TUD Dres
 den University of Technology); and Sandra Wienke (RWTH Aachen University)\
 n\n
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