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DTSTAMP:20190719T085744Z
LOCATION:HG D 1.2
DTSTART;TZID=Europe/Stockholm:20190613T141500
DTEND;TZID=Europe/Stockholm:20190613T144500
UID:submissions.pasc-conference.org_PASC19_sess148_msa274@linklings.com
SUMMARY:The High-level Intermediate Representation for DSL Toolchains of W
 eather and Climate Applications
DESCRIPTION:Minisymposium\nClimate and Weather\n\nThe High-level Intermedi
 ate Representation for DSL Toolchains of Weather and Climate Applications\
 n\nOsuna Escamilla, Wicky, Fuhrer\n\nWe present a community effort to defi
 ne and develop a standard high-level intermediate representation (HIR) for
  grid-based numerical weather and climate models, that aims at enabling hi
 gh-level tools and solutions like DSLs for high productivity and efficienc
 y. In the prelude of exascale machines, computing accelerators like NVIDIA
  GPUs are not exotic architectures anymore, but an established architectur
 e that accelerates scientific codes adopted by large supercomputing machin
 es like Summit or Piz Daint. However the community still struggles to port
  and maintain efficient models for accelerators while retaining efficiency
  on traditional CPUs and a single source code. Programming models are not 
 evolving and improving at the same speed as computing architectures. As a 
 remedy for the lack of parallel compilers and programming models several d
 omain specific solutions (DSL) for weather and climate are being developed
  within Europe. However, they normally support specific numerical methods,
  grids or models. The aim of our approach is to provide a language indepen
 dent, standard definition of a high-level descriptive representation, lang
 uage independent, that captures the main algorithmic motifs and allows to 
 interoperate DSLs. We present the current state of the art of the HIR defi
 nition and main results using a toolchain for weather and climate applicat
 ions.
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