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DTSTAMP:20210916T132452Z
LOCATION:Jean Calvin
DTSTART;TZID=Europe/Stockholm:20210707T153000
DTEND;TZID=Europe/Stockholm:20210707T160000
UID:submissions.pasc-conference.org_PASC21_sess148_msa150@linklings.com
SUMMARY:Reaching the Summit – Challenges in Porting and Running WRF on the
  World’s Largest Supercomputer
DESCRIPTION:Minisymposium\n\nReaching the Summit – Challenges in Porting a
 nd Running WRF on the World’s Largest Supercomputer\n\nAdie\n\nHeterogeneo
 us, accelerator-based systems are rapidly becoming the new normal for scie
 ntific computing. Summit is a prime example of this with 95% of its comput
 ing power derived from GPUs, and all future planned DOE systems will be ac
 celerated. As such, our climate and weather models need to adapt to this n
 ew environment. This talk discusses the work done to enble WRF, a communit
 y NWP model, to run on the Summit platform, including porting and opt
 imisation efforts. We show the ability to run large (100m, 4 Billion cell)
  models at scale. We also discuss the often-overlooked issue of dealing wi
 th large I/O when running models on several thousand GPUs.\n\nDomain: CS a
 nd Math, Climate and Weather
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