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BEGIN:VEVENT
DTSTAMP:20210916T132449Z
LOCATION:Jean Calvin
DTSTART;TZID=Europe/Stockholm:20210706T113000
DTEND;TZID=Europe/Stockholm:20210706T120000
UID:submissions.pasc-conference.org_PASC21_sess109_msa163@linklings.com
SUMMARY:Is a 1Km Global Model Possible? Challenges for LFRic, Perspectives
  from the UM
DESCRIPTION:Minisymposium\n\nIs a 1Km Global Model Possible? Challenges fo
 r LFRic, Perspectives from the UM\n\nMaynard\n\nThe scale of parallelism r
 equired to exploit Exascale computing is extreme. Weather and Climate mode
 ls have traditionally employed data parallelism to exploit parallelism. Ex
 ascale computing represents both a challenge and an opportunity. The high 
 resolution necessary would bring obvious scientific benefits but also plen
 ty of challenges including the computational challenges of extreme scaling
  and a small time-step. The UK Met Office has recently commenced a 1.2 Bil
 lion pound procument for a ten year provision of supercomputing facilities
 . The use cases include high resolution. The Met Office is also developing
  a new model called LFRic as the current operational system, the Unified M
 odel (UM), uses a lon-lat grid which will ultimately inhibit scaling. Scie
 ntific  perspectives from running the UM at high resolution (1.5 Km l
 imited area model) will be presented and the computational challenges for 
 the LFRic model to run a 1Km will be discussed.\n\nDomain: CS and Math, Cl
 imate and Weather, Physics
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