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DTSTART;TZID=Europe/Stockholm:20190613T111500
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UID:submissions.pasc-conference.org_PASC19_sess125@linklings.com
SUMMARY:MS23 - Resilient Solvers in Exascale Atmospheric Models
DESCRIPTION:Minisymposium\nComputer Science and Applied Mathematics, Clima
 te and Weather\n\nCompression-Based Resilience for Linear Solvers\n\nGoedd
 eke, Altenbernd\n\nThere are three general approaches to improve the resil
 ience of computations in software: (i) checkpoint-restart, (ii) algorithm-
 based fault tolerance and (iii) triple modular redundancy. We present two 
 different approaches towards resilience of linear solvers, that constitute
  hybrids of checkpoint-...\n\n---------------------\nElliptic Solvers for 
 Large-Time-Step Simulations of All-Scale Global Atmospheric Dynamics\n\nSm
 olarkiewicz, Kühnlein, Wedi\n\nThis talk outlines the numerical formulatio
 n of the novel non-hydrostatic dynamical core (Finite-Volume Module) of th
 e Integrated Forecasting System (IFS) at ECMWF (hereafter IFS-FVM). Its&nb
 sp; focus is on the developed semi-implicit integrators and the associated
  elliptic Helmholtz problem. IFS-FV...\n\n---------------------\nScalable 
 Linear Solvers for Next Generation Weather and Climate Models\n\nMaynard, 
 Melvin, Mueller\n\nSemi-implicit time integrators are very popular in oper
 ational atmospheric forecast models as they guarantee the stable treatment
  of fast (acoustic & gravity) waves, while allowing the slower advecti
 ve motion to be treated explicitly, and therefore do not suffer from sever
 e restrictions on the t...\n\n---------------------\nTowards Fault-Toleran
 ce in Atmospheric Dynamical Cores\n\nBenacchio, Bonaventura\n\nNumerical w
 eather prediction and climate studies rate among the most compute-intensiv
 e applications in applied mathematics. Spatial resolutions for atmospheric
  models currently in the sub-10 km scale force the use of massive core cou
 nts, which in turn entail a rapidly growing likelihood of hard and ...\n
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