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PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:1.0
BEGIN:VEVENT
DTSTART:20111116T011500Z
DTEND:20111116T030000Z
LOCATION:WSCC North Galleria 2nd/3rd Floors
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: The simulation of the electrophysiology of the heart is a challenging task due to the multiscale nature requiring the use of high spatial and temporal resolutions. Hence it is important to optimize simulation codes for fast execution on contemporary massively-parallel architectures. We have parallelized the well-established realistic heart model PROPAG using a hybrid OpenMP-MPI approach capable of running large-scale simulations with billions of degrees of freedom, which is among the largest problem sizes reported in the literature for this field. We present an in-depth performance analysis of the scalability of our code on up to 8k cores. We demonstrate a performance improvement of 24 - 62% for the multithreaded code and analyze the advantages of the hybrid execution model for this application type.
SUMMARY:Hybrid Parallelization of a Realistic Heart Model
PRIORITY:3
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