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DTSTART;TZID=America/Denver:20191118T110000
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UID:submissions.supercomputing.org_SC19_sess127_ws_waccpd101@linklings.com
SUMMARY:Acceleration in Acoustic Wave Propagation Modeling Using OpenACC/O
 penMP and Its Hybrid for the Global Monitoring System
DESCRIPTION:Workshop\n\nAcceleration in Acoustic Wave Propagation Modeling
  Using OpenACC/OpenMP and Its Hybrid for the Global Monitoring System\n\nK
 ushida, Lin, Nielsen, Le Bras\n\nCTBTO is operating and maintaining the in
 ternational monitoring system of Seismic, Infrasound, Hydroacoustic and Ai
 rborne radionuclide to detect a nuclear explosion over the globe. The moni
 toring network of CTBTO, especially with regard to infrasound and hydroaco
 ustic, is quite unique because the network covers over the globe, and the 
 data is opened to scientific use. CTBTO has been developing and improving 
 the methodologies to analyze observed signals intensively. In this context
 , hydroacoustic modelling software, especially which that solves the parti
 al differential equation directly, is of interest. As seen in the analysis
  of the Argentinian submarine accident, the horizontal reflection can play
  an important role in identifying the location of an underwater event, and
  as such, accurate modelling software may help analysts find relevant wave
 s efficiently. Thus, CTBTO has been testing a parabolic equation based mod
 el (3D-SSFPE) and building a finite difference time domain (FDTD) model. A
 t the same time, using such accurate models require larger computer resour
 ces than simplified methods such as ray-tracing. Thus we accelerated them 
 using OpenMP and OpenACC, or the hybrid of those. As a result, in the best
  case scenarios, (1) 3D-SSFPE was accelerated by approximately 19 times to
  the original Octave code, employing the GPU-enabled Octfile technology, a
 nd (2) FDTD was accelerated by approximately 160 times to the original For
 tran code using the OpenMP/OpenACC hybrid technology, on our DGX—Station w
 ith V100 GPUs.\n\nTag: Workshop Reg Pass, Accelerators, Parallel Applicati
 on Frameworks, Parallel Programming Languages, Libraries, and Models, Scie
 ntific Computing, Software Engineering\n\nRegistration Category: Workshop 
 Reg Pass, Accelerators, Parallel Application Frameworks, Parallel Programm
 ing Languages, Libraries, and Models, Scientific Computing, Software Engin
 eering
URL:https://sc19.supercomputing.org/presentation/?id=ws_waccpd101&sess=ses
 s127
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