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SUMMARY:A New Parallel Processing  Scheme Enabling Full Monte Carlo EAS Si
 mulation in the GZK Energy Region
DTSTART;VALUE=DATE-TIME:20070706T194500Z
DTEND;VALUE=DATE-TIME:20070706T194500Z
DTSTAMP;VALUE=DATE-TIME:20260419T110137Z
UID:indico-contribution-199@cern.ch
DESCRIPTION:Speakers: Prof. KASAHARA\, katsuaki kasahara (Advanced Researc
 h Institue For Science And Engineering\, Waseda University)\nWe developed 
 a new parallel processing method enabling full M.C EAS  simulation (say\, 
 with minimum energy of \n500 keV)  without using thin sampling even at 10^
 19 eV.   Normally\, distributed-parallel processing needs a \nspecific sof
 tware and programs  must be organized to match with such system.  During t
 he computation such a \nscheme also requires complex communications among 
 many computer hosts.  \n   Our scheme first creates a skeleton of a shower
 \, and smashes it into n-peaces and distributes the  peaces to n-\ncpu to 
 flesh them. After each peace is completely fleshed\, they are assembled to
  make a complete picture of the \nshower.  Thus\, during the computation  
  need  no communication. With n=50\,  a 10^19 eV shower can be \nsimulated
  in ~10 days.  For a 10^20 eV shower\,  we may randomly sample a fraction 
 of n-peases (say\, 100 for \nn=1000)\, and safely econstruct whole picture
  of the shower.  The scheme dose not use any weight on each \nparticle and
  very much stable. \n The scheme has been  implemented  in Cosmos code.  T
 o produce a number of showers with full fluctuations\,  \nwe have also dev
 eloped  a new method which  utilizes the present result.   The latter is u
 sed  for the TA \nexperiment and is described in an accompanying paper.\n\
 nhttps://indico.nucleares.unam.mx/event/4/session/39/contribution/199
LOCATION:Merida\, Mexico Regency (Hyatt)
URL:https://indico.nucleares.unam.mx/event/4/session/39/contribution/199
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