BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:America/New_York
X-LIC-LOCATION:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20250626T233528Z
LOCATION:B302-B305
DTSTART;TZID=America/New_York:20241120T100000
DTEND;TZID=America/New_York:20241120T170000
UID:submissions.supercomputing.org_SC24_sess533_post233@linklings.com
SUMMARY:New Semi-Implicit Electrostatic Particle-In-Cell Method to Extend 
 Scope of the Exascale WarpX Code
DESCRIPTION:Roelof E. Groenewald and Daniel C. Barnes (TAE Technologies); 
 Mikhail Tyushev (University of Saskatchewan, Canada); Weiqun Zhang and Axe
 l Huebl (Lawrence Berkeley National Laboratory (LBNL)); Ales Necas (TAE Te
 chnologies); Andrei Smolyakov (University of Saskatchewan, Canada); Jean-L
 uc Vay (Lawrence Berkeley National Laboratory (LBNL)); Toshiki Tajima (TAE
  Technologies; University of California, Irvine); and Sean Dettrick (TAE T
 echnologies)\n\nTime-explicit fully-kinetic simulation of magnetically con
 fined fusion plasmas is out of reach of existing supercomputers due to the
  multi-scale nature of the system. Physics approximations and time-implici
 t methods are typically used to simulate such plasmas. A new energy-conser
 ving, semi-implicit Poisson solver has been developed and added to the ope
 n-source particle-in-cell code WarpX. The new solver enables electrostatic
  simulations to be performed using orders of magnitude less computational 
 resources than previously possible, without reducing accuracy. Accuracy an
 d computational speedup of the model is demonstrated by simulation of plas
 ma expansion into vacuum and the spoke mode formation during Penning disch
 arge (relevant to the plasma processing industry). The reduction in time-t
 o-solution allows researchers to tackle problems that were previously comp
 utationally infeasible. Performance on GPUs and issues of scaling to fusio
 n plasma conditions are discussed.\n\nRegistration Category: Tech Program 
 Reg Pass, Exhibits Reg Pass\n\nSession Chairs: Ayesha Afzal (Friedrich-Ale
 xander University, Erlangen-Nuremberg; Erlangen National High Performance 
 Computing Center); Sally Ellingson (University of Kentucky); and Alan Suss
 man (University of Maryland)\n\n
END:VEVENT
END:VCALENDAR