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SUMMARY:A Landau collision integral solver with adaptivity on emerging arc
 hitectures - Mark Adams\, Lawrence Berkley Lab
DTSTART:20170626T110000Z
DTEND:20170626T120000Z
UID:TALK72787@talks.cam.ac.uk
CONTACT:Juha Jäykkä
DESCRIPTION:The Landau collision integral is an accurate model for the sma
 ll-angle dominated Coulomb collisions in fusion plasmas. We investigate a 
 high order accurate\, fully conservative\, finite element discretization o
 f the nonlinear multi-species Landau integral with adaptive mesh refinemen
 t using the PETSc library (www.mcs.anl.gov/petsc [1]). We present algorith
 ms and techniques that efficiently utilize emerging architectures by minim
 izing memory movement and being amenable to vector processing. We present 
 performance results on the Second Generation Intel Xeon Phi\, Knights Land
 ing\, processor.
LOCATION:MR11/B1.39\, Centre for Mathematical Sciences
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