Table of Contents
Peter N. Brown Center for Applied Scientific Computing May 2001
3-D time-dependent Boltzmann transport equation
Multi-group energy discretization
Transport solver combines traditional & multilevel methods
Matrix formulation
PVODE software suite
Parallel T ? evaluation
Zonal based spatial decomposition leads to nodal values on overlapped grids
Nodal ownership is direction dependent
Nodal ownership is direction dependent
Nodal ownership is direction dependent
Nodal ownership is direction dependent
Energy group decomposition
Communication involved in residual evaluations
Preconditioning strategies
Preconditioners using matrix structure
Block Jacobi convergence
Preconditioners based on physics
Scalability studies on ASCI Blue and White
Hybrid MPI/OpenMP implementation
Large neutron time dependent run on ASCI White (NIF Target Bay)
Future work
PPT Slide
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