2-D R-matrix propagation: a large scale electron scattering simulation dominated by the multiplication of dynamically changing matrices
Tim Stitt - Queen's University Belfast
Stan Scott - Queen's University Belfast
Penny Scott - Queen's University Belfast
Phil Burke - Queen's University Belfast
We examine the computational aspects of propagating a global
R-matrix, R, across sub-regions in a 2-D plane. This problem
originates in the large scale simulation of electron collisions
with atoms and ions at intermediate energies. The propagation is
dominated by matrix multiplications which are complicated because
of the dynamic nature of R, which changes the designations of
its rows and columns and grows in size as the propagation
proceeds. The use of PBLAS to solve this problem on distributed
memory HPC machines is the main focus of the paper.
Last update: Wed Jun 12 14:26:53 2002 WEST