TY - GEN

T1 - 2-D R-matrix propagation: A large scale electron scattering simulation dominated by the multiplication of dynamically changing matrices

AU - Stitt, Laura

AU - Scott, Stan

AU - Scott, Margaret

AU - Burke, P.G.

PY - 2003

Y1 - 2003

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=33947197601&partnerID=8YFLogxK

U2 - 10.1007/3-540-36569-9_23

DO - 10.1007/3-540-36569-9_23

M3 - Conference contribution

VL - 2565

T3 - Lecture Notes in Computer Science

SP - 354

EP - 367

BT - High Performance Computing for Computational Science: VECPAR 2002

ER -