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 -