A PARALLEL BLOCK LANCZOS ALGORITHM AND ITS IMPLEMENTATION FOR THE EVALUATION OF SOME EIGENVALUES OF LARGE SPARSE SYMMETRIC MATRICES ON MULTICOMPUTERS

被引:0
|
作者
Guarracino, Mario Rosario [1 ]
Perla, Francesca [2 ]
Zanetti, Paolo [2 ]
机构
[1] Inst High Performance Comp & Networking ICAR CNR, I-80131 Naples, Italy
[2] Univ Naples Parthenope, I-80133 Naples, Italy
关键词
symmetric block Lanczos algorithm; sparse matrices; parallel eigensolver; cluster architecture;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In the present work we describe HPEC (High Performance Eigenvalues Computation), a parallel software package for the evaluation of some eigenvalues of a large sparse symmetric matrix. It implements an efficient and portable Block Lanczos algorithm for distributed memory multicomputers. HPEC is based on basic linear algebra operations for sparse and dense matrices, some of which have been derived by ScaLAPACK library modules. Numerical experiments have been carried out to evaluate HPEC performance on a cluster of workstations with test matrices from Matrix Market and Higham's collections. A comparison with a PARPACK routine is also detailed. Finally, parallel performance is evaluated on random matrices, using standard parameters.
引用
收藏
页码:241 / 249
页数:9
相关论文
共 40 条