8669 search results - page 140 / 1734 » Computing matrix representations |
HPCC
2005
Springer
14 years 2 months ago
2005
Springer
Abstract. We improve the performance of sparse matrix-vector multiplication (SpMV) on modern cache-based superscalar machines when the matrix structure consists of multiple, irregu...
ICPPW
2002
IEEE
14 years 2 months ago
2002
IEEE
In this paper we discuss the parallel implementation of the Cholesky factorization of a positive definite symmetric matrix when that matrix is block tridiagonal. While parallel im...
MCS
2008
Springer
13 years 9 months ago
2008
Springer
In this paper we propose a numerical method for approximating the product of a matrix function with multiple vectors by Krylov subspace methods combined with a QR decomposition of...
BMCBI
2005
13 years 9 months ago
2005
Background: Codon substitution probabilities are used in many types of molecular evolution studies such as determining Ka/Ks ratios, creating ancestral DNA sequences or aligning c...
SIAMSC
2010
13 years 3 months ago
2010
We consider two-dimensional partitioning of general sparse matrices for parallel sparse matrix-vector multiply operation. We present three hypergraph-partitioning-based methods, ea...