56 search results - page 3 / 12 » Tiled QR factorization algorithms |
ISSAC
2007
Springer
14 years 1 months ago
2007
Springer
Given a lattice basis of n vectors in Zn, we propose an algorithm using 12n3 + O(n2) floating point operations for checking whether the basis is LLL-reduced. If the basis is redu...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
We present parallel and sequential dense QR factorization algorithms that are optimized to avoid communication. Some of these are novel, and some extend earlier work. Communicatio...
EUROPAR
2011
Springer
12 years 7 months ago
2011
Springer
: Tuning numerical libraries has become more difficult over time, as systems get more sophisticated. In particular, modern multicore machines make the behaviour of algorithms hard ...
TPDS
2010
13 years 6 months ago
2010
The objective of this paper is to extend, in the context of multicore architectures, the concepts of tile algorithms [Buttari et al., 2007] for Cholesky, LU, QR factorizations to t...
DIS
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. In this paper, we consider 0/1 databases and provide an alternative way of extracting knowledge from such databases using tiles. A tile is a region in the database consis...