Improving the low-lying spectrum of the overlap kernel
Date
2002
Authors
Kamleh, W.
Adams, D.
Leinweber, D.
Williams, A.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Nuclear Physics B - Proceedings Supplements, 2002; 109(1):81-85
Statement of Responsibility
W. Kamleh, D. Adams, D. B. Leinweber and A. G. Williams
Conference Name
Abstract
The action of the overlap-Dirac operator on a vector is typically implemented
in directly through a multi-shift conjugate gradient solver. The compute-time
this takes to evaluate depends upon the condition number $\kappa$ of the matrix
that is used as the overlap kernel. We examine the low-lying spectra of various
candidate kernels in an effort to optimise $\kappa$, thereby speeding up the
overlap evaluation.
School/Discipline
Dissertation Note
Provenance
Description
Copyright © 2002 Published by Elsevier Science B.V. All rights reserved. Copyright © 2001. Submitted to Cornell University’s online archive www.arXiv.org in 2001 by Waseem Kamleh. Post-print sourced from www.arxiv.org.