Kamleh, W.Adams, D.Leinweber, D.Williams, A.2006-07-052006-07-052002Nuclear Physics B - Proceedings Supplements, 2002; 109(1):81-850920-5632http://hdl.handle.net/2440/11060Copyright © 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.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.enJournal article002002049710.1016/S0920-5632(02)01394-40001762625000152-s2.0-003662801860352Kamleh, W. [0000-0002-6177-5366]Leinweber, D. [0000-0002-4745-6027]Williams, A. [0000-0002-1472-1592]