EFFICIENCY OF DIFFERENT MATRIX INVERSION METHODS APPLIED TO WILSON FERMIONS

G. Cella, A. Hoferichter, V. K. Mitrjushkin, M. Müller-Preussker and A. Viceré
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G. Cella: INFN in Pisa and Dipartimento di Fisica dell'Universitá di Pisa, Italy
A. Hoferichter: Humboldt-Universität zu Berlin, Institut für Physik, 10099 Berlin, Germany
V. K. Mitrjushkin: Humboldt-Universität zu Berlin, Institut für Physik, 10099 Berlin, Germany;
M. Müller-Preussker: Humboldt-Universität zu Berlin, Institut für Physik, 10099 Berlin, Germany
A. Viceré: INFN in Pisa and Dipartimento di Fisica dell'Universitá di Pisa, Italy

International Journal of Modern Physics C (IJMPC), 1996, vol. 07, issue 06, 787-809

Abstract: We compare different conjugate gradient–like matrix inversion methods (CG, BiCGstab1 and BiCGstab2) employing for this purpose the compact lattice quantum electrodynamics (QED) with Wilson fermions. The main goals of this investigation are the CPU time efficiency of the methods as well as the influence of machine precision on the reliability of (physical) results especially close to the 'critical' lineκc(β).

Keywords: Matrix Inversion Methods; Lattice Gauge Theory; Wilson Fermions (search for similar items in EconPapers)
Date: 1996
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DOI: 10.1142/S0129183196000661

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