A parallel SSOR preconditioner for lattice QCD

被引：4

作者：

Fischer, S

Frommer, A

Glassner, U

Gusken, S

Hoeber, H

Lippert, T

Ritzenhofer, G

Schilling, K

Siegert, G

Spitz, A

机构：

[1] DESY, D-22603 HAMBURG, GERMANY

[2] UNIV GESAMTHSCH WUPPERTAL, DEPT PHYS, D-42097 WUPPERTAL, GERMANY

来源：

NUCLEAR PHYSICS B | 1997年

关键词：

D O I：

10.1016/S0920-5632(96)00836-5

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A parallelizable SSOR preconditioner scheme for Krylov subspace iterative solvers for lattice QCD applications involving Wilson fermions is presented. In actual Hybrid Monte Carlo and quark propagator calculations it helps reduce the number of iterations by a factor of 2 compared to conventional odd-even preconditioning. This corresponds to a gain in cpu-time of 30%-70% over odd-even preconditioning.

引用

页码：990 / 992

页数：3

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