SSOR preconditioning in simulations of the QCD Schrödinger functional

✍ Scribed by Marco Guagnelli; Jochen Heitger

• Book ID: 104110729
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 115 KB
• Volume: 130
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/s0010-4655(00)00012-6

✦ Synopsis

We report on a parallelized implementation of locally-lexicographic SSOR preconditioning for O(a) improved lattice QCD with Schrödinger functional boundary conditions. Numerical simulations in the quenched approximation at parameters in the light quark mass region demonstrate that a performance gain of a factor ∼1.5 over even-odd preconditioning can be achieved.