Performance of several Lanczos eigensolvers with HISQ fermions

We investigate the state-of-the-art Lanczos eigensolvers available in the Grid and QUDA libraries. They include Implicitly Restarted Lanczos, Thick-Restart Lanczos, and Block Lanczos. We measure and analyze their performance for the Highly Improved Staggered Quark (HISQ) Dirac operator. We also disc...

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Bibliographic Details
Main Authors Jeong, Hwancheol, DeTar, Carleton, Gottlieb, Steven
Format Journal Article
LanguageEnglish
Published 10.01.2022
Subjects
Physics - Computational Physics
Physics - High Energy Physics - Lattice
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Summary:We investigate the state-of-the-art Lanczos eigensolvers available in the Grid and QUDA libraries. They include Implicitly Restarted Lanczos, Thick-Restart Lanczos, and Block Lanczos. We measure and analyze their performance for the Highly Improved Staggered Quark (HISQ) Dirac operator. We also discuss optimization of Chebyshev acceleration.
DOI:10.48550/arxiv.2201.03755