PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Poster
Performance of several Lanczos eigensolvers with HISQ fermions
H. Jeong*, C. DeTar and S. Gottlieb
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Pre-published on: May 16, 2022
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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: https://doi.org/10.22323/1.396.0053
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