Computer Science > Numerical Analysis
[Submitted on 17 Jul 2018 (v1), last revised 21 Sep 2020 (this version, v3)]
Title:Minimizing convex quadratic with variable precision conjugate gradients
View PDFAbstract:We investigate the method of conjugate gradients, exploiting inaccurate matrix-vector products, for the solution of convex quadratic optimization problems. Theoretical performance bounds are derived, and the necessary quantities occurring in the theoretical bounds estimated, leading to a practical algorithm. Numerical experiments suggest that this approach has significant potential, including in the steadily more important context of multi-precision computations
Submission history
From: Ehouarn Simon [view email][v1] Tue, 17 Jul 2018 14:10:15 UTC (30 KB)
[v2] Fri, 28 Jun 2019 09:06:34 UTC (30 KB)
[v3] Mon, 21 Sep 2020 09:06:50 UTC (543 KB)
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