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DDalphaAMG for Twisted Mass Fermions
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We present the Adaptive Aggregation-based Domain Decomposition Multigrid method extended to the twisted mass fermion discretization action. We show comparisons of results as a function of tuning the parameters that enter the twisted mass version of the DDalphaAMG library (https://github.com/sbacchio/DDalphaAMG). Moreover, we linked the DDalphaAMG library to the tmLQCD software package and give details on the performance of the multigrid solver during HMC simulations at the physical point.
Forward citations
Cited by 2 Pith papers
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Moments of nucleon generalized parton distributions from lattice QCD simulations at physical pion mass
The paper reports the first controlled lattice QCD extraction of the nucleon's second Mellin moments and vector and axial generalized form factors at the physical pion mass.
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Chiral rank-$k$ truncations for the multigrid preconditioner of Wilson fermions in lattice QCD
An SVD-based rank-k truncation of chirally split test vectors reduces Wilson fermion multigrid solve times on HSC and MILC ensembles.
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