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PoS(LATTICE2016)259

DDalphaAMG for Twisted Mass Fermions

S. Bacchio, C. Alexandrou, J. Finkenrath, A. Frommer, K. Kahl, M. Rottmann

in 34th annual International Symposium on Lattice Field Theory

Contribution: pdf

Abstract

We present the Adaptive Aggregation-based Domain Decomposition Multigrid method extended to the twisted mass fermion discretization action. We show comparison of results as a function of tuning the paramaters 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.