DDalphaAMG for Twisted Mass Fermions

Abstract

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.

Comments: 7 pages, 3 figures, talk presented at the 34th International Symposium on Lattice Field Theory (LATTICE 2016), 24-30 July 2016, University of Southampton, UK