Numerical experiments using deflation with the HISQ action

Abstract

We report on numerical experiments using deflation to compute quark propagators for the highly improved staggered quark (HISQ) action. The method is tested on HISQ gauge configurations, generated by the MILC collaboration, with lattice spacings of 0.15 fm, with a range of volumes, and sea quark masses down to the physical quark mass.

8 pages. Poster presented at the lattice 2017 conference

References in corpus (8)

• Effective noise reduction techniques for disconnected loops in Lattice QCD
• Adaptive multigrid algorithm for the lattice Wilson-Dirac operator
• Local coherence and deflation of the low quark modes in lattice QCD
• Deflation acceleration of lattice QCD simulations
• Computing and deflating eigenvalues while solving multiple right hand side linear systems in Quantum Chromodynamics
• Deflated GMRES for Systems with Multiple Shifts and Multiple Right-Hand Sides
• Deflated and restarted symmetric Lanczos methods for eigenvalues and linear equations with multiple right-hand sides
• The eigSUMR inverter for overlap fermion