Speaker
Robert Mawhinney
(Columbia University)
Description
The RBC and UKQCD Collaborations continue to produce 2+1 flavor domain wall fermion ensembles, currently focusing on an ensemble with a $96^3 \times 192$ volume on SUMMIT at ORNL with $1/a = 2.8$ GeV, and smaller ensembles at stronger couplings. The $1/a = 2.8$ GeV ensemble uses the Exact One Flavor Algorithm for the strange quark, along with the Multisplitting Preconditioned Conjugate Gradient for solving the Dirac equation. We report on our progress and experience with the $1/a = 2.8$ GeV ensemble, along with results from studying the diffusion of topological charge on a variety of our coarser ensembles.
Authors
Chulwoo Jung
(Brookhaven National Laboratory)
David Murphy
(Massachusetts Institute of Technology)
Jiqun Tu
(Columbia University)
Robert Mawhinney
(Columbia University)