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We perform hybrid Monte-Carlo simulation of $N_f=2+1+1 $ lattice QCD withdomain-wall quarks at the physical point. The simulation is carried out on the$ L^3 \times T = 64^3 \times 64 $ lattice with lattice spacing $a \sim 0.064 $fm ($ L > 4 $ fm, and $ M_\pi L > 3 $), using the Nvidia DGX-1 (8 V100 GPUsinterconnected by the NVLink). To attain the maximal chiral symmetry for afinite extent ($N_s=16$) in the fifth dimension, we use the optimal domain-wallfermion for the quark action, together with the exact one-flavor action fordomain-wall fermion. We outline the salient features of our simulation (withouttopology freezing, and small residual mass), together with the preliminaryresult of the masses of $ \pi^\pm $, $ K^\pm $, and $ D^\pm $.

Simulation of dynamical (u,d,s,c) domain-wall/overlap quarks at the physical point