18 citations · 53 across the 5 of their papers we have counts for
5 papers
Force Gradient Integrators
A. D. Kennedy, M. A. Clark, P. J. Silva
We present initial results of the use of Force Gradient integrators for lattice field theories. These promise to give significant performance improvements, especially for light fer…
Tuning HMC using Poisson brackets
M. A. Clark, A. D. Kennedy, P. J. Silva
We discuss how the integrators used for the Hybrid Monte Carlo (HMC) algorithm not only approximately conserve some Hamiltonian but exactly conserve a nearby shadow Hamiltonian…
Speeding up HMC with better integrators
M. A. Clark, A. D. Kennedy
We discuss how dynamical fermion computations may be made yet cheaper by using symplectic integrators that conserve energy much more accurately without decreasing the integration s…
Accelerating Fermionic Molecular Dynamics
M. A. Clark, A. D. Kennedy
We consider how to accelerate fermionic molecular dynamics algorithms by introducing n pseudofermion fields coupled with the nth root of the fermionic kernel. This reduces the maxi…
Comparing the R algorithm and RHMC for staggered fermions
M. A. Clark, B. Joo, A. D. Kennedy
The R algorithm is widely used for simulating two flavours of dynamical staggered fermions. We give a simple proof that the algorithm converges to the desired probability distribut…