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R. Todd Evans

Publications and source records attributed to R. Todd Evans.

2 recordsLinked to original sources

Student Cluster Competition 2017, Team University ofTexas at Austin/Texas State University: Reproducing Vectorization of the Tersoff Multi-Body Potential on the Intel Skylake and NVIDIA V100 Architectures

This paper satisfies the reproducibility challenge of the Student Cluster Competition at Supercomputing 2017. We attempted to reproduce the results of Höhnerbach et al. (2016) for an implementation of a vectorized code for the Tersoff multi-body potential kernel of the molecular dynamics code Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). We investigated accuracy, optimization performance, and scaling with our Intel CPU and NVIDIA GPU based cluster.

cs.DC

A determination of the B_s^0 and B_d^0 mixing parameters in 2+1 lattice QCD

We report on the advances in our unquenched calculation of the matrix elements relevant for the analysis of B^0-\bar B^0 mixing using the Asqtad (light quark) and Fermilab (heavy quark) actions. We have calculated the hadronic parameters for the mass and width differences in the neutral B meson system. Preliminary results are presented for f_{B_q}^2 B_q as well as for the ratio ξ^2=f_{B_s}^2 B_{B_s}/f_{B_d}^2 B_{B_d}.

hep-lat