Publications (5)
Scaling Lattice QCD beyond 100 GPUs
R. Babich, M. A. Clark, B. Joó +3
Over the past five years, graphics processing units (GPUs) have had a transformational effect on numerical lattice quantum chromodynamics (LQCD) calculations in nuclear and particl…
Multigrid solver for clover fermions
J. C. Osborn, R. Babich, J. Brannick +4
We present an adaptive multigrid Dirac solver developed for Wilson clover fermions which offers order-of-magnitude reductions in solution time compared to conventional Krylov solve…
Solving Lattice QCD systems of equations using mixed precision solvers on GPUs
M. A. Clark, R. Babich, K. Barros +2
Modern graphics hardware is designed for highly parallel numerical tasks and promises significant cost and performance benefits for many scientific applications. One such applicati…
Adaptive multigrid algorithm for the lattice Wilson-Dirac operator
R. Babich, J. Brannick, R. C. Brower +5
We present an adaptive multigrid solver for application to the non-Hermitian Wilson-Dirac system of QCD. The key components leading to the success of our proposed algorithm are the…
Optimizing performance per watt on GPUs in High Performance Computing: temperature, frequency and voltage effects
D. C. Price, M. A. Clark, B. R. Barsdell +2
The magnitude of the real-time digital signal processing challenge attached to large radio astronomical antenna arrays motivates use of high performance computing (HPC) systems. Th…