Accelerating Ab Initio Nuclear Physics Calculations with GPUs
Hugh Potter, Dossay Oryspayev, Pieter Maris, Masha Sosonkina, James P. Vary, Sven Binder, Angelo Calci, Joachim Langhammer, Robert Roth, Ümit V. Çatalyürek, Érik Saule · arXiv (Cornell University) · 2014
This paper describes some applications of GPU acceleration in ab initio nuclear structure calculations. Specifically, we discuss GPU acceleration of the software package MFDn, a parallel nuclear structure eigensolver. We modify the matrix construction stage to run partly on the GPU. On the Titan supercomputer at the Oak Ridge Leadership Computing Facility, this produces a speedup of approximately 2.2x - 2.7x for the matrix construction stage and 1.2x - 1.4x for the entire run.