arXiv:1412.5989·v1·Computational Physics
Accelerating Ab Initio Nuclear Physics Calculations with GPUs
Hugh Potter · Dossay Oryspayev · Pieter Maris · Masha Sosonkina · James Vary · Sven Binder · Angelo Calci · Joachim Langhammer · Robert Roth · Ümit Çatalyürek · Erik Saule
Abstract
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.
Comments: 9 pages, 4 figures