Accelerating Ab Initio Nuclear Physics Calculations with GPUs
Potter, Hugh · Oryspayev, Dossay · Maris, Pieter · Sosonkina, Masha · Vary, James · Binder, Sven · Calci, Angelo · Langhammer, Joachim · Roth, Robert · Çatalyürek, Ümit · Saule, Erik
Original · EN
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.
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