Coulomb and Landau Gauge Fixing in GPUs using CUDA and MILC

Abstract

In this work, we present the GPU implementation of the overrelaxation and steepest descent method with Fourier acceleration methods for Laudau and Coulomb gauge fixing using CUDA for SU(N) with N>2. A multi-GPU implementation of the overrelaxation method is also presented using MPI and CUDA. The GPU performance was measured on BlueWaters and compared against the gauge fixing of the CPU MILC code.

Conference Proceedings, 7 pages and 5 figures. Talk presented at the 32nd International Symposium on Lattice Field Theory, Columbia University, New York City, NY