Optimizing the domain wall fermion Dirac operator using the R-Stream source-to-source compiler
High Energy Physics - Lattice
2015-12-07 v1 Computational Physics
Abstract
The application of the Dirac operator on a spinor field, the Dslash operation, is the most computation-intensive part of the lattice QCD simulations. It is often the key kernel to optimize to achieve maximum performance on various platforms. Here we report on a project to optimize the domain wall fermion Dirac operator in Columbia Physics System (CPS) using the R-Stream source-to-source compiler. Our initial target platform is the Intel PC clusters. We discuss the optimization strategies involved before and after the automatic code generation with R-Stream and present some preliminary benchmark results.
Cite
@article{arxiv.1512.01542,
title = {Optimizing the domain wall fermion Dirac operator using the R-Stream source-to-source compiler},
author = {Meifeng Lin and Eric Papenhausen and M. Harper Langston and Benoit Meister and Muthu Baskaran and Taku Izubuchi and Chulwoo Jung},
journal= {arXiv preprint arXiv:1512.01542},
year = {2015}
}
Comments
7 pages, 4 figures. Proceedings of the 33rd International Symposium on Lattice Field Theory, July 14 -18, 2015, Kobe, Japan