Speaker
Dr
Meifeng Lin
(Brookhaven National Laboratory)
Description
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 PC clusters. We discuss the optimization strategies involved before and after the automatic code generation with R-Stream and present some preliminary benchmark results.
Primary author
Dr
Meifeng Lin
(Brookhaven National Laboratory)
Co-authors
Chulwoo Jung
(Brookhaven National Laboratory)
Eric Papenhausen
(Stony Brook University)
M. Harper Langston
(Reservoir Labs)
Richard Lethin
(Reservoir Labs)
Taku Izubuchi
(RIKEN BNL Research Center)
