Speaker
Dr
Frank Winter
(Thomas Jefferson National Accelerator Facility)
Description
The Low Level Virtual Machine (LLVM) compiler infrastructure is a
promising platform for development of code that features performance
portability across a wide variety of architectures. It's widely
embraced by HPC industry and academia and high performance code
generating backends are available and supported for many relevant
architectures such as CUDA, X86-64, PowerPC64 including extensions for
the A2Q processor.
The QDP-JIT/LLVM library leverages the source- and target-independent
code representation known as the LLVM intermediate representation
(IR) to generate LQCD kernels from a high level C++ API. Optimizer
passes transform the IR in a suitable way for the target platform.
We present the QDP-JIT technology and performance numbers resulting
from Chroma HMC for a variety of architectures including the new BG/Q
support.
Primary author
Dr
Frank Winter
(Thomas Jefferson National Accelerator Facility)
