14–18 Jul 2015
Kobe International Conference Center
Asia/Tokyo timezone

Optimization of Lattice QCD with CG and multi-shift CG on Intel Xeon Phi Coprocessor

17 Jul 2015, 16:50
20m
405 (Kobe International Conference Center)

405

Kobe International Conference Center

6-9-1 Minatojima-nakamachi, Chuo-ku, Kobe, Hyogo 650-0046, Japan
Talk Algorithms and Machines Algorithms and Machines

Speaker

Dr hirokazu Kobayashi (Intel K. K.)

Description

We implemented lattice QCD on Xeon Phi coprocessor using intrinsics as vectorization method, and OpenMP and MPI as parallelization method. Our implementation uses double precision conjugate gradient (CG) solver which also supports multi-shift CG. We present our optimization methodology and performance for key steps in CG algorithms.

Primary author

Dr hirokazu Kobayashi (Intel K. K.)

Co-authors

Dr Shinji Takeda (Kanazawa University) Dr Yoshifumi Nakamura (RIKEN AICS) Prof. Yoshinobu Kuramashi (University of Tsukuba/ RIKEN AICS)

Presentation materials