English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Performance Evaluation of Large Scale Electron Dynamics Simulation under Many-core Cluster based on Knights Landing

Hirokawa, Y., Boku, T., Sato, S., & Yabana, K. (2018). Performance Evaluation of Large Scale Electron Dynamics Simulation under Many-core Cluster based on Knights Landing. In Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region (HPC Asia 2018) (pp. 183-191). New York: ACM. doi:10.1145/3149457.3149465.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0002-CCE5-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-CCE6-5
Genre: Conference Paper

Files

show Files
hide Files
:
p183-hirokawa.pdf (Publisher version), 418KB
Name:
p183-hirokawa.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
2018
Copyright Info:
Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the owner/author(s).
License:
-

Locators

show
hide
Locator:
https://dx.doi.org/10.1145/3149457.3149465 (Publisher version)
Description:
-

Creators

show
hide
 Creators:
Hirokawa, Y.1, Author
Boku, T.2, Author
Sato, S.3, Author              
Yabana, K.2, Author
Affiliations:
1Graduate School of Systems and Information Engineering, University of Tsukuba, ou_persistent22              
2Center for Computational Sciences, University of Tsukuba, ou_persistent22              
3Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              

Content

show
hide
Free keywords: Intel Xeon Phi, Knights Landing, Electron Dynamics Simulation
 Abstract: We have been developing an advanced scientific code called "ARTED" for an electron dynamics simulation using the first-order computation of materials to be ported to various large-scale parallel systems including the "K" Computer, which was previously Japan's fastest supercomputer. In this paper, the implementation and performance evaluation of the ARTED code used in Intel's latest many-core processor, the Knights Landing (KNL) stand-alone cluster, are described based on past research on porting the code to the Knights Corner (KNC) accelerator. Our target system is Oakforest-PACS, which is currently the fastest supercomputer in Japan. For performance tuning on KNL, the largest issue is how to utilize multiple levels of parallelism, such as the instruction level (512-bit SIMD instruction), hardware thread (4 threads/core), and large number of cores. We focus on the dominant computation part of the code, where 25 points of a 3D stencil computation are required. We successfully optimize this part to achieve 758.4 GFLOPS per node, which corresponds to 24.8% of the theoretical peak on the node of Oakforest-PACS using an Intel Xeon Phi 7250 (3046 GFLOPS peak). It is also shown that the KNL sustained performance is better than that of the two KNC accelerator cards. The entire ARTED code implies other time step computing, and was designed for a large-scale parallel execution using MPI, whereas single-node parallelization is achieved using OpenMP. We finally evaluate the entire parallel execution performance with up to 128 nodes.

Details

show
hide
Language(s): eng - English
 Dates: 20182018
 Publication Status: Published in print
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Method: Internal
 Identifiers: DOI: 10.1145/3149457.3149465
 Degree: -

Event

show
hide
Title: International Conference on High Performance Computing in Asia-Pacific Region (HPC Asia)
Place of Event: Tokyo, Japan
Start-/End Date: 2018-01-28 - 2018-01-31

Legal Case

show

Project information

show

Source 1

show
hide
Title: Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region (HPC Asia 2018)
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: New York : ACM
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 183 - 191 Identifier: -