Research Division on Supercomputing Systems

Japanese

Event

2020/12/05 Furuhata, Liu and Ebata made a presentation at CANDAR’20

Hello! I am Naoki Ebata, a master-course student.

The Eighth International Symposium on Computing and Networking (CANDAR’20) was held during 11/24~11/27.

Physical conference in Okinawa was canceled due to COVID-19 and the conference was held virtually.
I wanted to visit Okinawa…

In the conference, three students from our laboratory, Reo Furuhata, Liu Jiaheng and Naoki Ebata, have presented their research projects.

  • Reo Furuhata, Minglu Zhao, Mulya Agung, Ryusuke Egawa, and Hiroyuki Takizawa, “Improving the accuracy in SpMV implementation selection with machine learning,” The Eighth International Conference on Computing and Networking Workshops (CANDARW), 2020. [youtube]

 

  • Jiaheng Liu, Ryusuke Egawa, Mulya Agung, and Hiroyuki Takizawa, “A Conflict-Aware Capacity Control Mechanism for Last-Level Cache,” The Eighth International Conference on Computing and Networking Workshops (CANDARW), 2020. [youtube]

 

  • Naoki Ebata, Yoko Isobe, Ryusuke Egawa, and Hiroyuki Takizawa, “Polymorphic Data Layout for SX-Aurora TSUBASA Vector Engines,” The Eighth International Conference on Computing and Networking (CANDAR), 2020. [youtube]

 

Furuhata won Workshop Best Paper of LHAM! Congratulations! Details

They will improve their researches based on the received comments and questions at the conference!

2020/11/27 Workshop Best Paper of LHAM Award @CANDARW’20

Good evening, I am Furuhata, a M1 student.
I had a presentation in CANDARW’20 (The Eighth International Conference on Computing and Networking Workshops), from November 25, 2020 (JST) to November 27, 2020 (JST), taking place virtually this year. And I received the Workshop Best Paper of LHAM (International Workshop on Large-scale HPC Application Modernization). Even though I couldn’t go to Okinawa due to COVID-19, it still was a very meaningful experience for me.
It won’t be possible to receive such an award without all of co-authors and labmates’ help. I would like to express my gratitude again to all the members of the laboratory for their support of my research activities.
Improving the Accuracy in SpMV Implementation Selection with Machine Learning
Reo Furuhata*, Minglu Zhao*, Mulya Agung†, Ryusuke Egawa‡, Hiroyuki Takizawa†
*Graduate School of Information Sciences, Tohoku University
†Cyberscience Center, Tohoku University
‡Department of Information and Communication Engineering, Tokyo Denki University

2020/11/13 Agung gave a talk at SC20.

Agung made a presentation at the SC20 UrgentHPC Workshop.

The summary of his lightning talk can be accessed from the SC20 website:

Mulya Agung, “A Parallel Job Scheduling Method to Effectively Use Shared Heterogeneous Systems for Urgent Computations”, SC20, November 13.

2020/11/12 Prof. Egawa gave a talk at SC20.

Professor Egawa made a presentation at SC20.
The contents of the presentation are as follows.

Ryusuke Egawa, Souya Fujimoto, Tsuyoshi Yamashita, Daisuke Sasaki, Yoko Isobe, Youichi Shimomura, and Hiroyuki Takizawa “Exploiting the Potentials of the Second Generation SX-Aurora TSUBASA” SC20, November 12

2020/09/25 Fall Diploma Ceremony

On September 25, the Graduate School of Information Sciences held its fall diploma ceremony. At the ceremony, M2 student Mike Zielewski was awarded a master’s degree.
Message from the graduate:
> I am sincerely thankful to my professors for their guidance and to my labmates for their support during my studies. As I continue my research, I hope to be able to collaborate more with my fellow students.

2020/09/24 Prof. Takizawa gave a talk at NUG XXXII.

Prof. Takziawa gave a talk about performance evaluation of the second-generation SX-AUrora TSUBASA at NEC User Group Meeting on September 24.
The title is “Early Evaluation of the 2nd-generation SX-Aurora TSUBASA.”

The second-generation SX-Aurora TSUBASA is used in Supercomputer AOBA at the Cyberscience Center, which will start operation on October 1.

https://www.ss.cc.tohoku.ac.jp/

The performance evaluation results demonstrate that the second-generation SX-Aurora TSUBASA can efficiently execute memory-bound scientific computations.
We are looking forward to the operation start of Supercomputer AOBA.

2020/08/28 Retirement of our SX-ACE

On July 31, 2020 at 3:00 p.m., the Cyber Science Center’s supercomputing system with SX-ACE, has been shut down for a system upgrade.
The old system has been in operation since February 2015 and has produced numerous results while being used by researchers across Japan.
Here are SX-ACE at the time of its introduction (above) and before its shut down (below).
Let’s spot the difference!
The answer is added “translucent partitions”!
SX-ACE is cooled by cold air drawn in from the front, and the warmed air is exhausted from the back.
By separating them with partitions, the cooling efficiency was improved.
Improvements in performance have been made while operation!
The system is currently being replaced with a new system with SX-Aurora TSUBASA and is scheduled to be operational in October 2020.
We are looking forward to it, including its nickname!
Click here for the list of research results from the supercomputing system (In Japanese)

2020/07/29 IEEE Computer Society Japan Chapter xSIG Young Researcher Award @SWoPP 2020

The SWoPP 2020 will be held  on July 29-31 2020.  M1 student Ishizuka  got the IEEE Computer Society Japan Chapter xSIG Young Researcher Award at this conference.

2020/06/30 New Supercomputer System

Cyberscience Center’s new supercomputer system will be in service from Oct. 2020.

Performance information:

https://www.cc.tohoku.ac.jp/NEWS/newcomputer/new-supercomputer-2020.html

The Tohoku University is soliciting the nickname for this new system from the public.
If you are interested, please check the details at the following link:
(Please be reminded that the deadline for submission of proposals is on the 31st of July)

https://www.cc.tohoku.ac.jp/news.html?url=https://www.cc.tohoku.ac.jp/NEWS/nickname/nickname-supercomputer.html

2020/06/26 Mike and Sasaki made a poster presentation at ISC2020

Japan Captures TOP500 Crown with Arm-Powered Supercomputer.

The new TOP500 list was released at ISC (International Supercomputing Conference). The inaugural ISC 2020 Digital held from Monday, June 22 – Thursday, June 25, replacing the live event in Frankfurt attracted 4,735 participants from 94 countries, emerging as a very successful online event for the HPC community.

Our lab also participated in ISC 2020. M2 student Mike and M1 student Sasaki gave a poster presentation.

Challenges in Solving Scheduling Problems with the D-Wave Quantum Annealer
Michael R. Zielewski, Mulya Agung, Ryusuke Egawa, Hiroyuki Takizawa

Quantum Compiler : Automatic Vectorization Assisted by Quantum Annealer
Yuta Sasaki, Michael R. Zielewski, Mulya Agung, Ryusuke Egawa, Hiroyuki Takizawa

Please check the details at the following link:

http://2020.isc-program.com/