New group photo uploaded (2020)

Due to the Covid-19, an online party was held at the end of this year.
We took a screenshot as the new group photo.
Let’s enjoy our life in this lab and research together!

Prof. Takizawa gave a talk at PCCC20

Prof. Takizawa gave a talk at PCCC20 on 15th Dec.
The details of the PCCC20 “The Forefront of Advanced HPC system” symposium are here.
Here are the details of this talk.

Zhao made a presentation @BigData’20

Hello there. This is Zhao who just finished the presentation a few minutes ago and writing this web note now.
2020 IEEE International Conference on Big Data (IEEE BigData 2020) was held from 10th to 13th Dec.
It is quite sad that the conference becomes virtually this year because of the COVID-19. However, meanwhile, thanks to the virtual conference that I could experience attending the sessions in my Kotatsu, lol.
I had a presentation in the Third International Workshop of Internet of Things Data Analytics (IoTDA) about my currect research project.

  • Failure Prediction in Datacenters Using Unsupervised Multimodal Anomaly Detection
    Minglu Zhao*, Reo Furuhata*, Mulya Agung†, Hiroyuki Takizawa†, and Tomoya Soma‡
    *Graduate School of Information Science, Tohoku University
    †Cyberscience Center, Tohoku University
    ‡Corporate Business Development Division, NEC Corporation

Here are the screenshots of my pre-recorded video and the real-time Q&A session.

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!

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

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.

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.
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.

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)