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The 269th R-CCS Cafe (Sep 13, 2024)

Japanese
Details
Date Fri, Sep 13, 2024
Time 3:00 pm - 5:00 pm (3:00 pm - 3:40 pm Talks, 3:50 pm - 4:10 Discussions, 4:10 pm - Free discussion and coffee break)
City Kobe, Japan/Online
Place

Lecture Hall (6th floor) at R-CCS, Online seminar on Zoom

  • If you are not affiliated with R-CCS and would like to attend R-CCS Cafe, please email us at r-ccs-cafe[at]ml.riken.jp.
Language Presentation Language: English
Presentation Material: English
Speakers

Shingo Ito

Computational Biophysics Research Team
Researcher

Seydou Ba

Supercomputing Performance Research Team
Researcher

Talk Titles and Abstracts

1st Speaker: Shingo Ito

Title:
Allosteric regulation of L-tryptophan syntheses in tryptophan synthase
Abstract:
Tryptophan synthase (TSase), which consists of two subunits, α and β, is a bifunctional enzyme that catalyzes the last two steps of L-tryptophan biosynthesis. The conformational changes of some domains in α and β subunits are strongly coupled with the chemical reactions in each subunit. Using umbrella sampling MD simulations at all-atom and QM/MM models, we revealed that the hydrogen bonds network, called the allosteric network, regulates the conformational change and reactions.

2nd Speaker: Seydou Ba

Title:
Benchmarking activities for architecture evaluation and interconnect network design
Abstract:
In this talk we present benchmarking performances of different node architectures of Fujitsu's A64FX processor (24vs48 cores). We also present our approach to use traces to extract communication patterns from benchmark applications and then to extrapolate future data movement for the design of next-gen interconnect networks.

Important Notes

  • Please turn off your video and microphone when you join the meeting.
  • The broadcasting may be interrupted or terminated depending on the network condition or any other unexpected event.
  • The program schedule and contents may be modified without prior notice.
  • Depending on the utilized device and network environment, it may not be able to watch the session.
  • All rights concerning the broadcasted material will belong to the organizer and the presenters, and it is prohibited to copy, modify, or redistribute the total or a part of the broadcasted material without the previous permission of RIKEN.

（Sep 9, 2024）