Access

TOP    Events & Outreach    R-CCS Cafe    The 250th R-CCS Cafe (Sep 4, 2023)

The 250th R-CCS Cafe (Sep 4, 2023)

Japanese
Details
Date Mon, Sep 4, 2023
Time 4:00 pm - 5:20 pm (4 pm - 5 pm Talks, 5 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

Toshiyuki Imamura

Large-scale Parallel Numerical Computing Technology Research Team
Team Leader

Fumiyoshi Shoji

HPC Usability Development Unit
Unit Leader

Satoshi Matsuoka

Director

Talk Titles and Abstracts

1st Speaker: Toshiyuki Imamura

Title:
Recent activities on Multiple- and Mixed-Precision computing
Abstract:
We recently conducted multiple-precision computing and a more fine-grained approach to mixed-precision computing. We have proposed a new design for BLAS that can handle multiple- and mixed-precision computations. Our templated mixed-precision BLAS (tmBLAS) addresses weaknesses in existing BLAS by decoupling the data types of each operand and operator using C++ generic programming, with explicit descriptions of operators and type-up/down-castings. We have released a prototype implementation from the R-CCS Git Hub that instantiates routines with FP{16, 32, 64, 128} and DD data types with those operations in one level with higher precision than the data precision. Also, a recent discussion on lower-precision approaches for emulating higher-precision calculation will be argued at the presentation time.

2nd Speaker: Fumiyoshi Shoji

Title:
HPCI2.0 for Fugaku-next
Abstract:
HPCI is one of the important infrastructures for promoting the R&D of computer and computational science in Japan. More than ten years have passed since the HPCI was launched in 2011. In the past ten years, many remarkable outcomes have been produced by assists of the HPCI; however, many issues occurred in the operation and organizing of the HPCI. It is the time to evaluate its activities over the past ten years and to consider the improvements for the next ten years.
In this presentation, I will discuss the issues of the current utilization system of Fugaku and HPCI and consider how can we improve them for Fugaku-next.

3rd Speaker: Satoshi Matsuoka

Title:
‘Virtual Fugaku’ – Key to the Success of Fugaku and Beyond

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.

（Aug 31, 2023）