Profile

Cover photo
Verified name
Naoki Shibata
Works at Nara Institute of Science and Technology
Attended Osaka University
Lives in Kyoto
48 followers|464,636 views
AboutPostsPhotosYouTubeReviews

Stream

Naoki Shibata

Shared publicly  - 
 
And now SLEEF 2.100 is released.
AVX-512F and LLVM Clang Extended Vectors are newly supported in this release.

In order to add support for AVX-512F, I did code cleanup. Portability is greatly improved as a result. SLEEF can utilize _mm512_getexp_pd and _mm_getmant_pd.

LLVM Clang Extended Vectors can be also utilized for porting SLEEF to another architecture. The quality of generated code with Clang Extended Vectors is pretty good, and it is much better than I tried a similar thing with gcc's vector extension.
Shibatch's software repository provides free software made by Naoki Shibata
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
We received a best demo award at IPSJ DPS workshop 2016.
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
I earned 50 points by sharing my local knowledge on Google and now I've got an official Level 3 Local Guides badge to prove it.
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
I released version 1.10 of BAUM library. It can now be used from Java. A few potentially serious bugs are also fixed.
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
I released a new software titled "BAUM : Library for Recognizing Blur-Resistant Markers."
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
We demonstrated our research at an exhibition.
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
Today I released SLEEF 2.90.
In this release, all the reported bugs should be fixed.
Shibatch's software repository provides free software made by Naoki Shibata
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
SLEEF port to Julia language is now ongoing thanks to JuliaMath community.
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
Today I released version 1.33 of SSRC.
I am trying monthly release of any one of my software packages, but it was skipped last month since I was too busy.

In this release of SSRC, compilation support for Mac OS X and support for ARM NEON instructions are added.
Shibatch's software repository provides free software made by Naoki Shibata
1
Jan van Westland's profile photoNaoki Shibata's profile photo
7 comments
 
Good news! SSRC is now adopted by NixOS. This is great motivation for developing SSRC.
Add a comment...

Naoki Shibata

Shared publicly  - 
 
I've just released a new version of SSRC. More than 10 years has passed since the last release. In this release, the FFT subroutine is replaced and the new FFT can utilize AVX and SSE instructions.
Shibatch Audio Tools provides free audio tools made by Naoki Shibata
1
Jan van Westland's profile photo
 
I have been using SSRC for some years now (together with FinalCD). It's a great tool that deserves to be develeoped further. I am so thrilled about this new release. Thank you so much.
Add a comment...

Naoki Shibata

Shared publicly  - 
 
I don't know if someone is reading this, but here is a tip for making CPU load lower when we do some processing with OpenCL on nVidia GPUs.

1. Always use pinned memory when you transfer data between a device and the host. Reading and writing buffer always block and waste CPU if you don't use pinned memory.

2. Never use a command that blocks. With nVidia GPUs, all blocking commands involve a busy wait that wastes CPU.  Avoid them and you need to manually poll and sleep in order to wait until a command finishes.

3. If you don't use blocking commands, you need to manually flush the command queue.
1
Add a comment...

Naoki Shibata

Shared publicly  - 
 
I wrote a new article titled "Connected Component Labeling Algorithm for GPGPU."
1
Add a comment...
Story
Tagline
Computer Scientist, Associate Professor at Nara Institute of Science and Technology
Introduction
My main research areas are mobile computing, inter-vehicle communication, wireless sensor networks, multimedia communication and parallel algorithms for GPGPU.
Education
  • Osaka University
    Computer Science, 2001
Basic Information
Gender
Male
Looking for
Networking
Other names
柴田 直樹
Work
Occupation
Computer Scientist, Associate Professor
Employment
  • Nara Institute of Science and Technology
    Computer Scientist, Associate Professor, 2012 - present
  • Shiga University
    Computer Scientist, Associate Professor, 2004 - 2012
  • Nara Institute of Science and Technology
    Computer Scientist, Assistant Professor, 2001 - 2003
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Kyoto
Previously
Osaka - Nara - Urbana, IL - London
土曜日も診療しているので重宝しています。 平日の方が空いています。
Public - 7 months ago
reviewed 7 months ago
ダイエーの系列店で今はイオン傘下の店です. 総菜が割と充実しています. 電子マネーはWAONが使えます.
Public - 8 months ago
reviewed 8 months ago
処方箋受付はもちろん、雑貨や菓子類も置いています。
Public - 8 months ago
reviewed 8 months ago
5 reviews
Map
Map
Map
さっと入れて素早く買い物できるので重宝してます。 夜遅くまで開いてるので便利。
Public - 8 months ago
reviewed 8 months ago