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Naoki Shibata
Works at Nara Institute of Science and Technology
Attended Osaka University
Lives in Kyoto
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Naoki Shibata

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SLEEF port to Julia language is now ongoing thanks to JuliaMath community.
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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.
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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.
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I wrote a new article titled "Connected Component Labeling Algorithm for GPGPU."
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I received a best demonstration award at DPSWS2015 with this project.
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Now at KIX, heading to Las Vegas.
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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
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Thank you for your comment. And I am sorry to say that I am still too busy to write code for my hobby projects. Maybe from November I will start working on these projects.
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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
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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.
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I released version 1.10 of BAUM library. It can now be used from Java. A few potentially serious bugs are also fixed.
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I released a new software titled "BAUM : Library for Recognizing Blur-Resistant Markers."
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We demonstrated our research at an exhibition.
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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
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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 - 3 months ago
reviewed 3 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 - 4 months ago
reviewed 4 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 - 4 months ago
reviewed 4 months ago
5 reviews
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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 - 4 months ago
reviewed 4 months ago