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Thread: Enable 6 core processor

  1. #1
    Join Date
    Oct 2008
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    458
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Question Enable 6 core processor

    Is there anything I need to do to enable all 6 cores of my hexacore processor?

    I hear for multicore booting I need to do the following:

    Code:
    sudo gedit /etc/init.d/rv
    Change

    CONCURRENCY=none
    to

    CONCURRENCY=shell
    Is that all?

  2. #2
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    Re: Enable 6 core processor

    Found this......forgot about the SMP kernel.

    In addition someone else's experience.

    From a Bulletin Board:
    Code:
    > Does anyone know if a /proc or /sys tweak can be used to enable/disable
    > a CPU or CPU core in a running Linux system?
    
    echo 0 >> /sys/devices/system/cpu/cpu1/online
    
    I didn't know that until I just Googled for it. It's a nice trick :)
    Last edited by jtarin; May 18th, 2011 at 05:06 AM.
    EasyBCD.
    PrintersDatabase
    Boot Info Script: How to
    The post above and the post below suffer from the Rashomon effect!

  3. #3
    Join Date
    Oct 2008
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    458
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: Enable 6 core processor

    Quote Originally Posted by jtarin View Post
    Found this......forgot about the SMP kernel.

    In addition someone else's experience.

    From a Bulletin Board:
    Code:
    > Does anyone know if a /proc or /sys tweak can be used to enable/disable
    > a CPU or CPU core in a running Linux system?
    
    echo 0 >> /sys/devices/system/cpu/cpu1/online
    
    I didn't know that until I just Googled for it. It's a nice trick :)
    I have the BURG boot loader with Natty Narwhal.

  4. #4
    Join Date
    Dec 2008
    Location
    43° 7' 41" 131° 54' 3"
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    Re: Enable 6 core processor

    It's only a front for Grub2.....google Ubuntu docs on editing.

    And I have the EasyBCD Boot loader with Windows 7 and chainloading Ubuntu Maverick Meerkat......so....NYAH!!
    Last edited by jtarin; May 18th, 2011 at 05:18 AM.
    EasyBCD.
    PrintersDatabase
    Boot Info Script: How to
    The post above and the post below suffer from the Rashomon effect!

  5. #5
    Join Date
    Oct 2008
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    458
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Question Re: Enable 6 core processor

    Quote Originally Posted by jtarin View Post
    It's only a front for Grub2.....google Ubuntu docs on editing.

    And I have the EasyBCD Boot loader with Windows 7 and chainloading Ubuntu Maverick Meerkat......so....NYAH!!
    Its a what?

  6. #6
    Join Date
    Oct 2007
    Beans
    245
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: Enable 6 core processor

    AFAIK Ubuntu will work happily with 6 cores out of the box; I have it running on my quad-core fine, and I've had Debian on a 10-CPU machine with no problems.
    Last edited by bwang; May 18th, 2011 at 06:04 AM.
    Hardware:
    Core i7 950@3.06 Ghz, 12 GB RAM, 2x Nvidia GeForce GTX 470 1280 MB, Ubuntu 10.10

  7. #7
    Join Date
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    Ubuntu 11.10 Oneiric Ocelot

    Wink Re: Enable 6 core processor

    Quote Originally Posted by bwang View Post
    AFAIK Ubuntu will work happily with 6 cores out of the box; I have it running on my quad-core fine, and I've Debian on a 10-CPU machine with no problems.
    Thanks

  8. #8
    Join Date
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    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: Enable 6 core processor

    Do you guys know a way to get KDEnlive to take advantage of the 6 cores?

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