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Type: Posts; User: jabak

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  1. Replies
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    1,915

    Re: Image editing problem

    I already found that out. At the beginning i thought it was completely abondoned.
    But thanks.


    My vendor isnt providing an SDK and anyway, most of the samples from the SDKs are quite large and...
  2. Thread: program error

    by jabak
    Replies
    4
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    1,733

    Re: program error

    OpenCL has its own error codes. Try to use them to figure out whats going wrong.
    And compare both sourcecodes to find differences.
  3. Thread: program error

    by jabak
    Replies
    4
    Views
    1,733

    Re: program error

    Hm the error is not very helpful.



    // Includes
    #include <stdio.h>
    #include <stdlib.h>
    #include <stdbool.h>
    #include <CL/cl.h>
  4. Re: when to use get_global id and get_local id in opencl?

    Yes you got it.

    I think this picture is better than the last one i posted and will show how it works:
    http://www.fixstars.com/images/openclbook/dtp_462724_USER_CONTENT_0_html_3bb3f126.jpg
    One...
  5. Re: when to use get_global id and get_local id in opencl?

    Yes, the kernel will run globalWorkSize times.
    localWorkSize items will be executed in parallel.

    globalWorkSize = localWorkSize * numberOfGroups;
  6. Replies
    3
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    1,915

    Re: Image editing problem

    Can no one imagine a problem?
  7. Re: when to use get_global id and get_local id in opencl?

    http://www.codeproject.com/KB/showcase/Work-Groups-Sync/image001.gif

    In the picture above you can see how id works in one-dimensional.
    Get it? You can use them both in most cases.
  8. Replies
    3
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    1,915

    Image editing problem

    Hello Khronos Community,

    I've tried to run the code given in http://www.khronos.org/message_boards/viewtopic.php?f=37&t=2495 with the given input picture but i only get a totally black 512x512...
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