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Type: Posts; User: valhalla

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  1. Replies
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    Yeah, you're right. Unrolling the loop makes it...

    Yeah, you're right. Unrolling the loop makes it clear.
    Thanks again for your help =D
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    Thanks, it really worked, but I didn't get way...

    Thanks, it really worked, but I didn't get way the previous kernel didn't work =/
    I though the barrier was only necessary in that line to synchronize the work-items.
    The C[i*Mdim + j] = tmp is...
  3. Replies
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    1,281

    Local memory in matrix multiplication

    Hi there,

    I was playing around with the memory model theses days until I saw an example
    how to use local memory in matrix multiplication.

    I got two kernels as follow:



    // A[M][N] *...
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    Thanks for all your help, It's working =D. When I...

    Thanks for all your help, It's working =D. When I changed the texture2D() to texture(),
    everything worked. The sadly thing about this is that It just worked in my linux machine,
    when tested it in...
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    2,864

    Yeah! Everything is working, but the texture is...

    Yeah! Everything is working, but the texture is not being displayed =/
    When I used glGetTexImage(), it returns the correct data, but when I
    try to use it, everything is black. It seems that...
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    Thanks, these changes made the write_imageui...

    Thanks, these changes made the write_imageui works as I was expecting.
    I read from the OpenCL image object and it returned the correct values. But,
    there was a problem: the texture data is not...
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    Thanks for your reply, I really didn't see that...

    Thanks for your reply, I really didn't see that =P, but making only this change in the texImage2D
    from GL_RGBA to GL_RGBA8UI didn't work in my gpu, neither in my cpu. Actually, I got an
    error when...
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    write_imagef and write_imageui

    Hi there,

    I was making an texture interoperability example, but I faced some problems when
    reading the texture data inside a kernel. First, i'll explain what i'm doing.

    I just created a kernel...
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    Texture with Interoperability, tutorial?

    Hi there,

    I'm playing around with opencl these days, but I stopped when trying
    interoperability with texture. Does anybody have a good tutorial about
    that? The problem that i'm facing is how to...
  10. Re: clCreateProgramWithSource - could be a file?

    If the opencl specification said that the parameter of clCreateProgramWithSource should be a file instead of string, all vendors should implement it. I think that use a file as a parameter will be...
  11. clCreateProgramWithSource - could be a file?

    Hi there,

    I was studying opencl until I see the clCreateProgramWithSource(). This function uses, as a parameter, a string which is the kernel source code to be built. But, is there any specific...
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