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  1. Thanks OferRosenberg!

    Thanks OferRosenberg!
  2. Replies
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    Thanks for the reply cartographer and kunze. I...

    Thanks for the reply cartographer and kunze.
    I can not write sumaa and sumbb outside the loop.
    sumaa is summation of squares of intensity of each element of range block .
    sumaa = r1^2 + r2^2+...
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    Need feedback on OpenCL optimization

    Hello Everyone,

    I've written a OpenCL code for a function for fractal encoding (fixed partitioning). I get same encoding results with C only code and OpenCL based Code (Intel Core i5-3210M 2.5GHz...
  4. Thanks cartographer! But it is also not working...

    Thanks cartographer! But it is also not working in my code.
  5. Relation between cuda cores and compute units

    Hello Everyone ! I do have a integrated GPU of intel which is having 4 cores and when I execute device query it shows that it is having 16 compute units. But for Nvidia's GPU GeForce GTX 260 device...
  6. Use of variables in kernel function using OpenCL

    Hello Everyone !
    My code is as follows.
    ******* host code******

    //some declarations
    cl_mem Curr_domain = NULL;
    cl_mem dMobj = NULL;

    //created check, AvgBlk of type structure domainBlock
  7. Used CL_MEM_USE_HOST_PTR in my program but don't...

    Used CL_MEM_USE_HOST_PTR in my program but don't know why earlier the CL_MEM_USE_HOST_PTR was taking long time but now it takes me around 5-10ms.
  8. Kunze, The performance figures I provided are...

    Kunze,

    The performance figures I provided are for number of iterations. I've should have pasted the code in proper flow. The code under creation of buffers is executed once. The code for...
  9. Thanks Kunze. Yes these performance figures are...

    Thanks Kunze. Yes these performance figures are averaged values. I've tried the CL_MEM_USE_HOST_PTR option but it is not giving significant results time required is nearly same. What can be other...
  10. How can I reduce time for creation of buffers in OpenCL ?

    Hello everyone,

    I'm working on a program for reduce the time taken for fractal image compression using OpenCL. With OpenCL I get 3-4x time compared to non OpenCL program. To explain about my...
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    Hardware supporting openCl 2.0?

    Hello Everyone !
    Is there any hardware supporting openCL 2.0? If yes then please tell me company of the hardware,name of the product and if possible specification of that hardware. Thanks in Advance.
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    Re:

    Thanks Dithermaster!
    Actually I want to send following data to device.

    double **domimage[4];

    for (i=0; i<2; ++i)
    for (j=0; j<2; ++j)
    for (k=i; k<hsize-i; k += 2)
    for (l=j;...
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    Sending 2D data to device in openCL

    Hello everyone !!

    Can I send 2 dimensional data to device? If yes then how can I do that? Means how will be the declaration of the buffer memory? And also how can I fetch/ use these values in...
  14. Can we use structure of structure in opencl?

    Hello everyone !! I'm using structure as follows.
    struct domain_data
    {
    int *no_h_domains,
    *no_v_domains,
    *domain_hsize,
    *domain_vsize,
    *domain_hstep, ...
  15. Thank you very much Peccable !

    Thank you very much Peccable !
  16. Thanks Dithermaster! But I call a (non...

    Thanks Dithermaster! But I call a (non kernel)function in the kernel function? ie can we write non kernel function in .cl file ??
  17. Calling another (non kernel) function in kernel function

    Hello everyone !
    Can I call a (non kernel)function in the kernel function? Its giving so many errors. Also can we call non kernel function recursively in a kernel function or in .cl file?? If yes...
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