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Type: Posts; User: leoamuro

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    Here's some of my understanding about these...

    Here's some of my understanding about these concept. I'm also new to OpenCL and not familiar with nVIDIA GPU, so anybody please correct me if I am wrong.
    1. every work item executes your kernel....
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    yes, I forgot to mention that. Thanks.

    yes, I forgot to mention that. Thanks.
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    As kunze pointed out, when using integrated GPU...

    As kunze pointed out, when using integrated GPU design, which is my case, the vendor's optimization guide may ask you to use CL_MEM_USE_HOST_PTR instead of CL_MEM_COPY_HOST_PTR .
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    Thank you, utnapishtim Good to confirm all that....

    Thank you, utnapishtim
    Good to confirm all that. I think I have a better understanding about the usage of memory buffer now.
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    Confused about the memory buffer usage

    Hi,
    I'm wondering how to use the memory buffer in the most efficient and correct way. Although I've been reading the specification and searching some old threads for information in the forum, I'm...
  6. Hi, kunze Sorry that I forgot to update this...

    Hi, kunze
    Sorry that I forgot to update this thread. I finally solved this problem by updating the GPU's driver on the 64-bit machine. I guess that's why the performance was so bad. Still, Thank you...
  7. Bad performance after transferring from 32 bit to 64 bit

    Hi,
    I'm working on both my computers, one of which has a 32-bit Win 7 OS and the other one has a 64-bit Win 7 OS. Both machines have the Intel HD Graphics 4000 GPU inside.
    My kernel works fine with...
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    Yes, jprice, it worked. Thank you so much!!! I...

    Yes, jprice, it worked. Thank you so much!!!
    I think I misunderstood what you meant in my last post. Really glad that now the issue is clarified. Your explanation is very easy to understand, even to...
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    A weird problem of "CL_OUT_OF_RESOURCES"

    Hi,

    I'm developing an OpenCL program on my Intel HD Graphics 4000 GPU and I have met a really weird problem.

    I have several arrays defined as:

    unsigned short *a = new unsigned short[SIZE];...
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    Hi, jprice. Thank you for your reply. I did what...

    Hi, jprice. Thank you for your reply. I did what you said and it worked. (What a stupid mistake :doh:) Thanks again.
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    How to pass an array to the kernel

    Hi, I'm new to OpenCL and I'm trying to process an array with my GPU.
    So, I wrote a simple program to do some tests.

    First, I defined an array in the host program as

    int *a = new int[81];

    ...
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