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Type: Posts; User: Letinono

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  1. clCreateUserEvent set reference count to 2

    Hi,

    I use the method clCreateUserEvent to build user event and I notice the refence count of the event is set to 2 just after the clCreateUserEvent call.

    Is it normal?

    I'm using the latest...
  2. [Nvidia Windows] Display driver crash when killing a process

    Hi,

    I have a problem with nvidia drivers.

    When I kill a process running OpenCL kernels, the driver crash and I have to reset the computer.

    Do you have any ideas find a solution to this...
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    Re: Possible Memory leak in nVidia driver

    I agree with you, and this is what I was told NVidia:



    So does it mean only nvidia correctly implements the standard?

    Thanks.
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    Re: Possible Memory leak in nVidia driver

    I think nVidia has choosen to implement each event usage without controlling if the event is allready allocated.

    So when you call clEnqueueReadBuffer( [..], &evt);

    I believe the driver...
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    Re: Possible Memory leak in nVidia driver

    Ok I think the problem is solved.

    Thanks.
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    Re: Possible Memory leak in nVidia driver

    Ok, I found a new thing. If I add a clReleaseEvent just after the clWaitForEvents. The memory leak no longer appears.



    err = clEnqueueNDRangeKernel(cq, zeKernel, 1, NULL, gws, lws, 0, NULL,...
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    Re: Possible Memory leak in nVidia driver

    I forgot to tell that if you replace the line:


    err = clEnqueueReadBuffer(cq, d_c, CL_FALSE, 0, NB_DATA*sizeof(float), c, 0, NULL, &evt);

    by the line


    err = clEnqueueReadBuffer(cq, d_c,...
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    Possible Memory leak in nVidia driver

    Hi,

    I think I found a memory leak in nvidia driver (tested on 310.90 windows X64) with OpenCL 1.1.

    The memory leak appears when you call the function clEnqueueReadBuffer with asynchronous...
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    Re: Issue with clRelease functions

    I found a solution but I still don't understand the problem.

    Here is the architecture:

    class A is a singleton and creates the context.
    class B is a singleton and have the member static A*...
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    Issue with clRelease functions

    Hi,

    I have an issue with clRelease functions (clReleaseContext, ...). I developped a C++ library to manage easily OpenCL functions and a test application to control its working.

    This...
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    Re: Image2D OpenCL & Snow Leopard

    On our mac osX 10.6.8 with GeForce 9400m, there is only CL_RGBA and CL_BGRA that supports CL_FLOAT.

    We will try later with 10.7.x.

    Thanks.
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    Re: Image2D OpenCL & Snow Leopard

    OpenCL implementation in osX snow loepard seems to not support our image format.

    Unfortunately no format supported can answer to our problem.

    That's a bad news :D

    Any idea for the first...
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    Re: Image2D OpenCL & Snow Leopard

    No I will try it.

    Thanks a lot.
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    Image2D OpenCL & Snow Leopard

    Hello,

    I have a problem with an OpenCL code that runs correctly on Windows XP and 7 on different graphic cards (GF 8400GS, GF 9500GT, GTX285, GTX 470, Quadro 4000).

    But with Snow Leopard on a...
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