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Type: Posts; User: pelotoescogorciao

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  1. Replies
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    Sticky: 1. Also, the 2.0 spec is lacking a very important...

    1. Also, the 2.0 spec is lacking a very important feature we're demanding for ages... The existence of a flag to disable the GPU driver's watchdog.
    Currently, if a kernel takes more than 3-5 seconds...
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    Sticky: I don't like the SVM mechanism you proposed in...

    I don't like the SVM mechanism you proposed in the spec... because:

    1. The existence of clSVMAlloc() sounds like a bad idea. The whole point of shared virtual memory(SVM) should be to REUSE an...
  3. Please, add this important method: static bool...

    Please, add this important method:

    static bool cl::available();

    basically, you call LoadLibrary("OpenCL") or its multiplatform equivalent and see if fails or not...
    This is used to avoid the...
  4. Sticky: In the SPIR 1.2 spec ( section 1.2 Name mangling...

    In the SPIR 1.2 spec ( section 1.2 Name mangling and Apendix A SPIR name mangling ), you should auto-rename the static/inlined functions and variables to protect better the kernel's IP. For instance,...
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    Sticky: For me, the spec is ok but lacks these important...

    For me, the spec is ok but lacks these important features:

    1. A way to specify different-sized images in an image array. Critical for OpenCL-accelerated hybrid renderers ( like MentalRay,...
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    Re: Timeouts for GPU kernels

    We need a flag initializing the OpenCL context to indicate we want explicitly disable the watchdog without having to touch the Windows's registry / affecting the GPU drawing APIs.
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    SPIR kernel precompilation tool

    Now that the SPIR spec has been aproved I'm curious about the compiler tool...

    Is Khronos making the command-line "clc.exe" compiler? Or the IHVs?
    When will be available?

    I personally would...
  8. Array of images as kernel parameter

    I need to access an image array as kernel's parameter. Also, I need that the images could have different sizes too.

    Example:



    __kernel void MyKernel ( __read_only image2d_t img[1024] )
    {
    ...
  9. Re: Needed: information about kernel parameters

    Aka "kernel args reflection".
    Yep, we need this.
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    Re: MPI like support

    If you want to use OpenCL remotely just use... MPI or sockets.
    It's not good to mix a network API with a GPGPU one.

    You can use MOSIX VCL:
    http://www.mosix.org/txt_vcl.html
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    Re: Open Intermediate Language

    Once of the things the IHV learned is that DX-IL is not good. That's why they decided by consensum not to use a IL for OpenGL by very good reasons.

    In case you want to optimise the loading time of...
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    MSAA images

    Pls, add image fetch like DX11/OpenGL's MSAA textures. Something like this:

    image.Load ( x, y, sample, [mipmap] );

    will get the (x,y) texel for the sample# ( and, optionally, the mipmap level...
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    Re: Open Intermediate Language

    An intermediate language won't solve anything: it does not really protect the IP and it does neither optimize the loading/executing speed ( the IL program needs to be again recompiled and optimized...
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    Way to know if OpenCL is installed

    Hi,

    I got a problem. Imagine my app uses OpenCL but it requires to be compatible with old OSs and computers. The user might use an old driver without OpenCL suport.
    Currently, if I link my...
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    Built-in random function

    Pls, add a built-in rnd() function like C's one.
  16. Re: Mipmap with Trilinear interpolation

    I agree. Most of the modern GPUs support this. I don't see why the initial CL spec was so basic dealing with images. We need mipmapping, yep.
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    Re: Arrays of images

    Imagine a programmer wants to write a renderer with multiple materials. Each material could have a reference to a texture. Without arrays of images or without having the chance to use an image...
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    Arrays of images

    Pls, support arrays of images and let us to use image handlers in structs.
    Thanks.
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    Re: 3rd-party SDKs : a chaos

    Btw, the .lib could be just inlined in the .h, something like:



    void clInit ()
    {
    #ifdef WINDOWS
    // Find OpenCL ICDs in the registry
    OpenRegKey(....);
    //Load the ICD...
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    3rd-party SDKs : a chaos

    Hi,

    I'm tired. Really tired of seeing how the XXXXX's-vendor SDK is not compatible with YYYYY's-vendor implementation. For instance, if you compile a program with the ATI's SDK it won't run using...
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    Re: Describing kernel parameters

    Yes, pls, add some kind of "reflection" like DX does.
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    Re: Kernel's source code protection

    Well, that or force all the OpenCL implementors to have a tool like Intel's:

    http://img717.imageshack.us/img717/6673/ioc.png

    But add an option to pre-compile for ALL the devices supported by...
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    Re: Kernel's source code protection

    Btw, to precompile the kernels it's not good for me because we must deal with 60 different types of GPUs ( 30 NVIDIA models + 30 ATI models, etc... ).... and currently, precompiled kernels are a bit...
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    Support for cubemaps

    Any chance to get support for cube map images, pls?
    Of couorse I could fectch it manually but NVIDIA/ATI GPUs already support it plus advanced filtering....

    Thanks.
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    Kernel's source code protection

    Navigating by the Intel's OpenCL forums I found this:

    http://software.intel.com/en-us/forums/showthread.php?t=79833

    It's a thread talking about encrypting OpenCL kernel's source.

    I agree...
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