[Mesa-dev] [Bug 103586] OpenCL/Clover: AMD Turks: corrupt output buffer (depending on dimension order?)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103586

--- Comment #16 from Jan Vesely <jan.vesely at rutgers.edu> ---
(In reply to Dave Gilbert from comment #15)
> Hi Jan,
>   Yes, doing:
> --- a/ocl.cpp
> +++ b/ocl.cpp
> @@ -65,6 +65,7 @@ static int got_dev(cl::Platform &plat,
> std::vector<cl::Device> &devices, cl::Dev
>      events.push_back(event);
>      cl::Event eventMap;
>      queue.enqueueBarrierWithWaitList(&events);
> +    event.wait();
>      mapped = (cl_uint*)queue.enqueueMapBuffer(output, CL_TRUE /* blocking
> */, CL_MAP_READ,
>                             0 /* offset */, 
>                             SIZE * SIZE * SIZE * sizeof(cl_uint) /* size */,
> 
> does seem to work.

thanks, that means the kernel work event works correctly.
I'll need to double check the specs wrt synchronization points. we either miss
a wait, or fail to update mapped buffers after kernel finishes execution.

> 
> Vedran: I've only got a Turks to play with; feel free to try my test on
> something else.

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