[opencl_init] device 0 `GeForce GT 240' doesn't have sm_20 support.
that means we can't do atomic float adds in global memory which makes the
splat kernel fall back to some workaround code which can be terribly slow.
-jo
On Tue, Apr 16, 2013 at 11:58 AM, Dariusz Duma
<[email protected]>wrote:
> Hi,
>
> Since 0.xx version (1.2 now) I've problems with DT and OpenCL activated.
> Everything runs smoothly on CPU (changing parameteres in modules,
> preview and so on), and after I turn on OpenCL I can't smoothly operate
> with sliders (changing params), preview is freezing for some seconds.
> Saying straight - DT slows down. Investigate with '-d perf -d opencl'
> shows, that there's something wrong with the 'splat' function/module
> (??). Each plugin/function does job in few ms, except 'splat', which
> tooks ~ 1.2 second - no matter what I set in preferences (bilinear,
> ppg, dither, etc.).
>
> In log you can see what I'm talking about - the same plugins, the same
> photo, first section WITHOUT OpenCL, second WITH OpenCL.
>
> I've no idea, what cause this...
>
> The problem remains the same, with different kernels, different NVIDIA
> drivers (I've 313.30 just now).
>
> --
> Dariusz
>
>
>
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