Once more.

> Gesendet: Dienstag, 03. Dezember 2013 um 07:12 Uhr
> Von: "Ulrich Pegelow" <ulrich.pege...@tongareva.de>
> An: darktable-devel@lists.sourceforge.net
> Betreff: Re: [darktable-devel] OpenCL Question
>
> This is a bug in NVIDIA's OpenCL compiler. I reported it to them a year 
> ago and they confirmed it's a bug. Seems that they did not fix it in the 
> 304.xx legacy series of their driver.
> 
> I guess there are only two chances for you to get OpenCL running. Either 
> you switch to a newer driver version and hope that the issue is fixed 
> there - series 325.xx and 331.xx are available for download. Or we try 
> to find a workaround(*) for the bug - which will be tedious work as you 
> need to test a lot and you don't have a guarantee to finally succeed.
> 
> Ulrich
> 
> (*) We even have a workaround in place from the times when the bug was 
> first detected. However, NVIDIA's driver turned to the worse and the 
> workaround stopped working.
> 
> Am 02.12.2013 20:26, schrieb David Vincent-Jones:
> > After installing the latest Nvidia drivers my machine appears to go a
> > long way towards fully implementing the compiles needed for OpenCL but
> > then fails trying to compile 'blendop.cl'.

I also made an update of the driver and if I remember correctly OpenCL stopped 
working.
At least on Debian the driver update did not update the OpenCL library or the 
helpers around.

I don't know what system your are using, but on Debian you can do:

#dpkg -l | grep opencl

and look for:
nvidia-opencl-icd
nvidia-opencl-common
nvidia-libopencl1


Christian

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