Re: [Gimp-developer] multithreading and GEGL

[Partha Bagchi <partha1b gmail com>]

On Fri, Feb 1, 2013 at 8:46 PM, Victor Oliveira <victormatheus gmail com> wrote:

On Fri, Feb 1, 2013 at 11:10 PM, Partha Bagchi <partha1b gmail com> wrote:
> Hi Victor,
>
> I think on Windows for 32-bit you are OK with call OpenCL.dll, but I think
> you need to call OpenCL64.dll for 64-bit?
>

I have a 64-bit Windows system and it comes with OpenCL.dll.

OK, I could be wrong, but I have an nvidia card on my windows machine and seem to remember seeing opencl64.dll. I don't have it handy this weekend, but I will check when I am back on that machine. 

> For Mac, according to
> http://developer.apple.com/library/mac/documentation/Performance/Conceptual/OpenCL_MacProgGuide/OpenCL_MacProgGuide.pdf
>
> the sample code on page 17, says:
>
> // This include pulls in everything you need to develop with OpenCL on OS X
> v10.7.
> #include <OpenCL/opencl.h>
>
> To compile from the command line, I think you need to do have -framework
> OpenCL during compilation.
>
> For instance,
>
> gcc -framework OpenCL filein.c -o filein
>
> Can we test this out?
>

The problem is, I don't have a machine with MacOS :/

I do. :) Happy to test out any code you want me to.

 

> Thanks,
> Partha
>
>
> On Fri, Feb 1, 2013 at 7:30 PM, Victor Oliveira <victormatheus gmail com>
> wrote:
>>
>> Hello Partha.
>>
>> I'm sorry, I mean "--enable-debug" instead of "--enable-config".
>>
>> That's a good observation. In Windows I look for "OpenCL.dll" and in
>> Linux I look for "libOpenCL.so", but I'm not sure how I should handle
>> it in MacOS. I was assuming it was the same as the Linux way. Do you
>> know how I should do this?
>>
>> Victor
>>
>> On Fri, Feb 1, 2013 at 8:10 PM, Partha Bagchi <partha1b gmail com> wrote:
>> > Victor,
>> >
>> > When I look at the code, I don't understand how you are handling the Mac
>> > OS,
>> > when you don't typically see so libraries, by dylibs. Can you elaborate?
>> >
>> > Also, when I try to add --enable-config to configure, I get
>> > configure: WARNING: unrecognized options: --enable-config
>> >
>> > Thanks,
>> > Partha
>> >
>> >
>> >
>> >
>> > On Tue, Jan 29, 2013 at 12:32 PM, Victor Oliveira
>> > <victormatheus gmail com>
>> > wrote:
>> >>
>> >> yes,
>> >>
>> >> export GEGL_ENABLE_OPENCL=yes
>> >>
>> >> also, when you build GEGL, put the option --enable-config.
>> >> with that you can set:
>> >>
>> >> export GEGL_DEBUG=opencl
>> >>
>> >> so you can see if OpenCL is really being used or if there is some bug.
>> >>
>> >> Victor
>> >>
>> >> On Tue, Jan 29, 2013 at 11:31 AM, Paka <ptilopteri gmail com> wrote:
>> >> > * Victor Oliveira <victormatheus gmail com> [01-29-13 07:39]:
>> >> >> You can use OpenCL in the CPU, just install the AMD OpenCL SDK. GEGL
>> >> >> looks for libOpenCL.so in /usr/lib.
>> >> >>
>> >> >> You should use GEGL_ENABLE_OPENCL=yes
>> >> >
>> >> > export as environment varible or ??
>> >> >
>> >> > tks,
>> >> > --
>> >> > (paka)Patrick Shanahan       Plainfield, Indiana, USA      HOG #
>> >> > US1244711
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