On Thu, May 20, 2010 at 11:58 PM, Vasilis Liaskovitis <vliaskov@gmail.com> wrote:

Hi,

I don't know if pd works with openmp.

For your undefined reference problem, you can try adding "-lgomp" to
your compilation/linking command line.
If that doesn't work, you may also have to point to the exact path of
libgomp.so on your system.

E.g. on my system I would add this:
-L/usr/lib/gcc/x86_64-linux-gnu/4.3 -lgomp

hope that helps,

- Vasilis

On Thu, May 20, 2010 at 4:46 PM, Pedro Lopes <pedro.lopes@ist.utl.pt> wrote:
> I was trying to include pragma comments of OpenMp in a PD external, but it
> does not seem to work for some reason. I tryed to look a bit on the web
> about Pd and parallel code but couldn't find any thing specific about OpenMP
> - does the current architecture of Pd allow parallelization with OpenMP
> directives?
>
> I included a simple directive, it compiled with -fopenmp with no error nor
> warnings but in creation time (inside PD):
>>undefined symbol: GOMP_parallel_start
>> dtw
>>... couldn't create
>
> I found this [1] and also some references to Miller's conference about the
> topic in Brasil but couldn't figure out exactly if OpenMP is allowed in pd
> external code.
>
> best regards,
> Pedro Lopes
>
> [1]
> http://www.eecs.berkeley.edu/~demmel/cs267_Spr10/Lectures/Wessel_Final_ICMC2010.pdf
>
> --
> Pedro Lopes
> contacto: jazz@radiozero.pt
> website: http://web.ist.utl.pt/Pedro.Lopes
>

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