[PD] OpenMP and Pd

Pedro Lopes pedro.lopes at ist.utl.pt
Fri May 21 01:21:24 CEST 2010


tryed both, still complains with the same error in pd output window. Seems
that some OpenMP + PD issue is missing me (I'm still learning...).

best regards,
Pedro

On Fri, May 21, 2010 at 12:16 AM, Pedro Lopes <pedro.lopes at ist.utl.pt>wrote:

> I can try, but it is weird because compiling a simple example of open mp on
> a .c file requires nothing else than -fopenmp flag.
>
> I'll give feedback in a second.
>
>
> On Thu, May 20, 2010 at 11:58 PM, Vasilis Liaskovitis <vliaskov at 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 at 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<http://www.eecs.berkeley.edu/%7Edemmel/cs267_Spr10/Lectures/Wessel_Final_ICMC2010.pdf>
>> >
>> > --
>> > Pedro Lopes
>> > contacto: jazz at radiozero.pt
>> > website: http://web.ist.utl.pt/Pedro.Lopes
>> >
>> > _______________________________________________
>> > Pd-list at iem.at mailing list
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>> >
>> >
>>
>
>
>
> --
> Pedro Lopes
> contacto: jazz at radiozero.pt
> website: http://web.ist.utl.pt/Pedro.Lopes
>



-- 
Pedro Lopes
contacto: jazz at radiozero.pt
website: http://web.ist.utl.pt/Pedro.Lopes
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