[PD] Using dual processor to manage 2 Pd at the same time

João de Brito Vidigal jbvidigal at gmail.com
Wed Aug 18 16:34:08 CEST 2010


Since I'm doing this to ease multiple video processing (up to 18 short
videos), do you think it's ok to open several different net ports? or will
it then get stuck with that!?

2010/8/17 Mario Mora <maredmo at gmail.com>

> Hi Joao
>
> You can achieve that by starting one instance of pd in the usual way (for
> audio process by example) and the other one using the terminal app , writing
> there the adress to the app and starting it with the ./Pd-extended  command
> by example....it is recommended that you start the pd instace for video
> (gem) with -noaudio flag or, alternatively desctivating the audio in the
> menu of the app.
>
> I have used that approach with success for audio and video processing in
> real-time like this:
> http://www.vimeo.com/12532169
>
> hope it helps
>
> bests
>
> Mario
>
>
> 2010/8/17 João de Brito Rocha Reis Vidigal <jbvidigal at gmail.com>
>
>> I'm using OSX
>> I want to sync 2 PD's (not 2 PD patches). One to control sound the other
>> to control video (GEM).
>>
>> "(your OS can tell you in which CPU a process is running, there are
>> several cmd tools in linux for that)"
>> can OSX do it as well?
>>
>> On 17 Aug 2010, at 16:15, Pedro Lopes wrote:
>>
>> Can you clarify this a bit further?
>>
>> What are the two things you want to sync? (Arduino and pd? No need for OSC
>> for that...but very do-able)
>>
>> (your OS can tell you in which CPU a process is running, there are several
>> cmd tools in linux for that)
>>
>>
>> Best regards,
>> Pedro
>>
>> 2010/8/17 João de Brito Rocha Reis Vidigal <jbvidigal at gmail.com>
>>
>>> Any idea on how to get the first Pd working with one  processor and the
>>> second with the other?
>>>
>>> I'm using the Arduino firmata to trigger both sound and video. I think I
>>> can't open twice the same port! So how can I use the OSC then to sync the
>>> triggering!?
>>>
>>>
>>> On 17 Aug 2010, at 16:05, Mathieu Bouchard wrote:
>>>
>>> On Tue, 17 Aug 2010, Pierre Massat wrote:
>>>
>>> > Does this mean that in Linux and on a dual core machine one instance of
>>> Pd only uses one processor?
>>>
>>> No, it doesn't mean that.
>>>
>>> But all the messages and signals circulate in a since thread (on a single
>>> cpu) unless you use special tools to split it into several threads.
>>>
>>> Then there is the "client process", which "own" the patch windows and the
>>> main window. This runs separately.
>>>
>>> Also, [soundfiler], some GEM input/output classes, and much of PDP, can
>>> run in an alternate thread.
>>>
>>> > Is there a way to know which processor it uses, and whether it always
>>> uses the same processor?
>>>
>>> No idea... I still run a single-core all day long.
>>>
>>> _ _ __ ___ _____ ________ _____________ _____________________ ...
>>> | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801
>>>
>>>
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>>
>>
>>
>> --
>> Pedro Lopes (ongoing MSc)
>> contact: pedro.lopes at ist.utl.pt
>> website: http://web.ist.utl.pt/Pedro.Lopes
>>
>>
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>>
>
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