Hi, On Tuesday 04 August 2009 11:45:49 NARCISO, Rui wrote: > I have a quad-core linux machine and I would like to take advantage of all > these extra cores to perform multiple heavy tasks simultaneously. > If i understood it correctly, the GIL will prevent me from multi-threading > this heavy tasks in order to make them run in parallel. > My question is then, how to do this? Will QProcess be the solution? (the > heavy tasks can either be ran by direct python acess through a run() > function or in stand-alone when launched from the command line)
There are at least two solutions:
1) If the work-threads need to use python, run them as independant processes
(via QProcess or process-module). Communication can then go via std-io, named
pipes, sockets or if you don't want to invent everything from scratch, via
dbus or similar protocols.
2) If the heavy work heavy enough to allow writing it in C++, create all the
work-stuff as C++ classes and use them in python via SIP. That way the real
running of the C++-code should unlock the GIL.
> The information in this e-mail is confidential. The contents may not be
> disclosed or used by anyone other then the addressee. Access to this e-mail
> by anyone else is unauthorised. If you are not the intended recipient,
> please notify Airbus immediately and delete this e-mail. Airbus cannot
> accept any responsibility for the accuracy or completeness of this e-mail
> as it has been sent over public networks. If you have any concerns over the
> content of this message or its Accuracy or Integrity, please contact Airbus
> immediately. All outgoing e-mails from Airbus are checked using regularly
> updated virus scanning software but you should take whatever measures you
> deem to be appropriate to ensure that this message and any attachments are
> virus free.
I know some companies lawyers think these disclaimers are actually useful and
needed. But could you separate them with a signature-mark ("-- " in one line)?
That way people answering wouldn't have to delete that part by hand.
Have fun,
Arnold
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ PyQt mailing list [email protected] http://www.riverbankcomputing.com/mailman/listinfo/pyqt
