Thank you Richard,
I did a couple of trials with (mp) Queues, and with a (mp) manager.
In both cases, the channel is indeed available to the child processes,
but they just cant communicate.
I added two examples of this in the page
http://www.internike.com/mp_stackless.html
Sounds logical to me, as the channel needs a little extra logic to
differentiate between pids ("who just received something on a pending
receive() ? me, or another process ?"), which is not a problem for threads.
I'll improve, comment & let you know, after checking if there is really
nothing that can be done to make it faster.
Right now, on my machine, I have around 2ms across pids, compared to
around 2µs for a real stackless channel on a single pid.
Slow, but hey, getting around the GIL ;-)
Cheers,
Nike
On 03/27/2012 11:19 PM, Richard Tew wrote:
I took a skim through this morning before I left the house, and I
think it generally looked fine.
Channels already work across threads, is there a reason they don't
work as is in a suitable manner? If not, perhaps we ought to consider
making them do so in Stackless itself?
I'll take a closer look at the code later on when I have a more usable
device than an iPad at my hands. Just as well gmail saves drafts as
safari just crashed again..
Once you're happy with it, if you want to commit a version to the
Stackless examples project let me know.
Cheers,
Richard.
On Wednesday, March 28, 2012, <[email protected]
<mailto:[email protected]>> wrote:
> Hey there,
>
> I have started playing with the multiprocessing package together
with stackless.
> I came up with this POC implementation of the channels, working
across processes.
>
> If any of you stackless gurus could take a quick look there:
>
> http://www.internike.com/mp_stackless.html
>
> and let me know if you see any serious flaw with the basic concept,
before I get too excited about it,
> I'd be infinitely grateful ;-)
>
>
> Nike
>
> _______________________________________________
> Stackless mailing list
> [email protected] <mailto:[email protected]>
> http://www.stackless.com/mailman/listinfo/stackless
>
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