[Sidefx-houdini-list] VEX SOP threading

Simon Kapeniak szymon.kapeniak at gmail.com
Thu Jul 17 04:38:49 EDT 2008


I can confirm that operations on point clouds make troubles for threading
(what is apparently mentioned in Help). Besides those cases VEX works for me
fine in MT mode.

2008/7/17 Simon Barrick <simon at primalpictures.com>:

> I've seen problems using point clouds but not other things, why not just
> try and see? If the result is the same as one thread then you're good to
> go.
>
> -----Original Message-----
> From: sidefx-houdini-list-bounces at sidefx.com
> [mailto:sidefx-houdini-list-bounces at sidefx.com] On Behalf Of Peter
> Bowmar
> Sent: 17 July 2008 05:04
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] VEX SOP threading
>
> Hey Alex,
>
> I've seen trouble with VEX SOP Threading as recently as 9.1 (incorrect
> results) so I'd urge caution on that...
>
> Cheers,
>
> Peter B
>
> 2008/7/16 P. Alex Lim <list at poh-yee.com>:
> > Hi everyone.
> >
> > Is the threading in VEX SOP pretty safe to use these days? I have a
> > large set of data where without threading took about 490-550ms to
> > process. After I changed the option to "1 per processor" or "4
> > threads", the processing time dropped to ~250ms. Pretty cool.
> >
> > Anyways, had to ask because I seemed to still had it in mind from long
>
> > long time ago to not change this or I'd be asking for trouble...
> >
> > Much thanks!
> > Alex
> >
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