poppy Posted June 24, 2015 Share Posted June 24, 2015 Hi, I tried help card and forum, but seemed like the topic was lightly touched.- In H 14 we have new option, "Use OpenCL", in FLIP solver which, when on, disable preconditioner.- The preconditioner help card said disable for 4 sockets machine. This mean 4 cpus machine. But this card was old, like since H12. I'm running dual xeon with total 24 cores 48 threads. Does this rule still apply to 4 cpus only?- The openCL look like a faster solution than single threaded preconditioner. But it said for large viscous fluid.Now im confused. Is there any rules of thumb for this? Quote Link to comment Share on other sites More sharing options...
rolfcoppter Posted June 24, 2015 Share Posted June 24, 2015 Check out this link from the Houdini forums. there isn't an exact answer to what your asking but there is some information in there about using the pre conditioner. https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=31242&highlight=preconditioner Quote Link to comment Share on other sites More sharing options...
Guest tar Posted June 25, 2015 Share Posted June 25, 2015 (edited) As a side note; NUMA used to be quite bit obscure but seems to becoming more present as systems are using more RAM with 2+ cpus. It's been sited to affect hangs in Nuke: https://community.thefoundry.co.uk/discussion/post.aspx?f=189&t=108079&p=930807 Edited June 25, 2015 by tar Quote Link to comment Share on other sites More sharing options...
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