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k. I believe this is the n1 item on the list and it will be fixed until the public release coming shortly. Hang in there!
Check: https://github.com/mostaphaRoudsari/Butterfly/issues/43
In the meantime, please let us know of the values you had to change manually in controlDict and fvSolution. Was that due to wrong values set from BF or was it because they weren't updated through BF?
Kind regards,
Theodore.…
e sideline on that comparison. But my interest is within the thermal investigations in big indoor spaces/semi-outdoor spaces as I am studying temperature distributions in atria. So it was regarding those kind of comparisons.
I sure hope I have time within my project to test out BF and hopefully compare to Ansys. I'd btw be using the k-w SST solver in Ansys. Which solvers are available in BF for indoor studies?
- Lasse…
I need only lenght of (a) side. Then from Acos(a/r) I have angle for vector. I think easy and it works.
Could you explain the ArrayOnX_EVENT please, or how I can get a intersect point from OnNurbsCurve.IntersectCurve method.
Thanks ;)…
Added by Lukáš Kurilla at 1:21pm on January 19, 2010
hreads where Thread I solves object A1 and Thread II solves object A2. As soon as A1 is completed, Thread I can move on to object B1 and as soon as A2 completes, Thread II can move on to object B3 (whichever comes first). When both A1 and A2 are complete, we can spawn a new thread (III) to take care of object B2.
If B2 completes before B3, then Thread III will terminate. If B3 completes before B2, then Thread II terminates. Whichever thread is last will pick up execution of object C3. And so on and so forth.
This sort of threading is actually not guaranteed to help much though, as it is likely that the bottleneck components in the network will still need to be handled by a single thread.
A more efficient solution would be to divvy up the execution per component to multiple threads. If you're trying to compute the Curve Closest Point for 10,000 points and your machine contains 4 cores, then we can assign 2,500 points to the first core, 2,500 points to the second core etc.
This approach will actually work when there's only a few bottleneck components and it also means the order in which components are solved is no longer important.
An even more fine-grained approach to threading would be to make the Curve Closest Point function in the Rhino SDK threaded. There's a lot of looping going on in any given Curve CP computation so the curve could be broken up into loose spans where each span is solved by a different core. Then the partial results get consolidated once all threads finish.
The benefit here is that it would be multi-core for everyone, not just Grasshopper components.
The bad news: Some functions in Rhino are not thread-safe. Meaning that data structures such as NurbsCurves cannot be modified from multiple threads at once as it will compromise their validity. You might well end up with invalid curves and quite possible weird crashes. In very bad cases it might even be that a specific function in our SDK can only be running once, so even if you were to duplicate the curve it would still not work.
Until our SDK is thread-safe there can be no global threading in Grasshopper. I don't know where we're headed with this, but I do know that we've started using some threaded algorithms in the display as of Rhino5, so it seems we're at least getting our feet wet.
--
David Rutten
david@mcneel.com
Seattle, WA…
Added by David Rutten at 5:47pm on November 17, 2010