On Apr 09, 2013, at 01:46 PM, Joshua Stults <joshua.stu...@gmail.com> wrote:
I am trying to speed up export of a region to stl format, and I noticed in g-stl.c that there is a hard-coded ncpu=1 [1]. Does changing this to 2 or 4 speed up the stl conversion (if there are 2 or 4 cores available)?
If all it took to speed it up was changing that to a bigger number, we would have done that.. ;)
It looks like there is a command line option to set ncpu [2], but lower down in the code it is hard-coded to 1 [3].
Depending on your use case, one faster way to obtain an STL conversion is via the bot_dump command in mged. That will export a mesh without first validating that it's solid. Of course, you still need to convert to a BoT mesh first via the facetize command, and I suspect that's more likely where you're currently spending the majority of your time.
Another option would be to perform the conversion in parallel at a scripting level, running multiple g-stl at the same time (on different objects).
Cheers!
Sean
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