Empathy List Archives

DS

Dan Shriver

Sun, Oct 9, 2016 12:01 AM

What is recommended for improving OpenSCAD performance? One thing I heard
(perhaps I misheard it) was that multiple cores didn't help that much since
it was single threaded but maybe most OSes still allow singlethreaded
programs to get a boost from multiple cores.

What is recommended for improving OpenSCAD performance? One thing I heard (perhaps I misheard it) was that multiple cores didn't help that much since it was single threaded but maybe most OSes still allow singlethreaded programs to get a boost from multiple cores.

M

MichaelAtOz

Sun, Oct 9, 2016 1:04 AM

At most two threads, but the rendering is only done in one. ATM, future
desire to multithread...don't hold your breath tho.

So fastest CPU GHz, lots of memory (if you do complex designs), these days
I'd say 16G min, & a SSD (which you want regardless). Larger CPU L1/L2 cache
would probably help, but I'd guess it would be in the margins.

A better, not best, graphics card can help with viewing previews of complex
models, ie when dragging/moving the image around.

Avoid Intel graphics.

Admin - PM me if you need anything, or if I've done something stupid...

Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above.

The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out!

View this message in context: http://forum.openscad.org/OpenSCAD-machine-recommendations-tp18621p18623.html
Sent from the OpenSCAD mailing list archive at Nabble.com.

At most two threads, but the rendering is only done in one. ATM, future desire to multithread...don't hold your breath tho. So fastest CPU GHz, lots of memory (if you do complex designs), these days I'd say 16G min, & a SSD (which you want regardless). Larger CPU L1/L2 cache would probably help, but I'd guess it would be in the margins. A better, not best, graphics card can help with viewing previews of complex models, ie when dragging/moving the image around. Avoid Intel graphics. ----- Admin - PM me if you need anything, or if I've done something stupid... Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above. The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out! -- View this message in context: http://forum.openscad.org/OpenSCAD-machine-recommendations-tp18621p18623.html Sent from the OpenSCAD mailing list archive at Nabble.com.

B

Bananapeel

Sun, Oct 9, 2016 11:59 AM

MichaelAtOz wrote

So fastest CPU GHz

CPUs don't have the same number of instructions per hz (IPC - instructions
per clock cycle). So it's better to look at benchmarks. Look at results that
are from programs using a single thread. cpubenchmark.net gives each
processor a "single thread rating", this is what you are looking for.

Perhaps the best thing you can do to improve performance is recode the slow
parts of openscad. Of course, if it was easy, someone would have done it
already.

--
View this message in context: http://forum.openscad.org/OpenSCAD-machine-recommendations-tp18621p18626.html
Sent from the OpenSCAD mailing list archive at Nabble.com.

MichaelAtOz wrote > So fastest CPU GHz CPUs don't have the same number of instructions per hz (IPC - instructions per clock cycle). So it's better to look at benchmarks. Look at results that are from programs using a single thread. cpubenchmark.net gives each processor a "single thread rating", this is what you are looking for. Perhaps the best thing you can do to improve performance is recode the slow parts of openscad. Of course, if it was easy, someone would have done it already. -- View this message in context: http://forum.openscad.org/OpenSCAD-machine-recommendations-tp18621p18626.html Sent from the OpenSCAD mailing list archive at Nabble.com.

discuss@lists.openscad.org

OpenSCAD machine recommendations

The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out!