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Multi Threaded Way Slower than Single Thread - Printable Version

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Multi Threaded Way Slower than Single Thread - rjanders0003 - 07-23-2025

G'Day Tyson

I was working on my laptop, just a simple boolean subtract - box minus box

I was testing what time step setting had on calculation completion time 

my laptop is Free License - I then went to my desktop to see how much faster the pro (licensed) version would be

To my surprise, my licensed version was WAY slower.  I then did test on my desktop by Deselecting multi-threading in the settings Rollout (see attached)

Single thread completes in 1.3 seconds - multi threaded completes in 181 seconds.

I have attached two images to show the whole thing.

Two boxes - 40x40x40 cm - 20x20x60 cm - smaller box is animated to move through larger box over time - Boolean subtract smaller box from bigger box - continuously.

Rob


RE: Multi Threaded Way Slower than Single Thread - tyFlow - 07-23-2025

Please post the Max file.


RE: Multi Threaded Way Slower than Single Thread - rjanders0003 - 07-23-2025

(07-23-2025, 02:52 AM)tyFlow Wrote: Please post the Max file.

attached


RE: Multi Threaded Way Slower than Single Thread - tyFlow - 07-23-2025

Thanks, definitely some kind of bug - I'll look further into it.


RE: Multi Threaded Way Slower than Single Thread - tyFlow - 07-25-2025

This issue should be resolved in the next build.


RE: Multi Threaded Way Slower than Single Thread - rjanders0003 - 07-25-2025

(07-25-2025, 03:26 PM)tyFlow Wrote: This issue should be resolved in the next build.

You truly are a genius !!

Best thing ever to happen to Max !

Rob