Jonathan Mack
jsmack
About Me
EXPERTISE
VFX Artist
INDUSTRY
Advertising / Motion Graphics | Design | Gamedev | VR
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LOCATION
United States
WEBSITE
Houdini Skills
Availability
Not Specified
Recent Forum Posts
XPU shader pre-compile issues Aug. 5, 2026, 4:40 p.m.
brians
Is it possible for anyone to give specific feedback on this?
eg
- is it slow only on Intel? (in which case it might be an e-cores issue. does disabling the e-cores in the bias make it multi-threaded again?) or is it slow on AMD too?
- is it slow only on Windows? Or does Linux also experience this issue?
I ran precompile on Windows 11 with the following configuration: Intel Core Ultra 7 265k (8P 12E), Nvidia RTX 5080 with 610.88 driver using Houdini 22.0.401
Total time taken was 4 hours 20 minutes 9 seconds. Average core usage was 20%. Usage was almost entirely P-cores and occasionally spiked to all P cores, but was only using 2~4 most of the time. Compiling completed successfully without error.
I don't think the threading is only the issue, it wouldn't be 100x faster if it were using all threads.
Nvidia and H22 Aug. 4, 2026, 3:38 p.m.
trillion dollar company