Threadripper 7995WX 96-Cores

V-Ray V-Ray for 3ds Max V-Ray for 3ds Max :: Issues
1

Windows 11
3dsmax 2016
Vray 3.60.04

Threadripper 7995WX 96-Cores

My first test render has 64 render buckets. Does this sound right? I’m not sure if hardware/Windows is limiting cpu access or it’s something on vray’s side of things
Anyone else run into this?

2

I have a Threadripper 3990x (64 Cores/128 Threads) and it shows 128 Renderbuckets.
So in your case you should see 192 Buckets.

3

It is a combination of both. Windows has some specifics about supporting more than 64 cores so it needs explicit software support. We added it in V-Ray 3.4.
Later on Windows 11 changed a bit the way more than 64 cores are handled and it required software updates again. This was added in V-Ray 5.2

Best regards,
Yavor

4

Thanks for the response @yavor.rubenov -- does this mean if we installed Windows 10 we could fully utilize the cores with V-Ray 3.6?

5

Overall V-Ray 3.6 is quite old so I can’t really say what would happen - try at your own risk..

6

Good news, IT was able to modify Windows 11 to take full advantage of the cores with Vray 3.6

Here’s what we did if others stumble on this --

I edited the registry and added the DWORD SplitLargeNodes to Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\NUMA and set it to 1

The VRSpawner.log (%temp% folder) initially was showing one processor group in the ‘group aware processor detection’ -- once the above change was made, three groups were detected and all cores were utilized for rendering

7

Kudos to your ITs. I didn’t know there was an option for that..