3dsmax freezes when setting Simulation Groups for Particle Physics

[tomoya kimpara]

I am using the latest version of TY. 1.011
I had the same problem with previous versions. 
I also had problems with simple scenes. After adding [Particle Physics] and setting [Simulation Groups], MAX freezes and sometimes the PC freezes. 
I tried to take a video, but the PC froze. The same problem occurred on another PC. 
If you set [Particle Groups] before setting [Simulation Groups] in [Particle Physics], there is no problem.
However, when I forget, it freezes and I am having trouble. 

Please help.

[tyFlow]

That's weird and I can't think of anything that would cause that. Are you able to load all of the official example files or do those freeze too?

Sounds GPU related...you could try disabling OpenCL acceleration of the bind solver and Particle Physics operator (settings to disable that are in the Particle Bind Solver rollout of a tyFlow object and also the settings of the Particle Physics operator). What GPU does your machine have?

[tomoya kimpara]

I tried disabling OpenCL acceleration and got the same freezing phenomenon.

As for the sample files, I was able to open most of the files that would have used Particle Physics.　I think this is because the Particle Groups operator is set correctly in the sample files.

CPU is AMD Threadripper 3770.
GPU is GeForce RTX3080.　The graphics driver is up to date.
Another person's PC is GeForce RTX2080Ti.
In total, I tested on 4 different PCs with different environments and they froze as well.

However, Tyflow 1.006 did not freeze.
So I thought it was not the PC environment.....
So it works fine in your environment?

[tyFlow]

Can you post one of the files in which the freezing occurs?

[tomoya kimpara]

I would like to post but can't because it freezes.
I would like to record the situation, but when I try to record in OBS I can't because my PC freezes.

Uninstalled 3dsmax once. I would like to try again after uninstalling 3dsmax and removing other plugins.

---

I uninstalled 3dsmax and all other plugins.
The only thing I have installed is Vray and Tyflow.

I did the same thing again and it froze as well.
Then I tried to reproduce the freezing phenomenon while recording with OBS to record the phenomenon again, and the PC froze as well.

After that, when I rebooted the PC, a blue screen appeared.
I cannot determine the cause.　If it was 1.006, it was fine.

---

My PC crashes, but the previous one was left as a recording file. What if I want to upload?

[tyFlow]

That's a pretty bizarre issue...the Particle Physics operator is one of the most commonly used operators, and you're the only one who has reported this problem....so it sounds hardware related (ie, something going on with your machine setup). That's what the blue screen would point to as well. There's not really anything in the tyFlow codebase that could cause a blue screen to occur, if things like GPU drivers are up to date.

Are you running Max in a VM? Or do you have any tools running on the machine that could be interfering with tyFlow as it runs (for ex: a really invasive anti-virus tool which could be interfering with tyFlow's DRM)?

Some things you can try:

1) If you're unable to save the file because Max freezes as soon as you create the operators which cause the freeze, first deactivate the tyFlow object before adding the operators (so nothing gets simulated). Then add them and save the file and upload it here. Then I can at least see the file itself.

2) Double check that all your GPU drivers are really up to date.

3) Create a file called c:\noOpenCL.tyf. It can be empty. If that file exists on your computer, tyFlow will not use OpenCL (GPU) acceleration in any capacity. Load max and see if it still freezes...if it doesn't, then at least you know the problem is GPU related.

4) If Max is frozen but the rest of your computer is still responsive, you can open the task manager and right click on the 3dsmax.exe process and select the option to generate a dump file. This file will be pretty huge (several gigabytes), but if you compress it and send it my way using something like WeTransfer, it should give me a clue as to where things are freezing.

5) Check to make sure OpenCL.dll is not present in your 3ds Max root directory. If it is, temporarily remove it and try again.

There haven't been any changes made to the way the Particle Physics operator works with groups in a long time, so I don't see how that could be related. And like I said...many, many people have been using that operator without issue even in the latest builds...so this problem seems very specific to how you have your machine configured somehow....

[tomoya kimpara]

My company's PCs are AMD, and all of them have the same phenomenon, so maybe it's PC compatibility? I am thinking that it might be the compatibility of PCs, but I don't have an Intel PC at hand and cannot verify it, so it might work normally with an Intel PC.

All GPU drivers are up to date.　I did a clean install just in case.　I am also concerned about driver around and interfering software, and have also verified virus software, firewalls, etc.
That didn't work either.

At any rate, I am wondering why it doesn't seem to be a hardware problem, as it is working fine with the previous version of Tyflow 1.006.

I'm sorry that openCL, dump files, etc. are not immediately available, but thank you for your response.
I will try to verify when I can.