Why can't I make simulations anymore? Problem solved!
The picture linked at the bottom is nonsense, I know. It is only the first test of clothes that didn’t crash
DAZ-Studio 4.24 on my „new“ iMac (actually it is a late 2013 iMac I bought on
Ebay because of the inbuilt Nvidia graphics card).
Every other attempt to simulate a figure with dforce clothing shut down the application
immediately.
I have looked in the forums if someone else has the same problem. But it doesn’t seem
to be a known problem.
I have deleted Vers. 4.24 and changed to the old version 4.20.
At least there is the Save Menu accessible during the simulation (which was sometimes very helpful).
But a new simulation shut down another simulation with the old version of the program.
So I can’t find out what the incompatible components are; the system (Sonoma 14.7),
the application or the graphic-processor (Nvidia GeForce GTX750)?
As far as the picture is concerned: P3D Ursula G9, Fair Maiden Dress, Elysianna Hair
BM-6 Bird Props, Some parts of the Hobbit home by Roguey and some other props
Just to see if she model could be rendered. At least that worked well.
After 4 or five attempts to make a simulation with the dress, I used a somehow
strange and seemingly un-technical solution: I let it „sink in“ (in the brain of
a computer?) I didn’t start the simulation right after opening the file, instead I waited
for some minutes before I hit the simulation button - and it worked! 1 time!
Every other attempts with different models caused a crash of the application.
Now my question is: has anybody had the same problems or maybe someone
has found a way to get around it?
Thanks for reading!

Comments
I don't think it is clear to me.
Is it Daz Studio that is crashing when you try to simulate?
If you create a sphere and a plane with e.g. 50 divisions. Then raise the plane over the sphere and add a dForce modifier to it and simulate.
Will that work?
Thanks, felis! That is the fist thing I tried after some crashes. And that simulation worked well.
Some crashes later with the model you can see in the picture I have tried this:
>> I used a somehow strange and seemingly un-technical solution: I let it „sink in“ (in the brain of
a computer?) I didn’t start the simulation right after opening the file, instead I waited
for some minutes before I hit the simulation button - and it worked! 1 time!<<
Evry other try caused a crash of DAZ-Studio. 4.24 as well as 4.20.
But when DS crashes, does it then come with an error message that DS has crashed or what?
No, the crash-log said something about the Nvidia Processor (that I could not understand - all techno-blah) BUT:
It seems, I found the solution: let the CPU do the dForce-Simulation.
At least on my iMac with i7-Processor:
> go to the Simulation Pane > Advanced Tab > under „OpenCL Device“ choose:
Apple Intel Core i7-4771 CPU @ 3.5 GHz
The simulations run nearly 2 times faster than the ones with the Nvidia Graphics Card Processor
AND it doesn’t crash the Application every time!
I don’t remember if I could have chosen the CPU with my older Mac. But I guess it was an i5 CPU.
And that was not ready for such tasks.
Good you got it solved.