Running dForce sims still crashes the system display driver.

kyoto kid

...lately when I attempt to run a dFroce sim it tends to crash my system's display driver..  I have a dual display setup and when this happens one of the displays turns off.  To restore the driver and displays requires restarting the machine which takes time to reboot as it is older hardware. 

I am working in version 4.21.0.5 (the last version that runs on Windows 7) using Nvidia Game Ready driver 473,62, (the final driver that supports W7).  I have a Maxwell Titan-X with 12 GB of VRAM and 24 GB of memory so I should have enough resources to run the sim so I'm not sure why this is happening.  I'm also running the sim in texture shaded mode. so the VRAM  load on the GPU is minimal. 

I also shut down any other unrelated software (including Chrome set my AV to Silent Mode) whenever I work on a project so Daz and Windows are the only processes that are using system .resources. The only other programme I open sometimes is MSI Afterburner for vieing resource usage when rendering large scenes.

ETA:

I also have the dForce Companion plugin but it doesn't show up under the Window tab in this version (It  does show up in the 4.20 Beta) so I only have the base Simulation settings which makes me wonder if it is also trying to sim the character's hair and other items I have turned off (dForce companion allows one to select just a single item in the scene to run the sim on). The product page mentions 4.21 as being "Compatible Software" so not sure what is going on here.

ETA 2:

Here is thean excrept of he logfile from when the crash occurred:

2023-09-07 23:01:00.157 [INFO] :: Spring(57082, 57746) of node "Fiona Dress G8" extended: rest length < collsion offset (0.150519 < 0.20001)
2023-09-07 23:01:00.160 [INFO] :: Shortest spring had length: 0.0391986
2023-09-07 23:03:15.835 [WARNING] :: ..\..\..\src\dzopenclkernelfactory.cpp(32): Open CL notify: CL_MEM_OBJECT_ALLOCATION_FAILURE error executing CL_COMMAND_NDRANGE_KERNEL on NVIDIA GeForce GTX TITAN X (Device 0).

crosswind

It seems relating to the VRAM allocation issue, but you may first try :

- better use Studio driver rather than Game Ready.
- I also use dForce Companion but there's no problem with GR/PB version. Pls check if the plugin could be seen and enabled from Help - About Installed Plugins > ManFriday's dForce Companion. Check it and restart DS
- even if without Companion, you don't have to turn off other dForce items... just Ctrl Select your figure and the wearable that you wanna simulate. In Simulation Settings pane > Menu in the upper right corner (hamburger menu) > Simulate Selected.

So firstly just simulate one piece of wearable, for instance, this Fiona Dress G8, see if there's still a crash...

kyoto kid

...unfortunately as I mentioned I am on Windows 7 and Studio drivers don't support older versions of Windows, just 10 and 11..

I tried running the sim in 4.20 using dForce Companion and it still crashed after about 2 minutes.  This has only been happening recently as i've been able to run sims on clothing and hair beforehand without incident 

PerttiA

@kyoto kid, as you have only 24GB's of RAM, you could try rebuilding your virtual memory, make sure it is (large enough) fixed size and not fragmented 

kyoto kid

...doesn't dForce take advantage of GPU VRAM though?  I can't believe that a sim of a simple dress would take the full 12 GB of GPU memory let alone 24 GB of system memory.  Again I've done sims before without this happening. (including Primavera Hair which is fairly complex in comparison). 

I did check the paging file size and it never reset when I upgraded the memory so manually I reset it.

Wondering if I should dig out the old 4 GB GTX 750Ti to run the displays and dedicate the Titan-X to just rendering and sims.