Multi-GPU keeps crashing
AnonTurtle
Posts: 31
While it has worked flawlessly before it no longer works reliably. I run multiple GPUs and when I do iRay preview, Spot Render, or Render it will render with CPU or crash DAZ. Sometimes I can get it to work by Advanced and turning off all the GPUs and OptiX and turning it all back on again.
I have even reinstalled my OS wondering if it was a driver issue but it was not. My graphics cards and system is plenty powerful enough to handle the scenes I am doing. It even crashes when there is nothing on the scene. For example: I start up DAZ and the iRay Preview is on from the previous run and Daz will immediately crash when it tries to preview render with multiple GPUs.
Would like some help thank you!
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Comments
Which driver(s) have you tried?
Latest and 11/2/2019 driver
What is that as a version number - xxx.xx?
My guess the OP is using the 441.12 driver, on that part Nvidia have just released the 441.20 driver..
I'll toss mine in here too in case loads of people are having issues and not saying anything. This has just started happening to me too. I hardly EVER had DAZ Studio crash on me, but suddenly it is nine out of ten attempts to run it. I did just get a new computer and so everything is fresh. I was having AMAZING results, then BLAMMO!
Alienware R8 DeskTop:
Processor: Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz 3.60 GHz
Installed RAM: 64.0 GB
2 TB SSD C Drive, Seagate 6TB D drive
RTX 2080Ti 11 GB - Dual GPU, non-SLI
RTX 2060 6 GB
Nvidia Driver version: 441.20 (It did this before updating from 441.12 to 441.20 as well)
Driver Type: DCH
Windows 10 Pro Version 1903
Installed 10/25/2019
OS Build: 18362.356
DAZ Studio 4.12.1.16 Pro BETA 64 Bit fresh install
I'm hoping this doesn't turn into a laborious de-install/reinstall ordeal.
Sooo.... for what it is worth... Since my last post I changed my render settings under Advanced and have the RTX 2080 Ti for "Photoreal Devices:" and the RTX 2060 for "Interactive Devices" (Windows operations, DAZ Studio, Photoshop, Browser windows) and now have been able to render all the scenes that yesterday where crashing upon merely opening them up. Exact same scenes. And they are staying in GPU mode now and rendering quickly, whereas previously if they didn't crash right away they reverted to CPU mode.
Interesting....
And for the record, this is one of the images, using G3M and the clothing, a red and a blue lightsaber for light along with a single ghost light. Pretty simple stuff.
it might help if you post your log right after you crash:
help->troubleshooting->view log file
I'm getting multiple gpus soon so I hope I won't get problems.
Fyi the "Interactive Devices" list is for selecting what CPU/GPU combination gets used for rendering when using Iray's not-photoreal Interactive rendering mode (activated via setting Render Settings pane > Editor tab > Render Mode to "Interactive".) It has no bearing on which GPUs get used for particular tasks anywhere else on your system. The reason why your multi-GPU problems seem to have gone away because of only selecting the 2nd 2080Ti in the "Interactive Devices" list is because of having deactivated it (losing 50% of your rendering performance in the process) in the "Photoreal Devices" list.
Can you post the contents of your log file (Help menu > Troubleshooting > View Log File) after attempting to Render with both 2080Ti's selected under the "Photoreal Devices" list? That should give major hints as to what is actually going wrong. The portion to look at in particular is all the log lines following this one:
UPDATE: Mine has been pretty stable, but that first night or two after updating to a new computer and installing DAZ fresh it was pretty bad, but now seems to have stabilized. I ran in one-GPU mode for a week and then switched back to dual and it has been great. I'll try to post something from my logs if it starts acting up again. Thanks to everyone who offereed advice and tips!!!
I have dual GTX1080 and dual 4K monitors. I had been having lots of Iray related crashes. Finally discovered my problem (I hope)....under Render Settings | Advanced I have both cards selected/enabled for Photoreal Devices and had both cards selected for Interactive Devices. Once I changed the Interactive Devices to use only one card the crashes stopped! My Render Mode is set to Photoreal. My Draw Mode is set to Interactive.
Is this the best way to set this up or am I missing something? Thanks.
BTW, my system definetly does not like Draw Mode set to Interactive and both video cards enabled for Interactive Devices. When Draw Mode is set to Photoreal no problem with the dual cards enabled under Photoreal Devices. I guess that leaves me with the choice of Draw Mode - Photoreal - dual cards or Draw Mode - Interactive - single card.
Note: After testing loading a large Iray scene, setting Draw Mode to Photoreal with dual video cards enabled is considerably faster than Interactive mode with a single card. Makes sense! (FYI - I loaded the full scene/set of "The Old Pump Room" and it took 2-minutes for the scene to fully load and display Iray in the Viewport using Photoreal Draw Mode & 2-cards, compared to 3-1/2 minutes for Interactive Draw Mode & 1-card.)