HELP! RT/GPU Crashing after Update to 3.x

[Alan Iglesias]

Heya Folks,

I just installed 3.x over 2.x - Max 2014...

License server seems to running fine. Production renderer is working fine.

BUT...RT/GPU will crash every time I run it. I am running two GTX580s and have not changed the drivers. All worked fine before. RT/CPU seems to be OK.

It's hard to see, but the error in the command line seems to say: CUDA error 400 : A resource handle passed to the API call was not valid.

Tried rebooting, clean Max reset, etc., etc...

Any ideas?

Also, does the license server run automatically now or something? When I re-boot the machine and try to run it (as I normally do) it returns an error saying another instance is already running. Seems weird.

Gotta get to work so I hope someone can help. I have emailed Chaos Group support but nothing yet so Vlado if you are around I'd really appreciate it...

Thanks,

-Alan

[vlado]

So which driver version do you have installed now?

Best regards,
Vlado

[Alan Iglesias]

Hmmm...looks like 290.36

Thanks Vlado!

-Alan

[Alan Iglesias]

Oops! Better make that 311.06 - I just checked and the registered version did mot match my last install file. I must have done it on-line...

Thanks,

-Alan

[vlado]

Can you try version 344?

Best regards,
Vlado

[vlado]

Also, is that on any scene?

Best regards,
Vlado

[Alan Iglesias]

Also, is that on any scene?

Best regards,
Vlado

Yes, I've tried a few scenes...simple and complex. I'll try the new driver...

Thanks!

-Alan

[Alan Iglesias]

Well, RT/GPU is now working with the 344.11 drivers. But rendering seems quite sluggish. Using Vray 2.x and the older drivers with the same two 580s, I used to do the benchmark in 1:29. Now it has slowed down to 1:43.7. Pretty disappointing especially considering I was hoping for a bit of GPU speed-up in v3 (which I thought I did notice during the v3 beta using the older drivers).

Any thoughts as to what might wrong? Why was I able to run the V3 beta with the older drivers but cannot now?

I'll keep testing...

Also, apparently the new License Server installs as a Service, Correct? Does it have to be installed as a service? I kinda liked it as something I could keep track of visually in the tray...

Thanks,

-Alan

[vlado]

Well, remember how adding more features makes the GPU code slower? You can see it here first hand. With that said, there are some speed improvements in the nightly builds; I can get you a build for testing if you like.

The license server would install as a service only if you set that option during the install. You can certainly remove the service and run it manually.

Best regards,
Vlado

[Alan Iglesias]

Yes...I do remember...and sure, it all makes sense. If you could give me access to the nightly builds (if that is what you are referring to) it would be great and I don't why I haven't asked until now - just busy I guess - but yeah, I'd love to do some testing for GPU speed.

And also, we have Light Cache in RT now so that's bound to help out speed-wise....

Hmmm...I guess the installer was set up to install the License Server as a Service. I'll re-install and change that...

Thanks for everything Vlado!

-Alan