Hanging buckets in RTX with single or dual rtx3090

[anthony_kyriazis]

Hello,

this has been realy realy frustrating. I have a scene which can render fine with buckets with the following settings
min subdivs 1
max subdivs 24
noise 0.02

but as soon as i try with
min subdivs 1
max subdivs 40 (or more, I want 56)
noise 0.02

as soon as i try with the above or more subdivs I get hanging buckets, one of the gpus (in dual gpu enabled mode) hangs and drops power usage to 50% and never complets the buckets.
When i try to render the scene with either of the gpus alone again it gets stuck in the middle of the render. The scene uses arround 14gb of the memory and i have used filecashes to bring it down.

in a sequence of 175 frames i have only managed to render 26 frames. the files usually gets stuck wither on the frame i start the render on, after 5 frames or after 14 frames... completly unpredicatable and i cannot finish my work.

I have tried with the 461.47 nvidia driver and with the 471.11, with houdini 18.5.499 and houdini 18.5.596

I have successfully rendered other scenes with both gpu's enabled.

my vray benchmark scores in rtx mode 5432



plz help. many thanks in advance.

[anthony_kyriazis]

Hello, i made and setup a new render output, seems to be working now... wierd.. do they sometimes get corrupted?

[anthony_kyriazis]

it rendered 4 frames and got stuck again. ((((

[Dubbie99]

Chaos won't really be able to help you without a scene file. What you describe above is something all of us do all the time and don't come across the problem, so a sample scene would be needed to investigate.

[anthony_kyriazis]

File can be found here https://drive.google.com/file/d/1XCY...ew?usp=sharing

[tsvetomira.girginova]

Dear anthony_kyriazis, hello.

Thank you for the provided scene.
The link is successfully delivered to our e-mail address too.
I have just requested access to open it.

Please share and we will start the investigation.
Also, as a starting point, is the rendering process successful if you choose Progressive mode?

Thank you in advance.

Best regards,
TS

[anthony_kyriazis]

Hello, the file should be accessible now, unfortunately no i have not been successfull in getting the scene to render in progressive mode.

[miro.digital]

Hey anthony_kyriazis I have the same 2x3090 setup, could give it a try if you need some feedback.