Rendering does not start on Backburner / takes long time on local machine

[OPKJoe]

I have created a rather large ocean simulation with about 100m cells. All settings are set up pretty much according to the ship in ocean tutorial by chaosgroup. Simulation took a while but worked fine.
I just get the following problem when I want to render a still or animation of it:

On my local machine:
It says transforming vertices for about 15 minutes.
Afterwards it says "Updating objects" for about another 10-15 minutes.
Then a warning message pops up, telling me that mist/splash in point mode with liquid simulator will consume additional memory for the displacement, when I click ok, the rendering starts.
During rendering the RAM goes up to 64 GB (100%).

When I try to submit it to backburner:
Nothing happens for a long time. When I try to connect via remote desktop it takes a loooong time to connect (the system seems pretty busy).
But I don't see any progress. I waited for about 45 minutes without seeing the rendering start.

Do you have any suggestions on this? I will have to render this animation in UHD, therefore I hope to find a solution here.

Software used:
3ds Max 2019.1.1
Phoenix FD 3.11.00 (May 30 201
V-Ray Build 3.60.04 (official) (17 November 2017)

[Svetlin.Nikolov]

Hey,

This question is answered pretty frequently in the forums, you can search around for more info, and also check the docs on the ocean parameters.

Basically - try lowering the image resolution together with the Ocean Subdivs, so you'll get a quick render. Then start increasing them back up and you will find the optimal subdivs value that doesn't overflow your RAM. Once you overflow the memory, everything will take many times longer.

Hope this helps!