Jump to content
vlb6

PC Build : which hardware component for simulations

Recommended Posts

Hi there,

I recently saw a post over on the C4DCafe forum :

https://www.c4dcafe.com/ipb/forums/topic/96539-requirements-for-speeding-up-simulations/#comment-641429

I am currently building a PC for animation, simulations, dynamics, rendering (although this would be in C4D), large scale photo editing, VFX, video editing etc, so this has got me thinking ; I don't exactly know what 'core features' means but I imagine it's a term for the 'back-end' way the software integrates with the hardware, so how does Houdini interact with the hardware? what parts does it utilize for these aspects of the 3D pipeline .. animation, simulations and dynamics?? and therefore my main question: which components do I need to focus on when doing the build to ensure I can do some advanced setups and still have reasonable viewports response, not too much waiting around etc.

Just for extra info here as some components I've decided on:

i7-6800
Asus X99-E
GTX 1080 Ti
64GB RAM

Hope this question was clear and thanks in advance

 

Share this post


Link to post
Share on other sites

That component list looks good. I would just add a SSD drive for the main OS and larger hard drive for storage of simulation files.

Share this post


Link to post
Share on other sites

I don't know whether C4D uses the GPU to accelerate simulation/rendering - if it does, then the 1080Ti can be a good idea, if it doesn't, then you might be better off with e.g. a 1070 and use the budget somewhere else.

Share this post


Link to post
Share on other sites

That is a good call, I have a 1070 and it works fine.

Ultimately I have had no success in leveraging GPU for final simulations in Houdini. It does help out during the development stage when you are working at a lower resolution or just learning the tool set. But when you move up to higher resolutions, which can requires days of simulation, there is more chance the OpenCL will crash and ruin everything causing you to start over again. This has happened to me consistently when trying to leverage OpenCL for hi-res simulations, in the end I always opt for turning off OpenCL just to get through the process successfully. I thought having 8GB of vRAM on the card would really help out but I can't verify that it does. (Redshift loves it though...)

Edited by Atom

Share this post


Link to post
Share on other sites

It's worth keeping in mind that OpenCL is now in used in the Sops like terrain and the muscles, not just DOPs. OpenCL is a core part of the speeding up Houdini in the future. Also inbuilt CPU OpenCL makes turning off OpenCL redundent.

Edited by marty

Share this post


Link to post
Share on other sites

Regarding OpenCl,im having slower performance on a 1070 than on Ryzen

https://www.dropbox.com/s/jnl9lzf60wawghp/BenchFlip.rar?dl=0

Open the scene,let flip update,mark playone on timeline
Activate opencl,activate performance,play it

I take the Total statistics value

_____________________________________________

Ryzen 1800X Stock 
64GB DDR4 Kingston CMK16GX4M1B3000C15 2128
1070GTX

CPU        13.263s
CPUOpenCl    13.633s
OpenCL1070GTX    14.026s

_____________________________________________

 

On the other hand Pyro seems to make more use of OpenCL

https://www.dropbox.com/s/vthfmz2yymmw5b8/BenchLight.rar?dl=0

____________________________________________
Ryzen 1800X Stock 
32GB DDR4 Kingston CMK16GX4M1B3000C15 2996
1070GTX

CPU        1m 40.626s
CPUOpenCl    53.647s
OpenCL1070GTX    29.755s
_____________________________________________

Edited by georgeivan

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×