Multi GPU
Multi GPU
Hello!
When is that coming? We are in the middle of 2013. And i see on the forum its been mentioned sometime in 2011. I mean for us users that have multiple gpu. It seems that this renderer isn't quite "cost effective" now is it?
LuxRender can already do MultiGPU bi directional rendering.
When is that coming? We are in the middle of 2013. And i see on the forum its been mentioned sometime in 2011. I mean for us users that have multiple gpu. It seems that this renderer isn't quite "cost effective" now is it?
LuxRender can already do MultiGPU bi directional rendering.
Re: Multi GPU
Hi ravenzep,
We are working on having the capability in Indigo to do almost all of the computation on the GPU. When we have this multi-GPU support will work much better and should follow shortly.
Until then there's not much point as the CPU is usually the bottleneck.
We are working on having the capability in Indigo to do almost all of the computation on the GPU. When we have this multi-GPU support will work much better and should follow shortly.
Until then there's not much point as the CPU is usually the bottleneck.
Re: Multi GPU
Thats bloody Fantastic. Will it be able to handle large datasets / meshes? Or is it bound to GPU memory like the rest of the GPU renderers?
Re: Multi GPU
It will definitely be bound to GPU memory at first. We may look into something more complicated later
Re: Multi GPU
But why not let Indigo customers decide if they want to render out of core or not, based on scene size
Small scenes = fast , BIG scenes = a bit slower
Small scenes = fast , BIG scenes = a bit slower
Re: Multi GPU
you already have the render affinity choice, CPU or GPU. CPU handles all render type options, GPU only a few.ravenzep wrote:But why not let Indigo customers decide if they want to render out of core or not, based on scene size
Small scenes = fast , BIG scenes = a bit slower
Re: Multi GPU
What you don't know is that OpenCL on the CPU runs faster than pure C++ on the cpu. LuxRender proves that pretty good.
Last edited by ravenzep on Thu May 16, 2013 4:45 am, edited 1 time in total.
Re: Multi GPU
No it doesn't!ravenzep wrote:What you don't know is that OpenCL on the CPU runs faster than pure C++ on the cpu. FluxRender proves that pretty good.
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Re: Multi GPU
What LuxRender proves is that their devs can fool their users pretty well
Re: Multi GPU
An example is not a proof...ravenzep wrote:What you don't know is that OpenCL on the CPU runs faster than pure C++ on the cpu. FluxRender proves that pretty good.
Also, since OpenCL on the CPU is, internally, a pure C++ implementation, we could rewrite the sentence "¨Pure C++ on the cpu runs faster than pure C++ on the cpu", which sounds weird
Well sometimes it does, if the base c++ implementation is poorly optimized. OpenCL tends to force to think parallel, which sometimes helps.No it doesn't!
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Re: Multi GPU
Gotta love when artists talk about C++...
Anyway Multi GPU isn't coming anytime soon for Indigo users
Anyway Multi GPU isn't coming anytime soon for Indigo users
Re: Multi GPU
Show some respect to the forum users ravenzep, or I will ban you.
Re: Multi GPU
Luxrender doesn't have full opencl rendering mode anyway. It has hybrid path rendering with opencl (ray intersections).
Then it has a completely seperate render engine called SmallLuxGPU (SLG), which is an opencl engine with a smaller feature set than that of Luxrender (but samples much quicker) and reads Luxrender scene files.
Luxrender is pretty good engine but it's slow (even with hybrid). Indigo probably 2-3x quicker (or more in some cases).
Then it has a completely seperate render engine called SmallLuxGPU (SLG), which is an opencl engine with a smaller feature set than that of Luxrender (but samples much quicker) and reads Luxrender scene files.
Luxrender is pretty good engine but it's slow (even with hybrid). Indigo probably 2-3x quicker (or more in some cases).
Re: Multi GPU
And, you know, I'm not even an artistravenzep wrote:Gotta love when artists talk about C++...
Eclat-Digital Research
http://www.eclat-digital.com
http://www.eclat-digital.com
Re: Multi GPU
Brag not, you senior coder !galinette wrote:And, you know, I'm not even an artistravenzep wrote:Gotta love when artists talk about C++...
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