I have 290.10 in ubuntu 64bits so it is or a bug in the Toolkit4.1 or some function deprecated or who knows.
Link to the good CUDA Toolkit 4.0
Yeah, and there's no guarantee 4.1 would offer Cycles any real benefit at this point in it's development . . . I wont waste any more time with 4.1 til Brecht does something with it.
I dont know if this new to anyone but Cycles (CPU) seems to love bandwith like crazy.
Unless you fill the limited Vram
AMD Phenom X4 925
GeForce GTX 460
Running Gentoo Linux
I'll mention, my poor HP laptop with a quad core A8-3500m took like 11+ minutes.
Last edited by abbey_normal; 02-Feb-12 at 22:32. Reason: Added OpenCL
Is it not better to post also the memory capacity ,type and memory bus for example 1280MB GDDR5 192bit. Or should I look at the cuda core for better performance.
Last edited by antonvdh; 03-Feb-12 at 07:28.
Oh wow!! BIG difference between Win 7 32-bit and 64-bit Ubuntu with XFCE ...
same system as before
Pentium D dual 3.4Ghz, 3G DDR2 RAM, PCIe ATI x600 256M
under win 7 32-bit that was 01:00:24.?? ... less that HALF the time!!!!
has we seen any tesla results yet?
imagine nvidia sponsoring blender fund. to have mango rendered on one of this machines, nvidia maximus.
You know, the maximus video got me thinking: wouldn't it be swell to have CUDA support for bullet physics and fluid simulator in Blender? I'd really love to use my GPUs to accelerate those simulations.
UPDATE: Hmmm, I just checked that Bullet physics in fact DOES support CUDA since 2.73 (present version is 2.79). I wonder what would take to get that into Blender.
UPDATE2: Heck, 2.77 even has OpenCL support. Having an updated Bullet physics in Blender is starting to become a must.
@juanjosetorres true true, I think officially bullet 3.x will start using OpenCL they might have it in there but ... on their site. anyways agree, OpenCL particles and fluid (if possible, maybe to advance calculations for GPUPU).
yeah not worth it for us, I think 3 geforce in SLI is cheaper and maybe better. but would be cool fi nvidia sponsored blender fundation mango project with a maximus ^^. Would be good promo to show cycles running for them using CUDA:
I'm also concerned with general OpenCL support in Cycles. I hope it matures fast. Has anyone gotten it to work in Cycles with multi-gpu? I've been able to use it in a single GPU, but not on two.
Hello, today I have done my first trial with Cycles in multi GPU mode (build r43935 on Graphicall), and it doesn't behave as I expected :
The preferences allow the use of one of the available GPUs, or all the GPUs, but it is not possible to use Two of Three available GPUs for example. I have one GTX 260 for display, and Two GTX 580 3GB for rendering, and I can't use the Two GTX 580. Except if I select all GPUs, but the rendering time is equal or worse than with only one GTX 580, and I think that the availlable memory amount will be the amount of the weakest card, so I would like to use the two big cards and exclude the GTX 260 (like I do with Octane). I tested with Cuda. OpenCL gives only a black screen.
My config : Win7x64Pro. IntelQuadXtreme9650.3GHz. 8GB RAM. One GTX 260 for display. Two GTX 580-3GB for rendering, in a Cubix-Xpander Pro2.
Is there a build allowing more flexible combinations of GPUs ? Do you know if this is being studied ?
Thanks in advance.
latest build from blender buildbot.
As for the flexibility in selectable GPUs, last time I used Blender in a 3 GPU setup, I could select any of the possible combinations from the dropdown menu. Right now I'm using a 2 x GTX580 setup, so I can't confirm the present behaviour of blender with 3 GPUs.