OTOY Forums

Hi all,

When starting a render on my OS X machine with cuda versions 4.1.29 and 3.2.17, the app crashes instantly. This used to run fine, it's on a Macbook Pro (2010 model) with a GeForce GT 330M card. It happens regardless of the scene file.

This is what's written to the event log:

19/02/12 23:43:59 [0x0-0x4b24b2].org.refractivesoftware.octanerender[29527] Releasing cuda context on thread -1341116416
19/02/12 23:43:59 [0x0-0x4b24b2].org.refractivesoftware.octanerender[29527] Activating cuda context on thread -1337884672
19/02/12 23:43:59 [0x0-0x4b24b2].org.refractivesoftware.octanerender[29527] /Users/terrence/devwork/cuda32_demo/Octane_Project/src/renderer/rendertarget.cpp(758) : cudaSafeCall() Runtime API error : unspecified launch failure in prior launch.

Not sure what to try next... any hints?

Cheers

- Balt

Check the Nvidia driver version installed

afaik for the fairly old demo version, you need to have the cuda toolkit 3.0 installed (maybe 3.1 not sure); any newer version might cause this...

Try reinstalling Octane after reinstalling the cuda toolkit.

--
Roeland

I purchased a license and now it works with v4 of the CUDA drivers. The next problem I had was that "no cuda devices" were found. Resolution (if on a 2010 Macbook Pro):

In the control panel, in energy saver, make sure "automatic graphics switching" is disabled! Otherwise it'll apparently switch off the internal nvidia graphics and use the onboard intel chip (hence no cuda device available!).

Cheers

- Balt

balt wrote:I purchased a license and now it works with v4 of the CUDA drivers. The next problem I had was that "no cuda devices" were found. Resolution (if on a 2010 Macbook Pro):

In the control panel, in energy saver, make sure "automatic graphics switching" is disabled! Otherwise it'll apparently switch off the internal nvidia graphics and use the onboard intel chip (hence no cuda device available!).

Cheers

- Balt

... glad you sorted it out & thanks for the hint with that "automatic graphics switching"