At the moment CUDA seems totally broken on my system (ubuntu x64 12.04, GTX 570 on dual-screen).
Cycles was working perfectly fine until a few weeks ago, then after a ‘casual’ update, it stopped working for some reason, alongside with Octane and Indigo (who both use CUDA).
So when I launch blender and start a GPU render with Cycles, I get this error message.
CUDA error: Unknown error CUDA error: Invalid context in cuMemAlloc(&device_pointer, mem.memory_size()) Abandon (core dumped)
It’s the same with 2.62, 2.63 and 2.63 SVN.
Suspecting that the latest Nvidia’s drivers (295.40) might be the cause of the problem, I reverted manually to previous version 295.33, but it didn’t fix anything.
I even tried latest beta 302.07.
So, if the drivers aren’t causing the problem, what might be ? I bet I’m not the only one encountering this problem.
Any help much appreciated !