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Rendering a small test animation with directlighting kernel always fails with the errors below. The scene only uses 329 MB of VRAM. After the error occurs, C4D needs to be restarted, otherwise no further octane renders can be made. infochannel kernel works. Didn't try PMC. I tried adding the TrdDelay registry key as per some post on here, which didn't help either.

I'm running a system with 5 x 780Ti cards. Tried disabling some/a few of the cards, no change.

Any hints anyone?

Here's the log:

OctaneRender 3.08 (3080015)

CUDA error 700 on device 3: an illegal memory access was encountered
-> failed to launch kernel(kernel32)
CUDA error 700 on device 2: an illegal memory access was encountered
device 3: direct light kernel failed
-> kernel execution failed(kernel25)
CUDA error 700 on device 2: an illegal memory access was encountered
-> failed to launch kernel(kernel34)
device 2: direct light kernel failed
CUDA error 700 on device 0: an illegal memory access was encountered
-> kernel execution failed(kernel25)
CUDA error 700 on device 0: an illegal memory access was encountered
-> failed to launch kernel(kernel34)
device 0: direct light kernel failed
CUDA error 700 on device 1: an illegal memory access was encountered
-> failed to launch kernel(kernel23)
device 1: direct light kernel failed
CUDA error 700 on device 2: an illegal memory access was encountered
-> could not get memory info
CUDA error 700 on device 2: an illegal memory access was encountered
-> could not get memory info
CUDA error 700 on device 3: an illegal memory access was encountered
-> could not get memory info
CUDA error 700 on device 3: an illegal memory access was encountered
-> could not get memory info
CUDA error 700 on device 0: an illegal memory access was encountered
-> failed to unregister pinned memory
CUDA error 700 on device 0: an illegal memory access was encountered
-> could not get memory info
CUDA error 700 on device 0: an illegal memory access was encountered
-> failed to unregister pinned memory
CUDA error 700 on device 0: an illegal memory access was encountered
-> could not get memory info
CUDA error 700 on device 0: an illegal memory access was encountered
-> failed to deallocate device memory
CUDA error 700 on device 0: an illegal memory access was encountered
-> could not get memory info
CUDA error 700 on device 0: an illegal memory access was encountered
-> failed to deallocate device memory

I have just replied to your other post here:

viewtopic.php?p=337980#p337980

mojave wrote:I have just replied to your other post here:

viewtopic.php?p=337980#p337980

Hi Why does my slave render for 60-100 frames and then I also get CUDA 700 illegal memory access. What does it mean illegal memory access? RAM was sent to wrong part, no enought vram?> Thanks

This is usually related to driver issues, what dirver and OS do you use and have you tried reverting to an older version?