Cuda Cores

Hello,

I am doing a rather intense scene in the blender cycles engine. This scene contains many hair strands.

However, When I switch to the GPU rendering system, there is always an error containing a message such as, ran out of CUDA core memory, or CUDA failed to launch. I have no idea why this is happening, I have a fairly decent PC, and I feel like i should be able to handle the scene.

I have and nvidia GeForce GTX 690 with an Intel-Core i7-4790K CPU.

I have no idea why this is happening and would appreciate a quick reply.

Thank you, :wink:

Most likely you’re running short of GPU memory
according to this you should have 4 (or 2?) GB on your graphics card. try to do a cpu render and check how much memory it requires

Hi, the GTX 690 double card share it´s memory, if it is a 4 GB card you can only use 2 GB for Cycles.
The system uses about 400 MB in GPU so you can even use 1.6 GB for Cycles.
You can try:

  1. Use your i7 GPU for display, all memory from GTX 690 is free for Cycles
  2. Use daily build from https://builder.blender.org/download/
    Developer had included many patches to save memory on GPU
  3. Use 1 + 2

Cheers, mib

Oh man I’m sorry, I’ve made a mistake. I have the Geforce GTX 960 not the 690, I should have enough cores to do so.