I’m currently doing a Cycles render on my Win x64 Core i7 system. It seems as though Blender is using only one of the 8 cores, although total CPU usage does go up to 20% occasionally, possibly due to other processes. Is this normal? I’m pretty sure Blender is set to use all available cores by default.
[I haven’t been able to do a GPU render with this image, probably because it is too big (5000 x 3500 pixels) and I don’t have enough video RAM]
Oops, it actually IS doing a GPU render. Strange, that wouldn’t work for me earlier on an image this size. Guess this one is just a tad smaller.