I'm using SVP 3.1.1 with 3.1.2 pre-patch.
But GPU memory not use more.
The other hand, the CPU memory is about exhausted.
use SVP 3.1.1 GPU memory
SVP 3.1.1 CPU+GPU memory
The SVP 3.1.1 whether the GPU memory to do some improvements, rather than not used.
SVP setting
CPU: i7-870 2.93GHz
RAM: 4G
GPU: NVIDIA GeForce GT 430