Vray Sketchup Render threads 12 instead of 24

Hi,

Am using Sketchup Pro 2016 with Vray 2.0 adv. My PC having processor of “Intel® Xeon® Processor E5-2650 v4” engine 12 core with 24 threads. But while rendering in vray its only showing 12 threads instead of 24. It also taking so much time for rendering.
Can anyone help me to select good render setting also let me know how to rendering in GPU by using vray 2.0.

T&R,
Haneesh

I think the thread-count is a ‘virtual’ one, simply meaning ‘twice as wide, twice as slow’ No gain here.
For the GPU: