maximizing MATLAB performance on Dual XEON with 40GB RAM and GTX1070ti

I have a DELL T7500 with dual Xeon E5645s (12 Core - 24 thread H/T) with 40GB of DD3 RAM and a GTX1070 and a modern SSD (Samsung 850 series)

how would i configure my local parallel pool ?

and other memory/matrix settings to maximise the usage of this hardware.

I also have a powerful graphics card. I have tested using gpuArray and this works. I want to be able to maxmise the performance of plotting large datasets using the quiver3 and contourf functions.

workspaces for the datasets i work with can be up to 2.5GB