Kindly request for any advise on VisDOE limitation concerning large buildings. I'm working on a mixed use project that is first of all odd shaped with a gross area 3,969,058 sqft. Im using Visual DOE 4 .

Im finding it difficult to run the model due to limitations (Interior wall)

The project is provisioned with the 6 working centrifugal chillers.
Please suggest an alternate way to modeling in Visdoe.
Additionally,it is allowed by LEED to undertake split modeling in two parts by assigning three chiller for each model and then finally merge the result?

Information on any other options for modeling in Visual DOE would be most appreciated.