Not Enough Memory in Sparse Solver

Hello,

I have problems runing a big Staad pro model (165.000 nodes / 50.000 beams / 160.000 plates)

I have tried run it with IN-CORE and OUT-CORE solver but I get the error that I send you on pictures attached files (for this size I have read that its better OUT-CORE solver)

I have tried to use "INPUT MEMORY 160000" , I suppose that it is 160000/8000 = 20 GB  ?? (160000 bits)

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Staad pro version, S6            (20.07.11.33)

Computer caracteristic, I send your on attached files (28 GB Ram / 8 CPUs / 3.5GHz / Windows 8)

Hard disk 45 Gb free

Virtual memory for windows 4 GB

And other question, Staad pro doesn`t use all CPUs, if I run a model my computer run at 30% of CPUs, how can Staad pro uses the 8 proccesors of my computer (100%)

Thanks in advanced

Regards