How to boot in npar mode?

[dictum9]

I have an RX8640 that is not booted in npar mode. It's a rx8640 with 4 cell boards running 11.31.

>parstatus
Note: No action specified. Default behavior is display all.
Error: Unable to connect to the nPar Provider on <localhost>.
1. Verify that the HP nPar Provider (WMINParProvider on Windows) is installed and running on <localhost>.
2. Verify that you are logged-in to the correct account (or have provided the correct username & password) to access the provider on <localhost>.
3. CIM Server may not be responding to requests. Verify that the CIM Server is running on <localhost>.
PGS08000: CIM HTTP or HTTPS connector cannot connect to local CIM server. Connection failed.