Can hyperthread be enabled

I would like to know if hyperthread can be enabled on my operating system or not? I am using HP-UX Itanium, below is truncated output of machinfo Intel(R) Itanium(R) Processor 9560 (2.53 GHz, 32 MB) 8 cores, 16 logical processors per socket 6.38 GT/s QPI, CPU version D0 Active processor count: 1 socket 8 cores (8 per socket) 8 logical processors (8 per socket) LCPU attribute is disabled OS Info is as below: Release: HP-UX B.11.31