How can I tell if I have a 32-bit or 64-bit kernel?
First off, in all versions of HP-UX prior to 11.00, the kernel is always
32-bit. That being said, on 11.x systems, there are several ways to
determine whether you're running a 32 or 64 bit kernel...
From the command-line
$ getconf KERNEL_BITS
$ file /stand/vmunix
/stand/vmunix: PA-RISC1.1 executable ---> 32-bit
/stand/vmunix: ELF-64 executable object file ---> 64-bit
1) goto Performance Monitors -> System Properties -> Operating System
2) check OS Kernel Width: value