HP-UX Virtual Partitions Administrator's Guide (includes A.05.02)

CPU, Memory, and I/O Resources (A.04.xx)
CPU: Boot Processor and Dynamic CPU Definitions
Chapter 7
259
CPU: Boot Processor and Dynamic CPU Definitions
Beginning with vPars A.04.01, the restrictions of bound CPUs have been removed as well as the terms bound
and unbound. Now, there are two types of CPUs: boot processors and dynamic CPUs.
The Boot Processor is the CPU on which the OS kernel of the virtual partition was booted. There is one boot
processor per virtual partition. On booting of a virtual partition, the vPars Monitor determines which CPU
becomes the boot processor. Note that the specific CPU chosen as the boot processor may differ across virtual
partition reboots.
Dynamic CPUs are all the other CPUs, because all CPUs, except the boot processor of each virtual partition,
can be dynamically migrated. You can find which CPU is the boot processor by using the vparstatus
command; see “Commands: Displaying Monitor and Resource Information (vparstatus)” on page 140.
Note that you can only add CPUs that are available. If you are using iCAP (formerly known as iCOD), the
CPUs must be active and authorized by iCAP before you can add it to a virtual partition.
In A.04.xx, all CPUs can process I/O interrupts. See “Managing I/O Interrupts” on page 266.