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HP-UX Virtual Partitions Administrator’s Guide > Chapter 8 CPU, Memory, and I/O Resources (A.03.xx)
CPU: Adding and Removing Bound CPUs |
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To understand how to assign CPUs, you need to understand the command syntax. Below is a brief explanation of the CPU allocation syntax for the vparcreate command. For complete information, see the vparcreate(1M), vparmodify(1M), and vparresources(5) manpages. The core vparcreate syntax for CPU allocation includes: vparcreate -p partition_name [-a cpu::total] [-a cpu:::[min][:[max]]] [[-a cpu:hw_path]...]
The vparmodify command follows a similar syntax, except that vparmodify allows the -m (modify) option as well as the -a (add) or -d (delete) option. With the -m option, the number used with the -m is an absolute number. For example, -m cpu::3 represents an absolute number of three total CPUs; in this case, it sets the total number of CPUs (bound plus unbound) to three. With the -a option (as well as the -d option), the number used with the -a is a relative number of CPUs (relative to the number of CPUs already assigned to the virtual partition). For example, -a cpu::3 represents three CPUs relative to the number of existing CPUs; in this case, -a cpu::3 adds 3 additional unbound CPUs to the number of unbound CPUs already assigned to the partition. [3] When the vPars Monitor is running and you are not specifying an alternate database. If the vPars Monitor is not running or you are specifying an alternate database, the max may be a different number. |
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