HP-UX Workload Manager User's Guide

Glossary
OTHERS group
Glossary520
OTHERS group The reserved workload
group OTHERS with ID 1. WLM uses this
group as the initial group for any user who
does not have a user record in the WLM
configuration file.
partitions See the definition for nPartitions
and virtual partitions.
Pay per use (PPU) For customers
interested in leasing CPU capacity from HP
Finance, Pay per use is supported on
cell-based Integrity servers and is part of the
HP Utility Pricing Solutions program. It is a
product that provides CPU (core) capacity as
needed, basing payment on actual metered
or monitored use of that capacity. You
acquire a particular hardware platform and
number of processors, and are charged for
usage of the processors based on demand.
See also Instant Capacity (iCAP), Temporary
Instant Capacity (TiCAP).
PID Process ID.
PRM Process Resource Manager. An HP
product used to dynamically divide resource
utilization among different applications and
users. WLM builds on the features of PRM
and provides automatic resource allocation.
PRM_SYS group The reserved workload
group PRM_SYS with ID 0. WLM places all
system processes in this group by default.
System processes are processes started by a
user with UID 0.
process group Every process (except
system processes, such as init and
swapper) belongs to a process group. A newly
created process joins the process group of its
creator. When you create a job, the shell
assigns all the processes in the job to the
same process group. Signals can propagate
to all processes in a process group; this is a
principal advantage of job control.
process group ID Each process group is
uniquely identified by an integer called a
process group ID. Each process group also
has a process group leader. The process
group’s ID is the same as the process ID of
the process group leader. Every process in a
process group has the same group ID.
process ID An integer, assigned to a process
at creation, that uniquely identifies the
process to HP-UX.
process map A powerful and flexible tool
that allows you to establish your own
criteria for how processes are placed in
workload groups rather than using WLM’s
default criteria (application, user, Unix
group, or secure compartment records).
PSET workload A WLM workload that is
assigned CPU resources based on the
processor set (PSET) upon which it is
defined. See also FSS workload group.
real memory Real memory is shared by all
processes. The data and instructions of any
process (a program in execution) must be
available to the core by residing in real
memory at the time of execution.
relative CPU units In WLM
configurations, relative CPU units represent
a percentage of the system’s total CPU
resources. Consequently, the number is
relative to the number of active cores. For
example, 50 relative CPU units is 50% of the