HP Integrity Superdome 2 16-socket HP Superdome 2 Partitioning Administrator G - Page 74

CPU-core, CPU-core: Boot Processor Definitions, CPU-core: Specifying Min and Max Limits

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CPU-core NOTE: Processor Terminology Processing resources under vPars, both as input arguments and command outputs, are described as "CPU-cores." The term "processor" refers to the hardware component that plugs into a processor socket. Therefore a single processor can have more than one core, and vPars commands will refer to the CPU-core with its resource path. Two vPars terms pre-date multi-core processors, so they are exceptions to this terminology: • "Boot processor," which refers to the CPU-core on which the OS kernel of the virtual partition was booted. • "Socket local processor (SLP)," which refers to a CPU-core in a specified socket on a specified blade. CPU-core: Boot Processor Definitions The Boot Processor is the CPU-core on which the OS kernel of the virtual partition was booted. There is one boot processor per virtual partition. CPU-core: Specifying Min and Max Limits The syntax to specify min and max CPUs assigned to a virtual partition is: -a, -m cpu:::[min]:[max] where: -a adds resources to a virtual partition. -m modifies existing resources in a virtual partition. min is the minimum number of CPUs for the virtual partition to boot and the minimum number of CPUs that must remain assigned to the partition max is the maximum number of CPUs that can be assigned to the virtual partition NOTE: On a HP Integrity Superdome 2, a vPar is created with zero CPUs by default. Therefore the default cpu:::[min] value is zero. The virtual partition must be in the down state to set the min or max value. The total count of CPUs in the virtual partition must always be greater than or equal to min and less than or equal to max. Examples • To set the minimum number of CPUs to 2: vparmodify -N -m cpu:::2 • To set the minimum number of CPUs to 2 and the maximum to 4: vparmodify -N -m cpu:::2:4 CPU-core: Adding and Deleting by Total NOTE: Any modification to a vPar can be done only when the vPar is in the "Down" state. The basic syntax for adding and deleting CPUs is: -a, -d, -m cpu::num where: -a, -d, -m specifies adding, deleting, or modifying the total count of CPUs 74 Planning Your System for Virtual Partitions

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CPU-core
NOTE:
Processor Terminology
Processing resources under vPars, both as input arguments and command
outputs, are described as “CPU-cores.” The term “processor” refers to the hardware component
that plugs into a processor socket. Therefore a single processor can have more than one core,
and vPars commands will refer to the CPU-core with its resource path.
Two vPars terms pre-date multi-core processors, so they are exceptions to this terminology:
•
“Boot processor,” which refers to the CPU—core on which the OS kernel of the virtual
partition was booted.
•
“Socket local processor (SLP),” which refers to a CPU-core in a specified socket on a specified
blade.
CPU-core: Boot Processor Definitions
The
Boot Processor
is the CPU—core on which the OS kernel of the virtual partition was booted.
There is one boot processor per virtual partition.
CPU-core: Specifying Min and Max Limits
The syntax to specify
min
and
max
CPUs assigned to a virtual partition is:
-a, -m cpu:::[
min
]
:
[
max
]
where:
-a
adds resources to a virtual partition.
-m
modifies existing resources in a virtual partition.
min
is the minimum number of CPUs for the virtual partition to boot and the minimum number
of CPUs that must remain assigned to the partition
max
is the maximum number of CPUs that can be assigned to the virtual partition
NOTE:
On a HP Integrity Superdome 2, a vPar is created with zero CPUs by default. Therefore
the default cpu:::[min] value is zero.
The virtual partition must be in the down state to set the min or max value.
The total count of CPUs in the virtual partition must always be greater than or equal to
min
and
less than or equal to
max
.
Examples
•
To set the minimum number of CPUs to 2:
vparmodify -N <nPar name> -m cpu:::2
•
To set the minimum number of CPUs to 2 and the maximum to 4:
vparmodify -N <nPar name> -m cpu:::2:4
CPU-core: Adding and Deleting by Total
NOTE:
Any modification to a vPar can be done only when the vPar is in the “Down” state.
The basic syntax for adding and deleting CPUs is:
-a, -d, -m cpu::
num
where:
-a, -d, -m
specifies adding, deleting, or modifying the
total
count of CPUs
74
Planning Your System for Virtual Partitions