HP-UX Virtual Partitions Administrator Guide (includes A.05.09) (5900-2188, March 2012)

Determining If the System Has Dual-Core Processors
You can see the sibling and virtual partition assignment using vparstatus -d. If you do not
have a dual-core system, the output will show dashes (-) for the sibling and assignment information:
# vparstatus -d
CPU Cell Config Sibling Information
path CPU HPA ID Status Assigned to Path /vPar name
===== ================== ==== ====== ================== =======================
0.10 0xfffffffffc078000 0 E vpuma02 - -
0.11 0xfffffffffc07a000 0 E vpuma01 - -
0.12 0xfffffffffc07c000 0 E vpuma04 - -
0.13 0xfffffffffc07e000 0 E - - -
...
When you do have dual-core system, the vparstatus -d output will look similar to the following:
# vparstatus -d
CPU Cell Config Sibling Information
path CPU HPA ID Status Assigned to Path /vPar name
===== ================== ==== ====== ================== =======================
0.10 0xfffffffffc070000 0 E vpkeira1 0.11 vpkeira3
0.11 0xfffffffffc071000 0 E vpkeira3 0.10 vpkeira1
0.12 0xfffffffffc074000 0 E - 0.13 vpkeira4
0.13 0xfffffffffc075000 0 E vpkeira4 0.12 -
0.14 0xfffffffffc078000 0 E - 0.15 -
0.15 0xfffffffffc079000 0 E - 0.14 -
...
You can also use the parstatus command or parmgr to determine if you are running dual-core
processors. If the maximum number of CPUs per cell is 8, then you are running dual-core processors:
# parstatus -c 0
[Cell]
CPU Memory Use
OK/ ( GB) Core On
Hardware Actual Deconf/ OK/ Cell Next Par
Location Usage Max Deconf Connected To Capable Boot Num
========== ============ ======= ========= =================== ======= ==== ===
cab0,cell0 active core 8/0/8 2.0/ 0.0 cab0,bay0,chassis0 yes yes 0
Figure 24 Using Partition Manager to Determine Dual-Core Processors
Determining Sibling CPUs
Once you have determined that you have a dual-core system, the siblings have adjacent hardware
paths. The first core’s path ends in an even number, and its sibling’s path ends in the following
(odd) number. For example, if the ioscan output shows:
0/10 processor Processor
0/11 processor Processor
0/12 processor Processor
0/13 processor Processor
0/14 processor Processor
0/15 processor Processor
0/16 processor Processor
0/17 processor Processor
222 CPU, Memory, and I/O Resources (A.04.xx)