DUAL CORE CPU

[NDO]

Hi All!

Sorry for this question, but can somebody explain to me what is the meaning of DUAL CORE CPU. Let´s say if I type ioscan -fnC processor, if see 4 CPUs does it mean that its actually 4 CPU´s or 2?
Sorry if I upset you guys

F.R.

[Dennis Handly]

A dual core CPU has two cores, in one socket.
So you have 4 CPUs and two sockets.
(This is ignoring hyperthreading.)

What type of hardware do you have? What HP-UX version?

[stephen peng]

2 is the answer.

[Torsten.]

Based on this information, you cannot tell.

A dual core has 2 CPUs on a single chip (in a single socket), a quad core has 4.

If possible, run "machinfo".

[Torsten.]

machinfo Example:

CPU info:
2 Intel(R) Itanium(R) Processor 9340s (1.6 GHz, 20 MB)
8 logical processors (4 per socket)
...

[NDO]

Hi!

# model
ia64 hp server rx7640
# uname -a
HP-UX dbnode0 B.11.31 U ia64 1298280496 unlimited-user license
# uname -r
B.11.31
# ioscan -fnC processor
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
processor 0 0/120 processor CLAIMED PROCESSOR Processor
processor 2 0/122 processor CLAIMED PROCESSOR Processor
processor 6 1/120 processor CLAIMED PROCESSOR Processor
processor 8 1/122 processor CLAIMED PROCESSOR Processor



Regards
F.R.

[NDO]

the output of machinfo:

# machinfo
CPU info:
4 Intel(R) Itanium 2 9100 series processors (1.42 GHz, 6 MB)
533 MT/s bus, CPU version A1

Memory: 32633 MB (31.87 GB)

Firmware info:
Firmware revision: 9.048
FP SWA driver revision: 1.18
IPMI is supported on this system.
BMC firmware revision: 4.01

Platform info:
Model: "ia64 hp server rx7640"
Machine ID number: 4d623030-8985-11de-8fa8-3dc276453580
Machine serial number: DEH4928J2E

OS info:
Nodename: dbnode0
Release: HP-UX B.11.31
Version: U (unlimited-user license)
Machine: ia64
ID Number: 1298280496
vmunix _release_version:
@(#) $Revision: vmunix: B.11.31_LR FLAVOR=perf
#


F.R.

[cnb]

It appears that you have 2 physical Dual Core 9100 series Processors that consume 2 physical sockets on the system board.

2 cores per die -> you have 4 CPUs in 2 sockets.



Quickspecs:

http://h18000.www1.hp.com/products/quickspecs/12470_na/12470_na.pdf

Rgds,

[Torsten.]

Your CPUs are dual core.

[NDO]

Hi Torsten!

Thanks , but what I want to know is how many and if any of them needs to be activated?

regards

F.R.

[Torsten.]

I think you have 1 module in cell0, 1 module in cell1.

Use

# parstatus -v

to confirm.

[study unix · Accepted solution]

Hi ,to see the below outpot,
# machinfo
CPU info:
2 Intel(R) Itanium 2 9000 series processors (1.42 GHz, 12 MB)
532 MT/s bus, CPU version C2
4 logical processors (2 per socket)

# ioscan -fnC processor
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
processor 0 120 processor CLAIMED PROCESSOR Processor
processor 1 121 processor CLAIMED PROCESSOR Processor
processor 2 124 processor CLAIMED PROCESSOR Processor
processor 3 125 processor CLAIMED PROCESSOR Processor


so, my output shows it should own two physical processors that includes four cores.
hope it is helpful for you!