How to get Number of cpu cores and cpu thread on HP itanium

[Chanthu]

Hello,

I would like to know is there any command or c++ api which will give the following cpu information on HP
1. Number of physical processor
2. Number of logical processor( number of cores)
3. Number of threads (if multi threading enabled)

Thanks in advance
Chanthu

[Torsten.]

Try with "machinfo":

machinfo
CPU info:
1 Intel(R) Itanium 2 9000 series processor (1.4 GHz, 12 MB)
399 MT/s bus, CPU version C2
2 logical processors (2 per socket)
...

and setboot

setboot
Primary bootpath : 0/0/0/3/0.0x6.0x0 (/dev/rdisk/disk4)
HA Alternate bootpath :
Alternate bootpath : 1/0/0/3/0.0x6.0x0 (/dev/rdisk/disk5)

Autoboot is ON (enabled)
Hyperthreading : ON
: ON (next boot)
...

Hyperthreading works only with 11.31.

[Sani]

Hi,

1&2 use "machinfo "

3 use "glance -Z "

[Hakki Aydin Ucar]

also issue the command for previous 11i
#ioscan -fnC processor

[Emil Velez]

The top command shows a line for each processor the OS sees

[Chanthu]

Hello,

Thanks for all your replays
In my machine machinfo is giving the following output. its not showing anything about cores, it shows only toatls cpu count.

CPU info:
Number of CPUs = 4
Clock speed = 1400 MHz
Bus speed = 400 MT/s
CPUID registers
vendor information = "GenuineIntel"
processor serial number = 0x0000000000000000
processor version info = 0x0000000020000704
architecture revision: 0
processor family: 32 Intel(R) Itanium 2 9000 series
processor model: 0 Intel(R) Itanium 2 9000 series
processor revision: 7 Stepping C2

setboot will shows Hyperthreading ON/OFF. but is there any way to find out the eaxct count of threads and count of cores?

Thanks in advance
Chanthu

[Johnson Punniyalingam]

Hi Chanthu,

Please run the Nickel.script which has been provided by HP, you get more information in HTML format, very Cool and very impressive ..:)

You must run as root

Thanks,
Johnson

[Chanthu]

Hello,

Thanks for your reoplay.

I will clear my requerement here. I would like to create a c/c++ application which will claculate
1.Exact Number of physical processor
2.Exact Number of logical processor( number of cores)
3.Exact Number of threads (if multi threading enabled)

The problem with nickel script is that it will run only with root login and secondly I am getting some error messages from the script even if I run it as root.

adb: info: Option -k is deprecated.
adb: warning: Unrecognized format character - 'U'.
adb: info: Option -k is deprecated.
adb: warning: Unrecognized format character - 'D'.
adb: info: Option -k is deprecated.
adb: warning: Unrecognized format character - 'X'.
adb: info: Option -k is deprecated.
adb: info: Option -k is deprecated.
adb: warning: Unrecognized format character - 'X'.


Thanks and regards,
Chanthu

[Dennis Handly]

>I am getting some error messages from the script even if I run it as root.

See this recent thread about the same thing:
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1317756

[Torsten.]

You probably running 11.23, so 4 cores of Intel 9000 CPUs means 2 dual core modules, no HT.

[Chanthu]

Hello,

Anybody having a c/c++ program which will return the above cpu information on HP itanium?

Thanks and regards,
Chanthu

[Dennis Handly]

>Anybody having a C/C++ program which will return the above CPU info

You can get CPU info from pstat_getprocessor(2), example 2:
http://docs.hp.com/en/B2355-60130/pstat.2.html#d0e604810

[Chanthu]

Hi Dennis,

Thanks..

This will give total cpu count.
Is there any way to find out logical processors(cores) count and thread count on HP itanium 64. On x86 machines cpuid() will give the information. similarly any functionality available for HP itanium ?

[Dennis Handly]

>This will give total CPU count. Is there any way to find out logical processors(cores) count

CPU == core.
Have you looked at struct pst_processor to see if there are any details about the type of processor?
You should be looking at the 11.31 Release Notes if you want to see about hyperthreading.

[Torsten.]

You already have your identifier:

processor family: 32 Intel(R) Itanium 2 9000 series
processor model: 0 Intel(R) Itanium 2 9000 series
processor revision: 7 Stepping C2


Itanium 2 9000 series = dual core Montecito

[Taifur]

Hi Chantu,

You can check it by entering shell
shell means EFISHELL which comes after reboot the server & enter the EFI shell
shell>info all;


or from run the nickel script

#./nickel


Rgds//
Taifur

[Henry_3]

Hello Chanthu

I also have same question.

Do you slove this problem?

if then, plesae let me know it.

Really I want know

1. Number of physical processor
2. Number of logical processor( number of cores)

Thank you

[Torsten.]

@Henry:
Consider to open your own thread!

"machinfo" in 11.23 reports the number of cores, in 11.31 it reports the number of modules and cores per CPU. HT is only possible in 11.31; check with "setboot".

[Suraj K Sankari]

Hi,

Please run Nickel script

Suraj