topic Re: Is my server multicore? in Operating System - HP-UX

Is my server multicore?

Tom Kunkel — Fri, 02 Feb 2007 11:33:26 GMT

Without pulling the box out and peering inside, is there a way of telling if the server has single core or multicore processors?

Re: Is my server multicore?

A. Clay Stephenson — Fri, 02 Feb 2007 11:43:17 GMT

Of course, use "The Force". Otherwise, know enough about your equipment model to be able to look the information up or to run diagnostics and information utilities to ask the box itself. When you ask a question like this and provide no details, it becomes very difficult to answer.

Re: Is my server multicore?

Tom Kunkel — Fri, 02 Feb 2007 11:48:05 GMT

haha.

Details then: I have a rp4440 that reports 4 CPUS (cstm, glance, sar, etc). There is a rp3440, a rp5470, etc

What I need to know is, without physically opening the box, if it is 2 physical CPUs or 4.

Any ideas?

Re: Is my server multicore?

Tom Kunkel — Fri, 02 Feb 2007 11:48:26 GMT

Oh yes, HPUX 11i

Re: Is my server multicore?

V. Nyga — Fri, 02 Feb 2007 11:52:47 GMT

Hi,

with 'top' you should see it.
But it can be dual-core, so maybe one cpu with two cores shows two cpu stats.

Volkmar

Re: Is my server multicore?

Oviwan — Fri, 02 Feb 2007 11:53:34 GMT

Hy

output of this thread:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1014866

# ioscan -fnkCprocessor

Regards

Re: Is my server multicore?

John E.Ophious — Fri, 02 Feb 2007 11:56:36 GMT

Hello,

ioscan -k | grep -n processor | wc -l

should do the trick.

Re: Is my server multicore?

Tom Kunkel — Fri, 02 Feb 2007 12:09:23 GMT

Nope. Top, ioscan, glance, sar, cstm all show the same number of 4 processors. I have jsut had it confirmed that it is a 2-way dual core job. But how can I tell the difference from the operating system?

Re: Is my server multicore?

Robert-Jan Goossens_1 — Fri, 02 Feb 2007 15:41:35 GMT

Hi Tom,

I don't think there is direct command to display the number of dual cores inside a server. The only two dual core PA-RISC processors are the PA-8800 and the PA-8900.

# echo "selclass qualifier cpu;infolog" | /usr/sbin/cstm | grep "CPU Module"

If above command displays one of the two cpu mentioned above, you know you have a dual core.

Best regards,
Robert-Jan

Re: Is my server multicore?

Tom Kunkel — Fri, 02 Feb 2007 16:04:01 GMT

Brilliant! That's it. One server has 8700's and true enough, is isn't multicore.

Thanks. This was really helpful.