How do you know if a CPU is dual processor

[John Jimenez]

This command below I found from a response in 2005 gives back good info (can't believe the guy did not give any points). It shows the Processor Chip revision. Is that how we can tell?

echo "selclass qualifier cpu;info;wait;infolog" | cstm | grep Processor

[skt_skt]

# echo "sel dev all;info;wait;il"|cstm
...
...


FRU INFORMATION

Module Revision
------ --------
PA 8900 CPU Module 3.2
PA 8900 CPU Module 3.2

...


In this example you see PA8900 CPU modules. Maybe you have PA8800 - both are always dual core.

[James R. Ferguson]

Hi John:

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=120&prodSeriesId=3346452&prodTypeId=15351&objectID=c01161194

Regards!

...JRF...

[John Jimenez]

I did the
echo "sel dev all;info;wait;il"|cstm
on one of our RP7410 and another RP7420 and got tons of info back. None of the output looked like your posting.

[John Jimenez]

Hi James I have Several RP7420's and RP7410. I went to the link and it said to do "machinfo", but that is not a valid command

[Torsten.]

Hi John,

see

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c00337654

the rp7420 specs. CPUs are either PA8800 or PA8900 - both are dual core.



The rp7410 has PA8700 - this is a single core.

[John Jimenez]

Thank you guys. I thought they were, but did not see it listed on the SAID's I was wondering if there was an actual command that would say. But thats good to know that they all are.

[John Jimenez]

thanks again

[Emil Velez]

Run top and if you have multiple CPU lines you have multiple processors active.

[Torsten.]

The "machinfo" command in hp-ux 11.31 works with RISC cpus too, example:

# machinfo -v
CPU info:
1 PA-RISC 8800 processor (800 MHz, 32 MB)
CPU version 4
2 logical processors (2 per socket)

Vendor identification: Hewlett-Packard
Processor version info: 0x0000000000000284
Processor capabilities: 0x00000000000000b2
FSTWS, FSTWX, FLDWS, FLDWX generate word tx to I/O space
Multimedia halfword shift-and-adds
Multimedia halfword adds and subtracts
Speculative data prefetch on loads of GR0
Instruction cache: 32 MB
Data cache: 32 MB

Memory: 4096 MB (4 GB)
...

[John Jimenez]

Oh so if you have multiple processors on your system in your system, then they have to be dual core? I thought if you put two on one board it was a dual processor. but I thought a system could could have multiple boards, but each board could hold one, then it was not.

[John Jimenez]

Okay thats whay machinfo does not work. I am not lucky enought to have 11.31. I only have 11.11 and 11.23.

[Md. Farhan A Azam · Accepted solution]

Hi, You can check through SAM,

Performance monitor - system properties

[Torsten.]

"Oh so if you have multiple processors on your system in your system, then they have to be dual core?"

No. Dual core CPUs are (in simple words) 2 CPUs on a single chip.

[John Jimenez]

Thanks Farhan,
I had forgotten about that screen. From there I can see the version PA8900.
CPU Version: CPU(0A) PA8900 4.1
Thanks Torsten,
I thought so. So Emil was incorrect when he said that you could tell by looking at top.

[Dennis Handly]

>Emil was incorrect when he said that you could tell by looking at top.

All top will tell you is how many active cores you have. That is close enough for government work. :-)

[jaivinder]

To find the CPU type whether it is dual core or not run the following command:

#machinfo

You can find the CPU type from the output.

[John Jimenez]

Thanks for clearing that up.

Like I mentioned before machinfo only works on 11.31, not 11.11 or 11.23