AIX

HI friends
how to find the no sockets in the aix box am using the P520
Please help it.In the prtconf am getting no of physical processor 1 and in the bindprocessor -q am getting 0 1
Please help it am not able to understand exactly
mak

I'm not sure if i understand you correctly: "sockets" are a networking construct, a combination of an IP address (Layer 3 address) and a Port number (Layer 4 address).

An example would be "192.168.1.1:22" and it would denote the socket you'd need to use to open an SSH-communication. To get the status of all the sockets use the netstat -a command.

Somehow, though, I'm not sure if you really meant this.

I hope this helps.

bakunin

Hi,

prtconf shows you physical cpus in use, bindprocessor shows you logical cpus / runnable threads. If you have smt on than it is 1:2 on your system.

Regards
zxmaus

Do you actually mean the slot number the I/O device is in?

- if by "no sockets" you mean "number of sockets" , as in "no of physical processor", and ,

- if by "socket" you mean "processor" , then I assume you are looking for the number of CPUs (not cores) ;

- if this is what you seek, then be aware that the "lsdev -Cc processor" will list the cores available to your system, while the "bindprocessor -q" will tell you the number of "threads" that can be simultaneously executed on your system.

- if your machine has SMT enabled (the "smtctl" command can tell you that), then "bindprocessor" will tell you the number of "virtual processors" available,
and that matches the number of simultaneous threads your processors can execute.

hth.

good luck, and success !
alexandre botao
<< botao {dot} org >>

Hello forum,

I just want to add few small comments, since I see these kind of questions here and there.

lsdev, lscfg, prtconf, vmstat, (you name it), the only thing they display is the amount of virtual or logical processors on a micro-partitioned system.
The best tool to accurately show the current CPU assignment is lparstat -i.

Now if you want to find out how many CPU sockets or modules you have, nothing easier than that. Below command should return output on most multi socket/module machines since Power4.
lscfg -vpl sysplanar0 | egrep -i "MCM|WAY|W[ ]*PROC" | grep -v "BP EXPAN"

On your 520 it won't display anything though, since its a single socket/module, with 1-4 cores, where the CPU sits directly on the system backplane.

Nice link from IBM regarding Processor affinity on AIX - however this site well not let me post a link - so try IBM.com's developerWorks >AIX and UNIX > Technical library > Processor affinity on AIX

Maybe some of the ideas and commands might help you understand your issue better.