UNIX for Dummies Questions & Answers

How to find out whether the system has multiple processors.

In multiprocessor system how to get their names or ids

How to send command to a particular processor ( can we use rsh)

The top(1) command will show what processes are running on what processor.

You will have to tell us what flavour of Unix you are running at which point an expert on that flavour will tell you what can be done about running on a particular processor?

I am running on linux system. I have tried using top ( could not understand what the output meant).


What I want to know is how to run commands on different processors ( I think I will be able to do that using rsh but for that I need to know their name or id right??)

I am not able to use mpstat it says command not found.
I know I have 8 processors, found that using this command
$ cat /proc/cpuinfo |grep processor | wc -l

If the copy of top is multi-processor aware the process will show which CPU it is running with a slash and a number, that number being which processor the process is running on.

If mpstat is on your system somewhere then "locate(1)" will find it, you may have to run updatedb(8) first, so try running:

Code:

$ locate mpstat | grep bin

mpstat will show the loading for each processor (or the cpu you have selected depending on the version of mpstat) but not what is running on each processor.

Don't forget that the operating system should spread the load across the processors for you so you should not need to select which processor your process should run on.

try this

cat /proc/cpuinfo

but it is specific to os

Linux Only.

another command for cpu details

psrinfo -v

or /usr/platform/`uname -i`/sbin/prtdiag