Re: [Gems-users] Trying to run multi-program

[Dan Gibson <degibson@xxxxxxxx>]

>From man psrset:
The default processor set (0) always exists and may not be destroyed.
All processes and processors at system init time start out in the
system default processor set. For this reason processor 0 may never
be removed from the default group. (Hence this feature is of no value
on a single processor system.)

Hence, in order to have two bound processes, you need at least three processors. What you have probably done is inadvertently bound both processes to CPU 1. 

Perhaps bind one and not the other?

Regards,
Dan

On Mon, Apr 12, 2010 at 3:48 PM, sparsh mittal ISU <sparsh@xxxxxxxxxxx> wrote:

Hello
I am trying to learn running multiple-programs on simics.
On abisko-target (solaris os), I am trying to run two benchmarks , by
./app1 arg1 &
./app2 arg2 &
as suggested by Dan.

Now, psrinfo shows that two processors are on-line. When I bind processes to processors
I find that at no time both the app1 and app2 are running. When one is running, other is in runnable queue and
the cpu utilization of two processes is around 50%, although based on their pid, they are allocated to different
processors. I would be thankful if anyone can explain whether 50% is because of average; and is it possible to run the two app1 and app2
simultaneously.

--
Thanks and Regards
Sparsh Mittal


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