SUMMARY: Monitoring Parallel Jobs

From: Tru64 User (tru64user@yahoo.com)
Date: Fri Jul 12 2002 - 12:53:13 EDT


Good responses, thanks all. Oisin email below does the
job to a greater extent.

_Thanks

There are various options to ps that you can use to
show
a) the threading of a process
b) the processors in use by the process.

For example,

ps -o pid,psr,comm -A

show the command, the process id, and the command;
while
ps -A -m -O SCHED
shows thread details.

Repeatedly running these (the CDE tools have something
that does
this for you in a window) and grepping for the stuff
you care about
should help.

Oisin McGuinness

--- Tru64 User <tru64user@yahoo.com> wrote:
> What is the best Tool for monitoring parallel jobs?
>
>
> Background::
> Running a parallel job (using OpenMP).
> The jobs is designed to use all four processors
> (it echos back the thread numbers ranging from 0 to
> 3).
>
> "syd" shows (in Barchart mode) that the job
> is taking up around 90% of CPU for this particular
> user, but that doesn't seem right, in particular
> since
> in the "bar graphs" of syd all CPU is busy
> (indicating
> that the job indeed uses all processors).
>
> Using "ps ux" the jobs shows up using around 300% of
> CPU, which seems to indicate that multiple
> processors
> are used.
>
> Likewise, xload goes up by four units rather than
> one,
> which also seems to indicate that four threads are
> using the four processors in parallel.
>
> Is there any tool other than syd that can be used to
> monitor parallel jobs?
>
> Tru64 v4.0G 4100Aplha
>
> _Thanks in advance.
>
> Richard
>
>
> =====
>
>
> __________________________________________________
> Do You Yahoo!?
> Sign up for SBC Yahoo! Dial - First Month Free
> http://sbc.yahoo.com

=====

__________________________________________________
Do You Yahoo!?
Sign up for SBC Yahoo! Dial - First Month Free
http://sbc.yahoo.com



This archive was generated by hypermail 2.1.7 : Sat Apr 12 2008 - 10:48:46 EDT