[GE users] SGE 6.0u4 on lx24-x86 - lots of sge_qmaster entries in proc table

Ron Chen ron_chen_123 at yahoo.com
Wed May 25 18:03:09 BST 2005


An easy way to check for NPTL:

% ls /lib/tls/

On older 2.4 kernels, the TLS (Thread local storage)
directory is missing.

 -Ron

--- Rayson Ho <raysonho at eseenet.com> wrote:
> May be AS 2.1 is old enough that it only has
> "LinuxThreads".
> 
> Since qmaster is threaded, LinuxThreads will show
> the threads as processes.
> Newer kernels with NPTL have that fixed.
> 
> Rayson
> 
> 
> >I'm deploying 6.0u4 on a 26-node IBM Bladecenter
> based cluster (arch
> dualproc
> >lx24-x86) with the head node running Redhat
> Advanced Server 2.1 and the
> nodes
> >running RH AS3.x
> >
> >The install went fine and test jobs are running but
> something is odd about
> the
> >process table on the qmaster host:
> >
> >[root at master sge]# ps ax | grep sge
> >32412 ?        S      0:00
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32414 ?        S      0:00
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32419 ?        S      0:00
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32421 ?        S      0:00
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32423 ?        S      0:43
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32425 ?        S      0:18
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32426 ?        S      0:00
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32427 ?        S      0:00
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32428 ?        S      0:00
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32429 ?        S      2:00
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32430 ?        S      1:59
> /usr/local/sge/bin/lx24-x86/sge_qmaster
> >32433 ?        S      0:00
> /usr/local/sge/bin/lx24-x86/sge_schedd
> >  477 pts/2    S      0:00 grep sge
> >[root at master sge]#
> >
> >
> >Anyone else seeing "many sge_qmaster" daemons? This
> occurs even after
> clean
> >shutdown and restart.
> >
> >I'm at a client site without easy acesss to the web
> so I can't search the
> list
> >archives. Apologies if this turns out to be
> something obvious...
> >
> >Regards,
> >Chris
>
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