[mpich-discuss] mpdboot error message

[Cezary Sliwa]

On Fri, Jan 15, 2010 at 01:37:02PM -0600, mpich-discuss-request at mcs.anl.gov wrote:
> Message: 4
> Date: Fri, 15 Jan 2010 13:36:56 -0600
> From: Dave Goodell <goodell at mcs.anl.gov>
> Subject: Re: [mpich-discuss] mpdboot error message
> To: mpich-discuss at mcs.anl.gov
> Message-ID: <9B4ADB37-A1EC-4F48-A68F-EF2B9F827161 at mcs.anl.gov>
> Content-Type: text/plain; charset=UTF-8; format=flowed; delsp=yes
> 
> I suspect you are hitting this bug: https://trac.mcs.anl.gov/projects/mpich2/ticket/974
> 
> "mpdboot" is normally issued as a foreground command, not in the  
> background.  It should exit immediately after setting up the ring.  If  
> your mpdboot is hanging then that is the real bug.  My access to some  
> CentOS machines to reproduce/fix always seems to be a few days away,  
> so I haven't been able to fix it yet.

Thank you very much for this explanation.

> 
> In the meantime, my recommendation is to use hydra unless you need one  
> of the very few mpd-specific features that still exist:
> 
> http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager
> 
> Out of curiosity, what operating system are you using?  CentOS/RHEL?

It is CentOS 4 x86_64.

Cezary Sliwa


> 
> -Dave
> 
> On Jan 15, 2010, at 11:02 AM, Cezary ?liwa wrote:
> 
> >
> > Hello,
> >
> > mpdboot in mpich2-1.2.1 displays an error message when mpdallexit is  
> > used:
> >
> > sl2klast2-n5 ~$ mpdboot -v -n 2 &
> > [1] 6793
> > sl2klast2-n5 ~$ running mpdallexit on sl2klast2-n5
> > LAUNCHED mpd on sl2klast2-n5  via
> > RUNNING: mpd on sl2klast2-n5
> > LAUNCHED mpd on sl2klast2-n6  via  sl2klast2-n5
> >
> > sl2klast2-n5 ~$ mpdallexit
> > sl2klast2-n5 ~$ mpdboot_sl2klast2-n5 (handle_mpd_output 415): failed  
> > to connect to mpd on sl2klast2-n6
> >
> > [1]+  Exit 255                mpdboot -v -n 2
> > sl2klast2-n5 ~$ cat mpd.hosts
> > sl2klast2-n5:4
> > sl2klast2-n6:4
> >
> >
> > Cezary Sliwa
> >
> >