[mpich-discuss] Error in the mpdboot step

[Prashantha Hebbar]

Hi Pavan,

I added new user with name mlscub1 to mlscub2-desktop and copied mpi-install
to the same. Then, did ssh-keygen as well. Still I find the same error.

mlscub1 at mlscub1-desktop:~$ mpdboot -n 2 -f mpd.hosts
unable to obtain IP for host: mlscub1 at mlscub1-desktop.local
unable to obtain IP for host: mlscub1 at mlscub2-desktop.local
totalnum=2  numhosts=1
there are not enough hosts on which to start all processes

Should I make any changes in any other file, other than /etc/hosts?

Regards,
Prashantha


-----Original Message-----
From: mpich-discuss-bounces at mcs.anl.gov
[mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Pavan Balaji
Sent: Wednesday, February 03, 2010 1:03 PM
To: mpich-discuss at mcs.anl.gov
Subject: Re: [mpich-discuss] Error in the mpdboot step


On 02/03/2010 01:29 AM, Prashantha Hebbar wrote:
> Yes, one with ssh mlscub1 at mlscub1-desktop.local and other with ssh
> mlscub2 at mlscub2-desktop.local

Ah. This can be problematic. It's recommended that you have a common
setup on both machines. That is, same user names, and directory
structure exporting the MPICH2 installation and executable in a common
location.

Most folks typically use a shared filesystem (such as NFS) which gives a
common view of everything on all machines.

 -- Pavan

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji
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