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Subject: Re: [OMPI users] openmpi hangs when running on more than one node (unless i use --debug-daemons )
From: Advanced Computing Group University of Padova (acg.unipd_at_[hidden])
Date: 2010-12-28 05:31:38


yes i've tested 'em
In fact using the --debug-daemons switch everything works fine! (and i see
that on the nodes a process calles orted... is started whenever i launch a
test application)
I believe this is a environment variables problem....

On Mon, Dec 27, 2010 at 10:16 PM, David Zhang <solarbikedz_at_[hidden]> wrote:

> have you tested your ssh key setup, fire wall, and switch settings to
> ensure all nodes are talking to each other?
>
> On Mon, Dec 27, 2010 at 1:07 AM, Advanced Computing Group University of
> Padova <acg.unipd_at_[hidden]> wrote:
>
>> using openmpi 1.4.2
>>
>>
>> On Fri, Dec 24, 2010 at 11:17 AM, Advanced Computing Group University of
>> Padova <acg.unipd_at_[hidden]> wrote:
>>
>>> Hi,
>>> i am building a small 16 nodes cluster gentoo based.
>>> I succesfully installed openmpi and i succesfully tried some simple small
>>> test parallel program on a single host but...
>>> i can't run parallel program on more than one nodes
>>>
>>>
>>> The nodes are cloned (so they are equals).
>>> The mpiuser (and their ssh certificates) uses /home/mpiuser that is a nfs
>>> share.
>>> I modified .bashrc
>>>
>>> -------------------------
>>> PATH=/usr/bin:$PATH ; export PATH ;
>>> LD_LIBRARY_PATH=/usr/lib64:$LD_LIBRARY_PATH ; export LD_LIBRARY_PATH ;
>>>
>>> # already present below
>>> if [[ $- != *i* ]] ; then
>>> # Shell is non-interactive. Be done now!
>>> return
>>> fi
>>> ---------------------
>>>
>>> The very very strange behaviour is that using the --debug-daemons let my
>>> program run succesfully.....
>>>
>>> Thank you in advance and sorry for my bad english
>>>
>>>
>>>
>>>
>>
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>> users_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
>
>
>
> --
> David Zhang
> University of California, San Diego
>
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