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Subject: Re: [OMPI users] Help om Openmpi
From: Huynh Thuc Cuoc (htcuoc_at_[hidden])
Date: 2010-04-02 00:54:13


Thank you very much.
After that I try with the mpirun:
[guser1_at_ioitg2 examples]$ /opt/openmpi/bin/mpirun -np 10 --hostfile myhosts
ring_cxx
guser1_at_[hidden]'s
password:guser1_at_[hidden]<password%3Aguser1_at_[hidden]>'s
password:

This request passwd to login to nodes, but 2 massages in the line, I can
only success with one node, the 2sd. refussed.
So, how I can do as you advise, to login to each node without being prompted
for a password. ?
What I need to do. Help me.
I run openmpi 1.2.9 supporting SGE (when I buil with --with-sge). I had
tested to buil with 1.3. or 1.4. with this option I saw the error no
recognize --with-sge. Why ? bug or ? While docs README shows that this is
supported. I need this because I run SUN gridengine on may cluster. You have
some ideals ?
Thank you very much.
Sincerely.
HTCuoc

On Wed, Mar 31, 2010 at 5:43 PM, Jeff Squyres (jsquyres) <jsquyres_at_[hidden]
> wrote:

> Yes, you need to install open mpi on all nodes and you need to be able to
> login to each node without being prompted for a password.
>
> Also, not that v1.2.7 is pretty ancient. If you're juist starting with open
> mpi, can you upgrade to the latest version?
>
> -jms
> Sent from my PDA. No type good.
>
> ------------------------------
> *From*: users-bounces_at_[hidden] <users-bounces_at_[hidden]>
> *To*: users_at_[hidden] <users_at_[hidden]>
> *Sent*: Wed Mar 31 03:39:08 2010
> *Subject*: [OMPI users] Help om Openmpi
>
> Dear all,
> I had install my cluster which the configuration as following:
> - headnode :
> + linux CenOS 5.4, 4 CPUs, 3G RAM
> + sun gridengine sge6.0u12. The headnode is admin and submit node too.
> + Openmpi 1.2.9. In the installation openmpi :.configure
> --prefix=/opt/openmpi --with-sge ...Processes complilation and make was
> fine.
> + I have 2 others nodes which confg. are: 4 CPU, 1 G RAM and on which run
> sgeexecd.
> Testing for SGE on headnode and nodes by qsub was fine.
> When testing openmpi with as folowing:
> [guser1_at_ioitg2 examples]$ /opt/openmpi/bin/mpirun -np 4 --hostfile myhosts
> hello_cxx
> Hello, world! I am 0 of 4
> Hello, world! I am 1 of 4
> Hello, world! I am 3 of 4
> Hello, world! I am 2 of 4
> [guser1_at_ioitg2 examples]$
>
> The openmpi runs well.
> My file myhosts:
> ioitg2.ioit-grid.ac.vn slots=4
> node1.ioit-grid.ac.vn slots=4
> node2.ioit-grid.ac.vn slots=4
>
> Now for more processes:
> [guser1_at_ioitg2 examples]$ /opt/openmpi/bin/mpirun -np 6 --hostfile myhosts
> hello_cxx
> guser1_at_[hidden]'s password:
> --------------------------------------------------------------------------
> Failed to find the following executable:
>
> Host: node1.ioit-grid.ac.vn
> Executable: hello_cxx
>
> Cannot continue.
> --------------------------------------------------------------------------
> mpirun noticed that job rank 0 with PID 19164 on node
> ioitg2.ioit-grid.ac.vn exited on signal 15 (Terminated).
> 3 additional processes aborted (not shown)
> [guser1_at_ioitg2 examples]$
>
> This is error massage. I was login on node1 successful.
>
> PLS, Help me. What problems I have 9installation, configurations, ...).
> Have I install openmpi on all nodes ?
>
> Thank you very much and I am waitting your helps.
>
>
>
>
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