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Subject: Re: [OMPI users] openmpi 1.3.1: bind() failed: Permission denied (13)
From: Jerome BENOIT (ml.jgmbenoit_at_[hidden])
Date: 2009-04-02 16:23:24


Hi !

Dirk Eddelbuettel wrote:
> On 3 April 2009 at 03:33, Jerome BENOIT wrote:
> | The above submission works the same on my clusters.
> | But in fact, my issue involve interconnection between the nodes of the clusters:
> | in the above examples involve no connection between nodes.
> |
> | My cluster is a cluster of quadcore computers:
> | if in the sbatch script
> |
> | #SBATCH --nodes=7
> | #SBATCH --ntasks=15
> |
> | is replaced by
> |
> | #SBATCH --nodes=1
> | #SBATCH --ntasks=4
> |
> | everything is fine as no interconnection is involved.
> |
> | Can you test the inconnection part of the story ?
>
> Again, think about in terms of layers. You have a problem with slurm on top
> of Open MPI.

>
> So before blaming Open MPI, I would try something like this:
>
> ~$ orterun -np 2 -H abc,xyz /tmp/jerome_hw
> Hello world! I am 1 of 2 and my name is `abc'
> Hello world! I am 0 of 2 and my name is `xyz'
> ~$

I got it: I am very new with openmpi.
It is working with each nodes except one (`green'):
I have to blame my cluster.

I will try to fix it soon.

Thanks you very much for you help,
Jerome

>
> ie whether the simple MPI example can be launched successfully on two nodes or not.
>
> Dirk
>