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Hello,<br>
<br>
Really, I don't know if my question is for this mailing list... but
I will explain my problem and, then, you could answer me whatever
you think ;)<br>
<br>
I manage a SLURM clusters composed by 3 networks:<br>
<ul>
<li>a gigabit network used for NFS shares (192.168.11.X). In this
network, my nodes are "node01, node02..." in /etc/hosts.<br>
</li>
<li>a gigabit network used by SLURM (all my nodes are added to
SLURM cluster using this network and the hostname assigned via
/etc/host to this second network). (192.168.12.X). In this
network, my nodes are "clus01, clus02..." in /etc/hosts.</li>
<li>a Infiniband network (192.168.13.X). In this network, my nodes
are "infi01, infi02..." in /etc/hosts.</li>
</ul>
<p>When I submit a MPI job, SLURM scheduler offers me "n" nodes
called, for example, clus01 and clus02 and, there, my application
runs perfectly using second network for SLURM connectivity and
first network for NFS (and NIS) shares. By default, as SLURM
connectivity is on second network, my nodelist contains nodes
called "clus0x".</p>
However, now, I'm getting a "new" problem. I want to use third
network (Infiniband), but as SLURM offers me "clus0x" (second
network), my MPI application runs OK but using second network. This
problem also occurs, for example, using NAMD (Charmrun) application.
<br>
<br>
So, my questions are:<br>
<ol>
<li>is this SLURM configuration correct for using both networks? <br>
</li>
<ol>
<li>If answer is "no", how do I configure SLURM for my purpose?</li>
<li>But if answer is "yes", how can I ensure connections in my
SLURM job are going in Infiniband?</li>
</ol>
</ol>
<p>Thanks a lot!!<br>
</p>
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