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Hi Rakesh,<br>
<br>
It sounds as though the compute node cannot see your workstation
across the network. This is a common situation. <br>
<br>
for debugging the issue see if you could follow these steps:<br>
<a class="moz-txt-link-freetext" href="http://paraview.org/Wiki/Reverse_connection_and_port_forwarding#A_Forward_Connection_Over_an_ssh_Tunnel">http://paraview.org/Wiki/Reverse_connection_and_port_forwarding#A_Forward_Connection_Over_an_ssh_Tunnel</a><br>
<br>
If that works you probably would like to automate the process using
a ParaView client side pvsc script to establish a reverse ssh tunnel
to the cluster's login node, which is presumably visible from the
compute nodes, and then tell the pv server to connect to this tunnel
in a server side startup script, which submits a batch job using a
batch script. I'm attaching an example from NERSC's Cray called
franklin, take a look and see if it helps.<br>
<br>
Burlen<br>
<br>
On 02/20/2012 08:53 AM, Rakesh Hammond wrote:
<blockquote
cite="mid:CAFYzz24CdoN_hpfdU2hkLzPyr8U-XQRE9X6uxG87-mVc7hMq7w@mail.gmail.com"
type="cite">
<div>Hi,</div>
<div> </div>
<div>I am trying to get ParaView-3.12.0 working on our
visualisation cluster. However I am getting errors such as the
following</div>
<div> </div>
<div>"Socket error in call to conect : Connection refused"</div>
<div> </div>
<div>As a bit of a background, I have ParaView-3.10.1 working in
client-server mode on the same cluster. On the server, we have
IntelMPI-4.0.1 and Slurm as the scheduler.</div>
<div> </div>
<div>I tried debugging the problem by printing stuff out in
vtkSocket.cxx file - I always get the message which says
"Connected" from slurm out file. The ParaView-3.12.0 client
then just hangs.</div>
<div> </div>
<div>I did get it to work by using a machinefile (ie outside
slurm) and it worked in client-server to my work station.</div>
<div> </div>
<div>I am not really sure what is the cause of this - my suspicion
is that this either to do with IntelMPI-4.0.1 and
ParaView-3.12.0 or with Slurm-2.1.4 (which is what is available
on the cluster).</div>
<div> </div>
<div>Can some one please give me some hints how I can debug this
further?</div>
<div> </div>
<div> </div>
<div>Any pointers are greately appreciated.</div>
<div> </div>
<div>Given my level of desperation, I tried with
Paraview-3.14.0-RC2 and things have really changed here - for
example, what happend to the PV_CLIENT_HOST variable? Is this no
longer set? </div>
<div>I also note that when you set up a profile to connect to the
server in reverse-connection mode, it no longer allows you to
specifiy host name - is this intentional?</div>
<div> </div>
<div>Regards,</div>
<div>Rakesh</div>
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