[Paraview] Paraview-3.12.0 Client-Server

[Burlen Loring]

Hi Rakesh,

It sounds as though the compute node cannot see your workstation across 
the network. This is a common situation.

for debugging the issue see if you could follow these steps:
http://paraview.org/Wiki/Reverse_connection_and_port_forwarding#A_Forward_Connection_Over_an_ssh_Tunnel

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.

Burlen

On 02/20/2012 08:53 AM, Rakesh Hammond wrote:
> Hi,
> I am trying to get ParaView-3.12.0 working on our visualisation 
> cluster.  However I am getting errors such as the following
> "Socket error in call to conect : Connection refused"
> 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.
> 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.
> I did get it to work by using a machinefile (ie outside slurm) and it 
> worked in client-server to my work station.
> 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).
> Can some one please give me some hints how I can debug this further?
> Any pointers are greately appreciated.
> 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?
> 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?
> Regards,
> Rakesh
>
>
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