Hello,
I have some more questions.
How do I connect to the remote server using pvpython from command line? All the
online instructions have this example:
servermanger.Connect("amber")
What is amber? I tried replacing it by the IP of my pvserver, the
server name etc. but nothing seems to be working.
While connecting to my pvserver from the GUI, when I try to use the "-display"
flag as mentioned on this page using the following command on my remote machine:
"/usr/lib64/openmpi/1.4-gcc/bin//mpirun -np 1
/usr/local/bin//pvserver -rc -ch=133.6.71.88 --server-port=11111 -display:0.0"
It doesn't work giving me the following error:
"Got unknown argument: -display:0.0".
Is this related to OSMesa? I still haven't installed PV with
OSMesa support.
I am not able to reproduce this error all the time. But often, while I am
working on my local client GUI connected to the pvserver, sometimes PV stops
communicating to the server giving the following errors in the terminal:
--------------------------------------------------------------------------------------------------------------------------------------
ERROR: In
/Users/pradeep/softwares/ParaView/VTK/Common/System/vtkSocket.cxx,
line 572 vtkClientSocket (0x7fd0fcc3ef60): Socket error in call to
send. Broken pipe.
ERROR: In
/Users/pradeep/softwares/ParaView/VTK/Parallel/Core/vtkSocketCommunicator.cxx,
line 735
vtkSocketCommunicator (0x7fd0fcc366f0): Could not send tag.
ERROR: In
/Users/pradeep/softwares/ParaView/VTK/Parallel/Core/vtkSocketCommunicator.cxx,
line 812
vtkSocketCommunicator (0x7fd0fcc366f0): Could not receive tag.
41232
ERROR: In
/Users/pradeep/softwares/ParaView/VTK/Common/System/vtkSocket.cxx, line 572
vtkClientSocket (0x7fd0fcc3ef60): Socket error in call to send.
Broken pipe.
--------------------------------------------------------------------------------------------------------------------------------------
Right now this is happening quite randomly and I am not able to
trace what exactly am I doing to cause this error.
Thanks,
Pradeep
On 31 janv. 2013, at 10:27, Pradeep Jha <[email protected]> wrote:
> Thanks a lot for your detailed response Burlen.
>
>
> 2013/1/31 Burlen Loring <[email protected]>
>>
>> Presently, I have PV 3.98 installed from source with MPI support on my local
>> Mac and a remote Linux machine. I ran the pvsc file that you sent from my
>> local Mac but I was not sure what goes in the input for "MPI Root" and
>> "ParaView Root". I left those two fields blank and tried to connect and gave
>> me the following error:
> Sorry if that wasn't clear. for example if you have mpi installed in
> "/op/mpi/mpich/1.4.1" then you put that for "MPI Root". Likewise if you have
> your PV build at "/home/pradeep/ParaView/3.98.0" you put that.
>
>
> On 01/30/2013 01:40 AM, Pradeep Jha wrote:
>> Hello Burlen,
>>
>> thanks for the detailed response. I am still not able to get it work and
>> somethings are still not clear to me. I want to ask some very fundamental
>> questions as this is my first time trying to set up a something over the
>> networks myself and the online instructions are a bit too technical for me.
>>
>> Presently, I have PV 3.98 installed from source with MPI support on my local
>> Mac and a remote Linux machine. I ran the pvsc file that you sent from my
>> local Mac but I was not sure what goes in the input for "MPI Root" and
>> "ParaView Root". I left those two fields blank and tried to connect and gave
>> me the following error:
>>
>> ------------------------------------------------------------------------
>> pradeep@laptop subset]$MPI_NP=4
>> MPI_ROOT=
>> PV_ROOT=
>> PV_SERVER_PORT=11111
>> REMOTE_USER=pradeep
>> SERVER_HOST=83.shin.fluid.cse.nagoya-u.ac.jp
>> SSH_PATH=/usr/bin/ssh
>> XTERM_PATH=/usr/bin/xterm
>> Accepting connection(s): laptop.local:11111
>> Server launch command is : /usr/bin/xterm -T "ParaView Server
>> [email protected]:11111" -e /usr/bin/ssh -t -R
>> 11111:localhost:11111 [email protected] DISPLAY=:0
>> xhost + ; LD_LIBRARY_PATH=/lib:/lib/paraview-3.98/:LD_LIBRARY_PATH
>> DISPLAY=:0 /bin/mpirun -np 4 /bin/pvserver --reverse-connection
>> --server-port=11111 --client-host=localhost
>> The process failed to start. Either the invoked program is missing, or you
>> may have insufficient permissions to invoke the program.
>> Server launch timed out.
>> ---------------------------------------------------------------------------
>>
>> Here are my questions:
>> How do I get the above thing working?
>> What did you mean by "Production setting"?
>> I am right now testing PV on small test cases over machines (my Mac and the
>> remote Linux) which have both graphics hardware. For such a case why do I
>> need "reverse connection"? Should I always use "reverse connection"?
>> I don't understand when I initiate a pvserver on the remote Linux machine
>> and try to connect it from local Mac, why doesn't it ask for a password?
>> My understanding is that when I get this connection going, all my data
>> should be on the server. I simply use the local Mac GUI and I should be able
>> to visualize and browse through data at the remote end. Is that correct?
>> When I am at lab, I have a static IP for my Mac and I can log into it from
>> other computers. But I cannot access my Mac from outside when I am not in
>> the lab. Does this mean I cannot use pvserver outside the lab? Or is this
>> link is talking about this problem?
>> Once I manage to understand and get it working, I want to use PV using a
>> supercomputing facility. On the supercomputing facility I can install PV on
>> my login node (which has 64 processors) but not on the supercomputing
>> cluster. If I want to use the cluster (which has around 50,000 processors)
>> to visualize a big
>> data (around 800GB if possible), will installing Paraview with MPI support
>> on the login node, which is accesible by the cluster, be sufficient?
>>
>> I guess these questions are extremely basic but I am responsible for
>> figuring this whole thing out myself and with not much direct experience in
>> networking. So it is troubling me a bit.
>>
>> Hoping to hear from you,
>> Pradeep
>>
>>
>> 2013/1/30 Burlen Loring <[email protected]>
>> Hi Pradeep,
>>
>>
>> vtkClientSocket (0x7fc9ae108cb0): Socket error in call to connect.
>> Permission denied.
>>
>> Your connection is being blocked somewhere in between your compute node and
>> workstation. there are various configuration setting on either/both client
>> and server that could cause it. Fortunately we do not need to change any of
>> these settings , many of which require root access and potentially open
>> security vulnerabilities. Instead, you will use an ssh tunnel and a server
>> config (pvsc) tailored to your situation to automate the process.
>>
>> I'm attaching a minimal pvsc that illustrates how one might configure a
>> reverse connection to a server with graphics hardware. This pvsc is for
>> illustration only, don't use in a production setting! There are number of
>> liberties I've taken, for example I assume that X11 is already running, and
>> I use "xhost +"(very very bad) to enable pvserver to access gpu's. Normally
>> I would put all of the server side stuff in a shell script. I didn't do that
>> here to keep things simple for you. I hope you can use this to understand
>> how PV works.
>>
>>
>> 1) I connect to the CentOS machine using "ssh -X machinename".
>> Don't do that. With -X forwarding you won't be taking advantage of your
>> cluster's graphics hardware.
>>
>> Hope this helps
>> Burlen
>>
>>
>> On 01/29/2013 06:41 AM, Utkarsh Ayachit wrote:
>> Doesn't look like your client machine can connect to the server
>> machine. From the client machine try:
>>
>> ping 83.shin.fluid.cse.nagoya-u.ac.jp
>> telnet 83.shin.fluid.cse.nagoya-u.ac.jp 11111
>>
>>
>> On Tue, Jan 29, 2013 at 4:58 AM, Pradeep Jha
>> <[email protected]> wrote:
>> Hello,
>>
>> I have installed Paraview 3.98 on my Desktop (Mac OSX 10.8) and a remote
>> machine running CentOS 5.4. The CentOS machine has rendering hardware so I
>> havent installed PV with OSMesa support.
>>
>> I can login to the CentOS from my Mac using SSH and vice versa.
>>
>> Here is how I am trying to connect:
>>
>> 1) I connect to the CentOS machine using "ssh -X machinename". When I start
>> the "pvserver" on the CentOS the output is:
>> -------------------------------------------------------------------
>> [pradeep@83 ~]$pvserver
>> Waiting for client...
>> Connection URL: cs://83.shin.fluid.cse.nagoya-u.ac.jp:11111
>> Accepting connection(s): 83.shin.fluid.cse.nagoya-u.ac.jp:11111
>> -------------------------------------------------------------------
>>
>> 2) Then I add this information in the paraview I am running on my Mac as
>> shown in the attached image file.
>>
>> 3) I click on connect.
>>
>> I get the following error:
>> ------------------------------------------------------------------------
>> ERROR: In /Users/pradeep/softwares/ParaView/VTK/Common/System/vtkSocket.cxx,
>> line 481
>> vtkClientSocket (0x7fc9ae108cb0): Socket error in call to connect.
>> Permission denied.
>> -----------------------------------------------------------------------
>>
>> I dont have any expertise in networking and so I dont know much about
>> firewalls of my systems here nor do any my colleagues do.
>>
>> Thanks in advance,
>> Pradeep
>>
>>
>>
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>
>
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>
> Visit other Kitware open-source projects at
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