Hi Peter,

I followed your steps in Paraview 4.2 (compiled under MacOS 10.10.3) and as you mentioned, i could see the pipeline in the pipeline browser. I also decrease to time step (from 100 to 3) to test the code. After finishing the time step loop the ParaView gives following error,

ERROR: In /Users/turuncu/Qsync/progs/paraview-4.2.0/src/VTK/Parallel/Core/vtkSocketCommunicator.cxx, line 735,vtkSocketCommunicator (0x7fd4837cd120): Could not send tag.

ERROR: In /Users/turuncu/Qsync/progs/paraview-4.2.0/src/VTK/Parallel/Core/vtkSocketCommunicator.cxx, line 812,vtkSocketCommunicator (0x7fd4837cd120): Could not receive tag. 8013

ERROR: In /Users/turuncu/Qsync/progs/paraview-4.2.0/src/VTK/Parallel/Core/vtkSocketCommunicator.cxx, line 812,vtkSocketCommunicator (0x7fd4837cd120): Could not receive tag. 1

ERROR: In /Users/turuncu/Qsync/progs/paraview-4.2.0/src/VTK/Parallel/Core/vtkSocketCommunicator.cxx, line 812,vtkSocketCommunicator (0x7fd483a02280): Could not receive tag. 1

In this case, the code is also compiled with ParaView 4.2. So, there is no any version issue.

By the way, it is necessary to add follow code to include section

#include <iostream>
#include <unistd.h>

to make cout, endl and sleep function available.

--ufuk

On 11/06/15 10:47, Peter wrote:

Hello,

I've made some progress, but its not the complete answer.

To make the Catalyst examples display in Paraview, you have to go Paraview>Catalyst>Connect AFTER the client has initialized Catalyst.
You also have to turn OFF the file write in the catalyst script.

Try the following changes (I tested CxxFullExample)

1) In FEDriver.cxx, after the call to FEAdaptor::Initialize() , add something like

 std::cout<<"Please connect in Paraview"<<endl;

sleep(20);

I also put a 'sleep(1)' into the timestep loop to give more time to manipulate paraview.

2) In feslicescript.py, you remove the calls to coprocessor.CreateWriter and change EnableLiveVisualization to True).

Now, the test sequence is:

1) start Paraview. DONT connect Catalyst.

2) run the CxxFullExample with (path)feslicecinema.py as argument .( To find out the exact command, go ctest --verbose)

3) When you see "Please connect in Paraview", in the Catalyst menu you go 'Connect' and dismiss the dialogs which follow.

You'll see some changes in the pipeline browser. Paraview can see some data but doesnt render it until after the end of the timestepping. Would you like to look at that?

Cheers

---
Peter Heppel
35/37 Rue de Locmalo
56290 Port-Louis
France
+33 6 81 30 76 52 cell
+33 2 97 82 19 30
USA  +1 773 280 8142
Skype: peterheppel

On 2015-06-10 22:54, Peter wrote:

Thanks for replying.  Take a look at

http://public.kitware.com/pipermail/paraview/2015-June/034283.html

Briefly,

Paraview segfaults with the above error message when I run any of the tests in ParaViewCatalystExampleCode-master with /coprocessor.EnableLiveVisualization(True). /They all pass when this flag is False. I've tested with V4.3.1 and with yesterday's development version. There's another user - *u.utku.turuncoglu at be.itu.edu.tr* u.utku.turuncoglu at be.itu.edu.tr <mailto:paraview%40paraview.org?Subject=Re%3A%20%5BParaview%5D%20pqPipelineSource%3A%3AgetOutputPort%28%200%20%29.%20Available%0A%20number%20of%20output%20ports%3A%200&In-Reply-To=%3C60384.88.235.36.106.1433760302.squirrel%40webmail.be.itu.edu.tr%3E>who has a similar problem on a different O/S.

Are the tests in ParaViewCatalystExampleCode-master known to run OK with /coprocessor.EnableLiveVisualization(True)? / Or is that not the only change needed to make these clients connect?

If we are running ParaViewCatalystExampleCode-master correctly we'd appreciate your advice on where to start looking for a bug.

best regards

Peter

---
Peter Heppel
35/37 Rue de Locmalo
56290 Port-Louis
France
+33 6 81 30 76 52 cell
+33 2 97 82 19 30
USA  +1 773 280 8142
Skype: peterheppel

On 2015-06-10 19:47, Utkarsh Ayachit wrote:

    I am not sure I follow what's happening here. Can you provide
    details on what you're doing here please? Thanks.
    Utkarsh

    On Wed, Jun 10, 2015 at 11:38 AM Peter <pe...@peterheppel.com
    <mailto:pe...@peterheppel.com>> wrote:

        Hello

        I just built the current Paraview development version and got
        the same error on running the Catalyst examples.

        Paraview declined the connection gracefully when the client
        was built with a different VTK version, so I suspect the
        issue isnt related to the socket handshake, but rather that
        it only occurs after the socket connection is successful.

        P

-- Peter Heppel
        35/37 Rue de Locmalo
        56290 Port-Louis
        France
        +33 6 81 30 76 52 cell
        +33 2 97 82 19 30
        USA  +1 773 280 8142
        Skype: peterheppel

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