[Paraview] MPI Socket in use

Tue Apr 17 04:27:11 EDT 2012

Hi!

Some time ago I tried to built ParaView with MPI and noticed that even if variables 
MPI_{CXX,C}_COMPILER pointed to the right compilers (mpicxx and mpicc respectively), the 
compilers from CMAKE_{CXX,C}_COMPILER variables were used (g++ and gcc).

Try turning on CMAKE_VERBOSE_MAKEFILE and look what exactly happens.

P.S. What is the difference between MPI_{CXX,C}_COMPILER and CMAKE_{CXX,C}_COMPILER 
variables?

On Tue April 17 2012 08:26:37 Adam Dershowitz, Ph.D., P.E. wrote:
> I am sure that I use ccmake and changed PARAVIEW_USE_MPI to ON, (I also
> enabled python and pointed to the open mpi compiler, so that it then
> filled in most of the variables for MPI, as the note explains).  Then I
> did configure and generate.  Finally I did make, and sudo make install. 
> All seemed to work fine, and paraview runs fine, with a single processor.
> I even went so far and to make a new, empty directory, and rebuilt it
> there.  With the same results. I have also tried to explicitly put in the
> correct path, just to make sure that there isn't some other pvserver
> around: mpirun -np 3 /home/dersh/projects/ParaView-bin/bin/pvserver
> with exactly the same results.
> I have gone back, and now I see that MPIEXEC_MAX_NUMPROCS and
> VTK_MPI_MAX_NUMPROCS are set to 2.  But, I get the same error if I try to
> run it with -np 2, so clearly just using MPI is failing.  A
> 
> I realized that the problem is consistent with it not being built with MPI,
> but I definitely set it on.  Are there some other variables that have to
> be set?  Clearly something is not being built correctly, but I am not sure
> what it is.
> 
> Thanks,
> 
> --Adam
> 
> On Apr 16, 2012, at 7:09 PM, Utkarsh Ayachit wrote:
> > You may want to verify PARAVIEW_USE_MPI flag again and ensure that the
> > pvserver you're running is indeed the one that has PARAVIEW_USE_MPI
> > set to ON. The problem you're seeing is typical when ParaView not
> > built with MPI.
> > 
> > Utkarsh
> > 
> > On Mon, Apr 16, 2012 at 8:10 PM, Adam Dershowitz
> > 
> > <adershowitz at exponent.com> wrote:
> >> I just built paraview on an opensuse linux box.  When I use the GUI, and
> >> a single connection it seems to work fine.  But, if I try to use
> >> multiple CPUs, or run with mpi, it fails.
> >> I do have OpenMPI installed.
> >> When I first started getting the error, I googled around some and found
> >> that maybe "make install" would help (I had been running it just in the
> >> build directory).  But I am getting the same error after installing.  I
> >> also added my openmpi libraries to LD_LIBRARY_PATH (when I first tried
> >> to run it I had other errors about a shared library).
> >> 
> >> I did build with PARAVIEW_USE_MPI set to on.  It looks as though one
> >> pvserver will run, but any additional ones finds a port in use.  Clearly
> >> something is not right about how MPI is being handled, but I am not sure
> >> how to fix it.
> >> 
> >> 
> >> If I try mpirun, here is error I get:
> >> 
> >> 
> >> mpiexec -np 3  pvserver
> >> Waiting for client...
> >> Connection URL: cs://cfd:11111
> >> Accepting connection(s): cfd:11111
> >> Waiting for client...
> >> Connection URL: cs://cfd:11111
> >> ERROR: In
> >> /home/dersh/projects/ParaView-3.14.1-Source/VTK/Common/vtkSocket.cxx,
> >> line 206
> >> vtkServerSocket (0xebd970): Socket error in call to bind. Address
> >> already in use.
> >> 
> >> ERROR: In
> >> /home/dersh/projects/ParaView-3.14.1-Source/ParaViewCore/ClientServerCor
> >> e/vtkTCPNetworkAccessManager.cxx, line 343
> >> vtkTCPNetworkAccessManager (0x661800): Failed to set up server socket.
> >> 
> >> Exiting...
> >> Waiting for client...
> >> Connection URL: cs://cfd:11111
> >> ERROR: In
> >> /home/dersh/projects/ParaView-3.14.1-Source/VTK/Common/vtkSocket.cxx,
> >> line 206
> >> vtkServerSocket (0xebd970): Socket error in call to bind. Address
> >> already in use.
> >> 
> >> ERROR: In
> >> /home/dersh/projects/ParaView-3.14.1-Source/ParaViewCore/ClientServerCor
> >> e/vtkTCPNetworkAccessManager.cxx, line 343
> >> vtkTCPNetworkAccessManager (0x661800): Failed to set up server socket.
> >> 
> >> Exiting...
> >> ------------------------------------------------------------------------
> >> ----- It seems that [at least] one of the processes that was started
> >> with mpirun did not invoke MPI_INIT before quitting (it is possible
> >> that more than one process did not invoke MPI_INIT -- mpirun was only
> >> notified of the first one, which was on node n0).
> >> 
> >> mpirun can *only* be used with MPI programs (i.e., programs that
> >> invoke MPI_INIT and MPI_FINALIZE).  You can use the "lamexec" program
> >> to run non-MPI programs over the lambooted nodes.
> >> ------------------------------------------------------------------------
> >> ----- mpirun failed with exit status 252
> >> 
> >> And suggestions would be greatly appreciated.
> >> 
> >> thanks,
> >> 
> >> --Adam
> >> 
> >> 
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-----|-
Gena.