[Paraview] [EXTERNAL] pvserver MPI issue

Mon Oct 16 13:27:37 EDT 2017

Again Quentin, which "mpiexec" program are you using?
The parallel PVServer is supposed to open just one socket to accept
client's connection. Otherwise it just means that the MPI context is not
correctly setup.
It occures if PVServer has not been built with MPI support OR you do not
use the mpiexec that correspond to the MPI library used to compile PV.

Joachim

*Joachim Pouderoux*, PhD

*Technical Expert - Scientific Computing Team*
*Kitware SAS <http://www.kitware.fr>*

2017-10-16 13:23 GMT-04:00 Quentin d'Avout <quentin at arrivo-loop.com>:

> Hi Joachim,
>
>
>
> I’m running:
>
> mpirun -np 32 pvserver --server-port=%PV_SERVER_PORT%
>
> per paraView’s website. Launching the pvserver is not the issue,
> connecting to it in the paraview GUI is.
>
> Thanks.
>
>
>
>
>
> *From:* Joachim Pouderoux [mailto:joachim.pouderoux at kitware.com]
> *Sent:* Monday, October 16, 2017 10:08 AM
> *To:* Quentin d'Avout <quentin at arrivo-loop.com>
> *Cc:* Utkarsh Ayachit <utkarsh.ayachit at kitware.com>; ParaView <
> paraview at paraview.org>
>
> *Subject:* Re: [Paraview] [EXTERNAL] pvserver MPI issue
>
>
>
> Quentin,
>
> Which `mpiexec` command are you using?
>
> You have to use the one provided with paraview, not the one of your system
> which might be incompatible.
>
> Best,
>
> Joachim
>
>
> *Joachim Pouderoux*, PhD
>
> *Technical Expert - Scientific Computing Team*
> *Kitware SAS <http://www.kitware.fr>*
>
>
>
> 2017-10-16 13:03 GMT-04:00 Quentin d'Avout <quentin at arrivo-loop.com>:
>
> Hi Utkarsh,
>
> I did not recompile paraView myself, and using version
> ParaView-5.0.1-Qt4-OpenGL2-MPI-Linux-64bit
>
> I assumed that because the D3 fitler is available and that the about menus
> is stating "MPI enabled", this version was MPI enabled. Am I wrong tho?
>
> [image: Inline image 1]
>
> Thanks
>
> Quentin
>
>
>
> On Sat, Oct 14, 2017 at 5:23 PM, Utkarsh Ayachit <
> utkarsh.ayachit at kitware.com> wrote:
>
> Quentin,
>
>
>
> Each pvserver rank trying to connect the same socket is the classic
> symptom of paraview not build with MPI. Mind attaching your CMakeCache.txt?
>
>
>
> Utkarsh
>
>
>
> On Sat, Oct 14, 2017 at 8:05 PM, Quentin d'Avout <quentin at arrivo-loop.com>
> wrote:
>
> Thanks Utkarsh.
>
> Yes, I’ve checked both.
>
>
>
> Quentin d’Avout | Aerodynamics
>
> [image: Arrivo Loop] <http://www.arrivo-loop.com/>
>
>
>
> *From:* Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
> *Sent:* Saturday, October 14, 2017 4:55 PM
> *To:* Quentin d'Avout <quentin at arrivo-loop.com>
> *Cc:* Scott, W Alan <wascott at sandia.gov>; ParaView <paraview at paraview.org>
> *Subject:* Re: [Paraview] [EXTERNAL] pvserver MPI issue
>
>
>
> Are you sure you ParaView is built with MPI support enabled? If so, are
> you sure you're using the correct mpirun executable that goes with the MPI
> implementation you used to build ParaView?
>
>
>
> Utkarsh
>
>
>
> On Sat, Oct 14, 2017 at 2:49 PM, Quentin d'Avout <quentin at arrivo-loop.com>
> wrote:
>
> Actually, it turns out that you have to specifically tell pvserver to use
> different ports for every process:
>
>
>
> mpirun -np 32 pvserver --server-port=%PV_SERVER_PORT%
>
>
>
> But I’m now having issues connecting to all of these processes from the
> paraView GUI/connect window. Can’t seem to be able to specify more than one
> port at once…
>
>
>
> Anybody knows the trick?
>
> Thanks again
>
>
>
> *From:* Scott, W Alan [mailto:wascott at sandia.gov]
> *Sent:* Friday, October 13, 2017 6:40 PM
>
>
> *To:* Quentin d'Avout <quentin at arrivo-loop.com>; paraview at paraview.org
> *Subject:* Re: [EXTERNAL] [Paraview] pvserver MPI issue
>
>
>
> All I have is back to the firewall?
>
>
>
> *From: *Quentin d'Avout <quentin at arrivo-loop.com>
> *Date: *Friday, October 13, 2017 at 4:39 PM
> *To: *W Scott <wascott at sandia.gov>, "paraview at paraview.org" <
> paraview at paraview.org>
> *Subject: *RE: [EXTERNAL] [Paraview] pvserver MPI issue
>
>
>
> Thanks Scott.
>
> Didn’t do the trick tho.
>
> Other ideas?
>
>
>
> *From:* Scott, W Alan [mailto:wascott at sandia.gov]
> *Sent:* Friday, October 13, 2017 2:15 PM
> *To:* Quentin d'Avout <quentin at arrivo-loop.com>; paraview at paraview.org
> *Subject:* Re: [EXTERNAL] [Paraview] pvserver MPI issue
>
>
>
> Not saying I’m right here, but it looks like multiple versions of ParaView
> are tying up the socket.  Do a ps -ef on paraview, client side, and kill
> them.  Do the same on the server side.  Then, try again.
>
>
>
> Alan
>
>
>
> *From: *ParaView <paraview-bounces at paraview.org> on behalf of Quentin
> d'Avout <quentin at arrivo-loop.com>
> *Date: *Friday, October 13, 2017 at 3:10 PM
> *To: *"paraview at paraview.org" <paraview at paraview.org>
> *Subject: *[EXTERNAL] [Paraview] pvserver MPI issue
>
>
>
> Hi All,
>
>
>
> my issue is when I hit:
>
>
>
> mpirun -np 32 pvserver # with or without --mpi option
>
>
>
> I get :"vtkServerSocket (0x23fb3e0): Socket error in call to bind. Address
> already in use."
>
> and: "vtkTCPNetworkAccessManager (0x1879510): Failed to set up server
> socket."
>
>
>
> as if my paraView was compiled with the mpi capability off. But it is on
> (D3 filter available, "about" windows also says so).
>
>
>
> pvserver in serial works just fine.
>
> Could have been the ufw firewall blocking connections, but it is disabled.
>
> Ubuntu 17.04.
>
>
>
> Thanks in advance for your help.
>
> Quentin
>
>
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