[vtkusers] Build VTK without OpenGL and with MPI

[Paul T. Bauman]

On Fri, Dec 9, 2016 at 12:06 PM, Bill Lorensen <bill.lorensen at gmail.com>
wrote:

> --  * vtkFiltersParallelDIY2, needed by VTK_Group_MPI.
> --  * vtkFiltersParallelGeometry, needed by VTK_Group_MPI.
> --  * vtkFiltersParallelMPI, needed by VTK_Group_MPI.
> --  * vtkIOMPIImage, needed by VTK_Group_MPI.
> --  * vtkIOMPIParallel, needed by VTK_Group_MPI.
> --  * vtkIOParallelNetCDF, needed by VTK_Group_MPI.
>
>
> vtkRenderingCore is needed by vtkFiltersParallel
> vtkFiltersParallel is needed by vtkFiltersParallelMPI
>

Thank you for pointing out this dependency. Since I only need, presumably,
the I/O portions of MPI and not the imaging, it is possible to enable only
those parts? Or is vtkFiltersParallelMPI not negotiable for any MPI
capabilities in VTK? I've just now tried

 cmake \
-DBUILD_SHARED_LIBS:BOOL=ON \
-DCMAKE_INSTALL_PREFIX:PATH=$VTK_DIR \
-DCMAKE_BUILD_TYPE:STRING=Release \
-DBUILD_EXAMPLES:BOOL=OFF \
-DBUILD_TESTING:BOOL=OFF \
-DVTK_BUILD_ALL_MODULES_FOR_TESTS:BOOL=OFF \
-DVTK_Group_Rendering:BOOL=OFF \
-DVTK_Group_StandAlone:BOOL=OFF \
-DModule_vtkCommonCore:BOOL=ON \
-DModule_vtkCommonDataModel:BOOL=ON \
-DModule_vtkIOMPIParallel:BOOL=ON \
$BUILDDIR/VTK-$VTK_VERSION

which gave me (extracting only the last few lines)

<begin>
-- Found MPI_C:
/femputer/pbauman/swstack/libs/mpich/3.1.4/gcc/6.2.0/lib/libmpi.so
-- Found MPI_CXX:
/femputer/pbauman/swstack/libs/mpich/3.1.4/gcc/6.2.0/lib/libmpicxx.so;/femputer/pbauman/swstack/libs/mpich/3.1.4/gcc/6.2.0/lib/libmpi.so

CMake Error at IO/MPIParallel/CMakeLists.txt:15 (vtk_add_override):
  Unknown CMake command "vtk_add_override".


-- Configuring incomplete, errors occurred!
See also
"/femputer/pbauman/swstack/builddir/vtk-VQfIYE/build/CMakeFiles/CMakeOutput.log".
See also
"/femputer/pbauman/swstack/builddir/vtk-VQfIYE/build/CMakeFiles/CMakeError.log".
</end>

Thanks again.


> On Fri, Dec 9, 2016 at 10:36 AM, Paul T. Bauman <ptbauman at gmail.com>
> wrote:
> > Greetings,
> >
> > I'm updating my build script for VTK. Ala the discussion in this thread,
> > http://public.kitware.com/pipermail/vtkusers/2016-December/097359.html I
> > would like to build VTK with MPI enabled. However, the (automated
> testing)
> > server I'm building VTK on does not have OpenGL on it (we're not doing
> > rendering or anything, just I/O of VTK formats for visualization using
> > ParaView). Previously, before needing MPI, the following CMake options
> got
> > the job done for me:
> >
> > cmake \
> > -DBUILD_SHARED_LIBS:BOOL=ON \
> > -DCMAKE_INSTALL_PREFIX:PATH=$VTK_DIR \
> > -DCMAKE_BUILD_TYPE:STRING=Release \
> > -DBUILD_EXAMPLES:BOOL=OFF \
> > -DBUILD_TESTING:BOOL=OFF \
> > -DVTK_BUILD_ALL_MODULES_FOR_TESTS:BOOL=OFF \
> > -DVTK_Group_Rendering:BOOL=OFF \
> > -DVTK_Group_StandAlone:BOOL=OFF \
> > -DModule_vtkCommonCore:BOOL=ON \
> > -DModule_vtkCommonDataModel:BOOL=ON \
> > $BUILDDIR/VTK-$VTK_VERSION
> >
> > However, if I now add -DVTK_Group_MPI:BOOL=ON, then it seems to re-enable
> > OpenGL in my CMake build script. Anyway to have both?
> >
> > Thanks for any suggestions.
> >
> > Best,
> >
> > Paul
> >
> > P.S. I'm a CMake newb, so I'm happy to be pointed to a command to list
> the
> > options I can specify to the cmake command to try and figure it out for
> > myself without having to bug the list, i.e. an analog to Autotools
> > `configure --help`.
> >
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>
>
> --
> Unpaid intern in BillsBasement at noware dot com
>
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