[Paraview] New HDF5 based reader

[Utkarsh Ayachit]

Hmm, looks like your plugin is linking against a system installed
HDF5. Did you change the ParaView to use the same? Otherwise ParaView
brings in its own version of HDF5 and the two can't work together. To
ensure that ParaView and your plugin uses the same HDF5, set the cmake
variable PARAVIEW_USE_SYSTEM_HDF5 to ON and then point CMake to the
installed hdf5.

Utkarsh

On Mon, Aug 9, 2010 at 11:59 AM, Reuter, Michael A. <reuterma at ornl.gov> wrote:
> Hi,
>
>
>
>                 I have been working at trying to get a NeXus
> (www.nexusformat.org) file read into ParaView. The NeXus format is HDF5
> based and this seems to be the source of the current problem that I’m
> encountering.  When I try to open a NeXus file via this call:
>
>
>
> NeXus::File *fh = new NeXus::File(filename, NXACC_READ);
>
>
>
> I get the backtrace that’s attached to this email. The lowest level frame is
> given here:
>
>
>
> Program received signal SIGSEGV, Segmentation fault.
>
> 0x00007fffd7a3da8b in H5FL_reg_malloc () from /usr/lib/libhdf5.so.6
>
> (gdb) bt
>
> #0  0x00007fffd7a3da8b in H5FL_reg_malloc () from /usr/lib/libhdf5.so.6
>
> …
>
>
>
> At first, this looked like an issue with the system HDF5 libraries, but I
> can put the above line into a standalone program, link it against the same
> libraries and I can open a file without any errors. I have searched the list
> archive for any enlightenment, but I didn’t find this particular problem. Is
> there anything special about using HDF5 libraries in ParaView plugins that I
> missed in the documentation? I am running on Ubuntu 10.04 using the provided
> HDF5 libraries and I have compiled and linked the NeXus libraries against
> the same HDF5 libraries.
>
>
>
> I know about Xdmf and have tried that with success, but I do not want to go
> down the two file route, so I’d really like to get this reader working. I
> can provide more detailed information (like plugin source code, sample file
> etc.) to anyone who can help, but I don’t want to spam the entire list with
> it right off the bat.
>
>
>
> Thanks,
>
> Michael
>
> -------------------------------------------
>
> Michael Reuter
>
> Scientific Data Analysis Group
>
> Neutron Scattering Science Division
>
> Oak Ridge National Laboratory
>
>
>
>
>
>
>
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