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<body class='hmmessage'><div dir='ltr'><span style="color: rgb(68, 68, 68); font-family: Calibri; line-height: 22.7199993133545px; background-color: rgb(255, 255, 255);">So one of the reasons I have to use CDF-5 is that netcdf4 does not support large arrays (>2GiB), but CDF-5 does.</span><div style="line-height: 22.7199993133545px; color: rgb(68, 68, 68); font-family: Calibri; background-color: rgb(255, 255, 255);"><br style="line-height: 22.7199993133545px;"></div><div style="line-height: 22.7199993133545px; color: rgb(68, 68, 68); font-family: Calibri; background-color: rgb(255, 255, 255);">So I have a question: Is it possible to break a large file into netcdf4 files and write a parent wrapper around it and use that as input to paraview? What I mean is to write a pvti (or similar) parent file, that links smaller netcdf files together. Paraview recognizes netcdf4, so that should not be a problem.</div><div style="line-height: 22.7199993133545px; color: rgb(68, 68, 68); font-family: Calibri; background-color: rgb(255, 255, 255);"><br style="line-height: 22.7199993133545px;"></div><div style="line-height: 22.7199993133545px; color: rgb(68, 68, 68); font-family: Calibri; background-color: rgb(255, 255, 255);">If this works, then the size limitation of netcdf would not be a problem and I can avoid going the CDF-5 route.</div><br><div><hr id="stopSpelling">From: dave.demarle@kitware.com<br>Date: Mon, 6 Jul 2015 14:43:06 -0400<br>Subject: Re: [Paraview] PNetCDF 64 bit Error<br>To: u.utku.turuncoglu@be.itu.edu.tr<br>CC: amiramir12345@outlook.com; paraview@paraview.org<br><br><div dir="ltr"><br><div class="ecxgmail_extra"><div class="ecxgmail_quote"><blockquote class="ecxgmail_quote" style="border-left:1px #ccc solid;padding-left:1ex;">
distribution of ParaView. By the way, the NetCDF library used in the<br>
ParaView reader could only support NetCDF classic as default and you might<br>
need to install from source using NetCDF4 library.<br>
<br></blockquote><div><br></div><div>ParaView has supported netcdf4 since 3.14. 3.14.0 only through our internal libnetcdf/hdf; 3.14.1 added it through external too.</div><div><br></div><div>However, I do not know if anyone has used the pnetcdf variant. You may be the first Amir.</div><div><br></div><div>Can anyone else on the list comment on the status of pnetcdf support in ParaView?</div><div><br></div><div> <br></div><blockquote class="ecxgmail_quote" style="border-left:1px #ccc solid;padding-left:1ex;">
I hope it helps,<br>
Regards,<br>
<br>
--ufuk<br>
<span><br>
> A small pnetcdf file is attached.<br>
><br>
> The output of ncmpidump is the following:<br>
</span>> netcdf data_in {// file format: CDF-5 (big variables)dimensions: x = 4 ; y<br>
<span>> = 4 ; z = 4 ;variables: double data(x, y, z) ;<br>
> // global attributes: :CDF-5 mode = 1 ;data:<br>
> data = -1.83667601732677e-48, -1.49975978266186e-32, 0,<br>
> 1.49975978266186e-32, -1.49975978266186e-32, -1.22464679914735e-16, 0,<br>
> 1.22464679914735e-16, 0, 0, -0, -0, 1.49975978266186e-32,<br>
> 1.22464679914735e-16, -0, -1.22464679914735e-16, -1.49975978266186e-32,<br>
> -1.22464679914735e-16, 0, 1.22464679914735e-16, -1.22464679914735e-16,<br>
> -1, 0, 1, 0, 0, -0, -0, 1.22464679914735e-16, 1, -0, -1, 0, 0, -0, -0,<br>
> 0, 0, -0, -0, -0, -0, 0, 0, -0, -0, 0, 0, 1.49975978266186e-32,<br>
> 1.22464679914735e-16, -0, -1.22464679914735e-16, 1.22464679914735e-16,<br>
> 1, -0, -1, -0, -0, 0, 0, -1.22464679914735e-16, -1, 0, 1 ;}<br>
><br>
><br>
</span><span>> From: <a href="mailto:amiramir12345@outlook.com">amiramir12345@outlook.com</a><br>
> To: <a href="mailto:paraview@paraview.org">paraview@paraview.org</a><br>
> Subject: PNetCDF 64 bit Error<br>
> Date: Sun, 5 Jul 2015 16:33:49 -0500<br>
><br>
><br>
><br>
><br>
> I am getting an error when loading a NetCDF file that is written using<br>
> CDF-5 mode using pnetcdf library. This is the error output:<br>
><br>
><br>
> ERROR: In<br>
> /home1/01249/gda/modules/paraview/ParaView-v4.3.1-source/VTK/Common/ExecutionModel/vtkExecutive.cxx,<br>
</span>> line 784vtkPVCompositeDataPipeline (0x2aaab6364390): Algorithm<br>
<span>> vtkVisItMFIXCDFReader(0x2aaab635b0e0) returned failure for request:<br>
> vtkInformation (0x2aaab6263000) Debug: Off Modified Time: 885475<br>
> Reference Count: 1 Registered Events: (none) Request:<br>
> REQUEST_DATA_OBJECT ALGORITHM_AFTER_FORWARD: 1 FORWARD_DIRECTION: 0<br>
><br>
><br>
> When I run ncmpidump on the data file it shows the following:<br>
</span>> netcdf data_in {// file format: CDF-5 (big variables)dimensions: x =<br>
<span>> 1024; y = 1024 ; z = 1024 ;variables: double data(x, y, z) ;<br>
> // global attributes: :CDF-5 mode = 1 ;}<br>
><br>
> There is no problem if I create the file using the classical mode for a<br>
</span>> smaller dimension (<2^32), and I can load it into paraview.However, for<br>
<span>> large problems I have to enable CDF-5.<br>
><br>
> I am using paraview 4.3.1.<br>
><br>
</span>> _______________________________________________<br>
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