[Paraview] Performance of the CGNS Reader

[Richard GRENON]

Hello.

I am testing the CGNS reader of Paraview 4.0.1 64 bits running on a 
Linux Workstation having 4 CPUs and 5.8 Gbytes of memory. Paraview was 
installed from the binaries available on the download page.

I am trying to load a 1.36 Gbytes CGNS file that is available through 
the network.

While loading this file, the Paraview Windows is frozen and cannot be 
refreshed, and I must check with the "ps" command on a terminal window 
or with a system monitor if PV  is still running or if it is really 
frozen. A progress bar for all readers would be welcome in a next release.

Finally, the file can be loaded, but it always takes about 15 mn (+ or - 
1 mn depending of the load of the network), while Tecplot always loads 
the same file within less that 1 mn !

How do you explain this poor performance of the CGNS reader ? Can it be 
improved, or am I missing something ? Is there some Paraview option that 
could reduce loading time of large files ?

Best regards

-- 
  Richard GRENON
  ONERA
  Departement d'Aerodynamique Appliquee - DAAP/ACI
  8 rue des Vertugadins
  92190 MEUDON - FRANCE
  phone : +33 1 46 73 42 17
  fax   : +33 1 46 73 41 46
  mailto:Richard.Grenon at onera.fr
  http://www.onera.fr