MantisBT - ParaView
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IDProjectCategoryView StatusDate SubmittedLast Update
0015216ParaView(No Category)public2014-12-18 17:172015-08-11 14:40
ReporterAlan Scott 
Assigned ToUtkarsh Ayachit 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionno change required 
PlatformOSOS Version
Product Version4.2 
Target Version4.4Fixed in Version 
ProjectSandia
Topic Name
Typeperformance
Summary0015216: CGNS reader is dreadfully slow
DescriptionThe CGNS reader is painfully, reduculiously, dreadfully slow. It takes about 30 seconds to read the header for a toy dataset, and with this dataset the following line gets written out a few hundred times.

*** Warning:The file being read is more recent that the CGNS library used ***



Figure out what is going on, and fix it. Further, turn off the warning for production builds.

File available upon request. File name is aero3d.cgns.
Steps To Reproduce
Additional Information
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Issue History
Date ModifiedUsernameFieldChange
2014-12-18 17:17Alan ScottNew Issue
2015-03-13 18:13Alan ScottNote Added: 0034304
2015-03-13 18:13Alan ScottTarget Version => 4.4
2015-03-16 15:17Mickael PHILITNote Added: 0034312
2015-03-16 15:17Mickael PHILITNote Edited: 0034312bug_revision_view_page.php?bugnote_id=34312#r1037
2015-03-18 15:57Alan ScottNote Added: 0034316
2015-03-18 18:14Mickael PHILITNote Added: 0034317
2015-07-08 09:55Utkarsh AyachitNote Added: 0034695
2015-07-08 10:05Utkarsh AyachitNote Added: 0034696
2015-07-08 16:36Utkarsh AyachitStatusbacklog => todo
2015-08-05 21:41Utkarsh AyachitNote Added: 0034899
2015-08-05 21:41Utkarsh AyachitStatustodo => customer review
2015-08-05 21:41Utkarsh AyachitResolutionopen => fixed
2015-08-05 21:41Utkarsh AyachitAssigned To => Utkarsh Ayachit
2015-08-05 21:41Utkarsh AyachitResolutionfixed => no change required
2015-08-11 14:40Alan ScottNote Added: 0034957
2015-08-11 14:40Alan ScottStatuscustomer review => closed

Notes
(0034304)
Alan Scott   
2015-03-13 18:13   
I have a user that tried to use the CGNS, and found it to be unusable...
(0034312)
Mickael PHILIT   
2015-03-16 15:17   
It would be interesting to try with the CGNS plugin included in the master branch.
(0034316)
Alan Scott   
2015-03-18 15:57   
I just looked, and couldn't find a CGNS plugin. I looked in 4.3.1 Kitware windows, my own personal Linux 4.3.1 build, my personal Linux build of master, and looked in the Build/ Plugins directory. How do I get the CGNS plugin? Is there a magic CMake switch?
(0034317)
Mickael PHILIT   
2015-03-18 18:14   
The cmake switch is off by default. You may want to use the latest/current development master to get a working reader. (Until recently, it was available on the superbuild dashboard)
(0034695)
Utkarsh Ayachit   
2015-07-08 09:55   
Folks, the CGNS plugin was merged into ParaView proper a little while ago.
See:
https://gitlab.kitware.com/paraview/paraview/commit/f011a67942e7ff5a04e1ecbc98427b749fdb5002 [^]

So long as you build with CGNS support enabled, ParaView will indeed use the newer CGNS reader that Mickael contributed.
(0034696)
Utkarsh Ayachit   
2015-07-08 10:05   
Oh, btw, there's a new flag PARAVIEW_ENABLE_CGNS that you need to turn on to enable CGNS support in ParaView.
(0034899)
Utkarsh Ayachit   
2015-08-05 21:41   
Please reopen if the new CGNS implementation is still slow.
(0034957)
Alan Scott   
2015-08-11 14:40   
Much, much better.

Tested Kitware's nightly build from 8/10/2015. Windows. Local server.