Sir, Thank you very much for answering so quickly. I went with the first option and tried the Delete() statements again, but still keep getting errors, be it different ones. Specifically I have put the following four statements right after Render() in my code:
Delete(VoltParaviewMovie) Delete(AnimationScene1) Delete(RenderView1) Delete(DataRepresentation1) After executing I get the following error: Traceback (most recent call last): File "./RunParaviewMovieMaker.py", line 99, in <module> main() File "./RunParaviewMovieMaker.py", line 21, in main create_movie(filename3) File "./RunParaviewMovieMaker.py", line 91, in create_movie Delete(DataRepresentation1) File "/usr/lib/python2.7/dist-packages/paraview/simple.py", line 482, in Delete servermanager.UnRegister(proxy) File "/usr/lib/python2.7/dist-packages/paraview/servermanager.py", line 2764, in UnRegister raise RuntimeError, "UnRegistration error." RuntimeError: UnRegistration error. *** Error in `/usr/bin/python': corrupted double-linked list: 0x0000000004633310 *** Aborted (core dumped) Upon removing the last line, and just working with 3 Delete() statements, I also get an error, namely: Traceback (most recent call last): File "./RunParaviewMovieMaker.py", line 98, in <module> main() File "./RunParaviewMovieMaker.py", line 21, in main create_movie(filename3) File "./RunParaviewMovieMaker.py", line 44, in create_movie AnimationScene1 = GetAnimationScene() File "/usr/lib/python2.7/dist-packages/paraview/simple.py", line 794, in GetAnimationScene raise servermanager.MissingProxy, "Could not locate global AnimationScene." paraview.servermanager.MissingProxy: Could not locate global AnimationScene. *** Error in `/usr/bin/python': double free or corruption (!prev): 0x0000000002908e30 *** Aborted (core dumped) Do you have any idea on how to resolve these errors? I do especially not understand what the 'proxy' is doing in my errors. If not, I might opt for the second option with ImageMagick (although I would still prefer to resolve my current issues). With kind regards, Tim 2016-01-19 18:28 GMT+01:00 Tim Gallagher <tim.gallag...@gatech.edu>: > Your delete line is > > Delete(Animationscene1) > > but your variable is actually called AnimationScene1 (camel-case > lettering). Python is case-sensitive, so that's why you are getting the > error you are showing. > > That said, we do two things to loop over everything. We can Delete() every > object, but that can be tedious in complicated pipelines. Alternatively, we > have a driver script that executes pvpython on a trace script and passes in > a number to indicate which file should be rendered. Our trace script then > dumps a single PNG image and we stitch them together to make a movie > afterwards using ImageMagick. Since each image is rendered in an entirely > new instance of pvpython, there are no memory issues. An example driver > script is below. We've also made our driver script parallel so it splits > the range of data files into chunks for each processor, and then pvpython > is called multiple times in parallel to render the files. > > Tim > > import subprocess > > start = 0 > end = 100 > stride = 1 > > for n in range(start, end + 1, stride): > print "Working on file: ", n > subprocess.call(['/data4/pv4.1Install-OS/bin/pvpython', > 'jicf_trace.py', '%i' % (n)]) > > ------------------------------ > *From: *"Tim De Coster" <tim91decos...@gmail.com> > *To: *paraview@paraview.org > *Sent: *Tuesday, January 19, 2016 10:03:01 AM > *Subject: *[Paraview] Memory overload and I don't know what to delete > (despite looking in the archives) > > > Hi all, > > I am stuck with a problem regarding ParaView (version 4.0.1 64-bit), > running on Ubuntu 14.04. It seems that when I run a python script, my > memory gets overloaded. I looked already in the archives and it seems that > I need to delete some data using the command Delete(). When I try this > however, I get error messages saying that the things I want to delete are > not possible > ( File "./RunParaviewMovieMaker.py", line 89, in create_movie > Delete(Animationscene1) > NameError: global name 'Animationscene1' is not defined > *** Error in `/usr/bin/python': corrupted double-linked list: > 0x0000000002b52ca0 *** > ). > Let me first explain my problem in more detail: > > I have a lot of data that I generated with another script (about 3TB and > still increasing), but now I need to convert these data into movies. When I > run my loop over different folders, the first few movies are generated in > less than 30s each, but then gradually the time per movie starts increasing > and my memory gets overloaded. The script I am running is (which I simply > got from using the trace call for python in ParaView): > > #!/usr/bin/python > > from paraview.simple import * > > def main(): > > some huge for-loop generating names of maps where the .vtk files are > stored. In this for loop I use the command: > create_movie(filename3) > > def create_movie(mapname): > > vtkfolder = '.' > number_of_frames = 2000 > > vtknames = [] > for i in range (0, number_of_frames - 1): > vtknames.append('{1}/{2}/VoltParaviewMovie{0:0=4d}.vtk'.format(i, > vtkfolder, mapname)) > > VoltParaviewMovie = LegacyVTKReader(FileNames = vtknames) > > AnimationScene1 = GetAnimationScene() > AnimationScene1 = GetAnimationScene() > AnimationScene1.EndTime = 1999.0 > AnimationScene1.PlayMode = 'Snap To TimeSteps' > > AnimationScene1.EndTime = 1999.0 > AnimationScene1.PlayMode = 'Snap To TimeSteps' > > RenderView1 = GetRenderView() > a1_Voltage_PVLookupTable = GetLookupTableForArray( "Voltage", 1, > RGBPoints=[-85.52999877929688, 0.23, 0.299, 0.754, 50.0, 0.706, 0.016, > 0.15], VectorMode='Magnitude', NanColor=[0.25, 0.0, 0.0], > ColorSpace='Diverging', ScalarRangeInitialized=1.0, AllowDuplicateScalars=1 > ) > > a1_Voltage_PiecewiseFunction = CreatePiecewiseFunction( Points=[0.0, > 0.0, 0.5, 0.0, 1.0, 1.0, 0.5, 0.0] ) > > DataRepresentation1 = Show() > DataRepresentation1.EdgeColor = [0.0, 0.0, 0.5000076295109483] > DataRepresentation1.SelectionPointFieldDataArrayName = 'Voltage' > DataRepresentation1.ScalarOpacityFunction = > a1_Voltage_PiecewiseFunction > DataRepresentation1.ColorArrayName = ('POINT_DATA', 'Voltage') > DataRepresentation1.ScalarOpacityUnitDistance = 7.108580809929175 > DataRepresentation1.LookupTable = a1_Voltage_PVLookupTable > DataRepresentation1.Representation = 'Slice' > DataRepresentation1.ScaleFactor = 0.0 > > RenderView1.CameraFocalPoint = [63.5, 63.5, 0.0] > RenderView1.CameraPosition = [63.5, 63.5, 10000.0] > RenderView1.InteractionMode = '2D' > RenderView1.CenterOfRotation = [63.5, 63.5, 0.0] > > a1_Voltage_PVLookupTable.ScalarOpacityFunction = > a1_Voltage_PiecewiseFunction > > RenderView1.CameraPosition = [63.5, 63.5, 346.97045256124744] > RenderView1.CameraClippingRange = [343.50074803563496, > 352.1750093496662] > RenderView1.CameraParallelScale = 89.80256121069154 > > newmapname = '' > fragments = mapname.split('.') > for fragment in fragments: > newmapname +=fragment > > WriteAnimation('{0}/{1}.avi'.format(vtkfolder, newmapname), > Magnification=1, Quality=2, FrameRate=15.000000) > > Render() > > print('{0} has been produced.'.format(newmapname)) > > > if __name__ == '__main__': > main() > > Would any one of you be able to point out to me what I am doing wrong? Or > which objects/structures I should delete (in the archives the problem > always appeared to be that a writer needed to be deleted, but I don't have > such an object) such that I basically start over each time I create a new > movie and hence don't use that much memory? > > With kind regards, > Tim > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview > >
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview