[Paraview] non-interactive viz on cluster

[Kharche, Sanjay]

Dear David, All

I am now using VNC and got my scripts to do non-interactive viz, i.e.
making of png files using the script below. However, I have a question
regarding efficiency of the run.

As of now, I am doing a serial run. The first several png files are produced
swiftly. However, eventually, the run slows down considerably.
e.g. files 1 to 200 are at a rate of 10 per second
but files 300 to 35 are almost 1 every 2 minutes.#

Any ideas why this is, and how to rectify this? Isthis a memory leak and if so
how not do introduce this when making the .py script using the trace option
in the GUI?

cheers
Sanjay


line in pbs script:

# now any X11 traffic is sent to the VNC server.
pvbatch --use-offscreen-rendering sk3d.py &


my sk3d.py script:

try: paraview.simple
except: from paraview.simple import *
paraview.simple._DisableFirstRenderCameraReset()

for i in range (415,3998):
    RenderView1 = GetRenderView()
    HumanSAN000001_vtk = LegacyVTKReader( FileNames=['HumanSAN%06i.vtk' % (i)] )
    RenderView1.CenterAxesVisibility = 0
    RenderView1.OrientationAxesVisibility = 0
    RenderView1.Background2 = [0.0, 0.0, 0.16470588235294117]
    RenderView1.Background = [1.0, 1.0, 1.0]
    DataRepresentation1 = Show()
    DataRepresentation1.ScalarOpacityUnitDistance = 2.184824466829962
    DataRepresentation1.Representation = 'Outline'
    DataRepresentation1.EdgeColor = [0.0, 0.0, 0.5000076295109483]
    RenderView1.CenterOfRotation = [63.5, 63.5, 59.0]
    a1_voltage_PVLookupTable = GetLookupTableForArray( "voltage", 1, NanColor=[0.25, 0.0, 0.0], RGBPoints=[0.0, 0.23, 0.299, 0.754, 1.0, 0.7059976962405788, 0.016126465515202103, 0.15000112339188484], VectorMode='Magnitude', ColorSpace='Diverging', LockScalarRange=1 )
    a1_voltage_PiecewiseFunction = CreatePiecewiseFunction()
    RenderView1.CameraPosition = [63.5, -351.65487519135064, 59.0]
    RenderView1.CameraViewUp = [0.0, 0.0, 1.0]
    RenderView1.CameraFocalPoint = [63.5, 63.5, 59.0]
    RenderView1.CameraClippingRange = [284.63832643943715, 580.4496983192209]
    RenderView1.CameraParallelScale = 107.44998836668155
    DataRepresentation1.Representation = 'Volume'
    DataRepresentation1.ScalarOpacityFunction = a1_voltage_PiecewiseFunction
    DataRepresentation1.ColorArrayName = 'voltage'
    DataRepresentation1.LookupTable = a1_voltage_PVLookupTable
    Render()
    WriteImage("Endo_dir_%06i.png" % (i))
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