Transparency slowdown or hang
We have a slowdown that is occuring with rendering large datasets that is so bad it appears as a hang. I think I replicated with Wavelet, but will give both ways to replicate. Note user's dataset is about 60 million cells and around a thousand files.
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ParaView 5.4.1. 4 nodes, 16 cores/node. Linux.
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View/ Memory Inspector.
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Load /.../fullV27_41.e.1440.*. Turn on mesh_displacement and velocity.
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Slice filter. Y Normal. Apply.
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Paint by velocity.
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Opacity to 0.5
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Unselect Show Plane
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It hung right here.
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With 8 nodes, I believe I have to go further, as follows:
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Change focus in pipeline browser to reader.
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Slice filter. Y Normal. Apply
I believe I have replicated this "hang" with wavelet, although it does eventually come back. Here is how to replicate.
- ParaView 5.4.1. 4 nodes, 16 cores/node on Chama. Linux.
- View/ Memory Inspector. (This pushes memory, but does work.)
- Wavelet. -1000 to 1000, -1000 to 1000, -1000 to 1000. Apply.
- Contour. Advanced. Remove the one contour. Auto generate 10. Apply.
- Surface.
- Change Opacity to 0.5
ParaView will take a few minutes to return.
Here are the important sections of the Timer Log.
Still Render, 59.8325 seconds
Regenerate Kd-Tree, 25.767 seconds
Redistributing Data for Ordered Compositing, 22.0742 seconds
OpenGL Dev Render, 11.9433 seconds
ICET_COMPOSITE_TIME, 0.28406 seconds (inserted time)
ICET_BLEND_TIME, 0.000199 seconds (inserted time)
ICET_COMPRESS_TIME, 0.000244 seconds (inserted time)
ICET_COLLECT_TIME, 0.003644 seconds (inserted time)
ICET_RENDER_TIME, 5.44064 seconds (inserted time)
ICET_BUFFER_READ_TIME, 0 seconds (inserted time)
ICET_BUFFER_WRITE_TIME, 0 seconds (inserted time)
OpenGL Dev Render, 0.035161 seconds
RenderView::UpdateLOD, 0.470804 seconds
Interactive Render, 1.29827 seconds
Redistributing Data for Ordered Compositing, 0.459089 seconds
OpenGL Dev Render, 0.810583 seconds
ICET_COMPOSITE_TIME, 0.131124 seconds (inserted time)
ICET_BLEND_TIME, 7e-05 seconds (inserted time)
ICET_COMPRESS_TIME, 6.5e-05 seconds (inserted time)
ICET_COLLECT_TIME, 0.025373 seconds (inserted time)
ICET_RENDER_TIME, 0.374703 seconds (inserted time)
ICET_BUFFER_READ_TIME, 0 seconds (inserted time)
ICET_BUFFER_WRITE_TIME, 0 seconds (inserted time)
OpenGL Dev Render, 0.013338 seconds
Still Render, 5.59564 seconds
OpenGL Dev Render, 5.55958 seconds
ICET_COMPOSITE_TIME, 0.268118 seconds (inserted time)
ICET_BLEND_TIME, 0.00019 seconds (inserted time)
ICET_COMPRESS_TIME, 0.000191 seconds (inserted time)
ICET_COLLECT_TIME, 0.004323 seconds (inserted time)
ICET_RENDER_TIME, 5.29006 seconds (inserted time)
ICET_BUFFER_READ_TIME, 0 seconds (inserted time)