[vtkusers] speed

Thomas Wolfanger t.wolfanger at tlt.de
Wed Aug 2 11:55:36 EDT 2000


Hello all,

I have some questions concerning speed of execution of vtk. Since I´m
not very familiar with vtk programmin, I´m using the VisuSimple scripts
by R. Riviere and R. Becker written in tcl. 
I have a cfd simulation file with about 220000 points in an unstructured grid
and the same number of points for each result variable (velocity vector,
pressure, density).
Trying to look at the grid alone takes about half an hour to load the data and
create the image on an 700 MHz Athlon running Linux. Once created, rotating,
zooming etc. work quiet well and fast.
Reading variables takes a much more longer time (I´ve waited for about 2 hours,
but nothing happened yet...). I´m using an ASCII dataset, because I´m not able
to output in binary form. Could this be the reason for the poor performance?
Otherwise, are there any calculations going on (extrapolation of data?) and is
it possible to find out where the program is spending the time ?
Sorry if the questions appear too diffuse,

Mit freundlichen Grüßen / Best regards

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#                     Thomas Wolfanger                       #
#                  Turbo-Lufttechnik GmbH                    #
#                    t.wolfanger at tlt.de                      #
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