Markus:
> see also here for some comparison:
> http://www.cs.duke.edu/geo*/terraflow/speedup.html
it doesn't list GRASS version but from the Pentium III and March 2001
references I would expect that the version of r.watershed there was
from GRASS 5.0 and using the old color setting code which proved to be
a terrible bottleneck. The r.watershed in newer versions of GRASS can
be much much faster.
Hamish
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