[GRASSLIST:2036] Re: r.watersheds runs interminably?

[Hamish]

> I noticed a posting on the list about r.watersheds running
> interminably at the 5th (closing maps) stage. Has this issue been
> resolved? I am wondering whether I should expect my watersheds process
> to finish or not.


src/raster/r.watershed/README:
r.watershed apparently does not scale well to large raster map
sizes.

Estimated complete time:
complete = 0.43 (cpu minutes) ^ 0.52


but stalling at 99% complete isn't encouraging.


If anyone has access to some computer science students that need a
project to work on, or otherwise feels keen to have a go at making the
implementation more efficient ...


see also
http://intevation.de/rt/webrt?serial_num=253
http://intevation.de/rt/webrt?serial_num=1063



regards,
Hamish