Hi Moritz, Thanks for your answer :)
In smaller subsets (per cutlines tiles), it works just fine. I will try later today or tomorrow to run it with grass76. Best, Vero El mar., 3 dic. 2019 a las 12:41, Moritz Lennert (< [email protected]>) escribió: > Hi Vero, > > Le Mon, 2 Dec 2019 13:43:30 +0100, > Veronica Andreo <[email protected]> a écrit : > > > Hi, > > > > We are trying to use i.segment.stats for a map with 800000+ segments > > and already in two different laptops, we get: > > > > bands=`g.list rast pat=IGUAZU_IMG_* sep=,` > > > RASTER_STATS=(min,max,range,mean,stddev,median,first_quart,third_quart,perc_90) > > AREA_STATS=(area,perimeter,compact_circle,compact_square,fd) > > > > i.segment.stats -rc \ > > map=segments_full_region \ > > rasters=$bands \ > > raster_statistics=$RASTER_STATS \ > > area_measures=$AREA_STATS \ > > vectormap=segs_stats_map \ > > processes=4 > > Calculating geometry statistics... > > Calculating statistics for raster maps... > > Exception in thread Thread-3: > > Traceback (most recent call last): > > File "/usr/lib/python3.6/threading.py", line 916, in > > _bootstrap_inner self.run() > > File "/usr/lib/python3.6/threading.py", line 864, in run > > self._target(*self._args, **self._kwargs) > > File "/usr/lib/python3.6/multiprocessing/pool.py", line 463, in > > _handle_results > > task = get() > > File "/usr/lib/python3.6/multiprocessing/connection.py", line 251, > > in recv return _ForkingPickler.loads(buf.getbuffer()) > > TypeError: __init__() missing 3 required positional arguments: > > 'module', 'code', and 'returncode' > > > > Does it have to do with memory? I used the module a month ago with > > 500000+ segments and it worked just fine... > > I don't think memory is the issue, but I find the error message > pretty cryptic, so wouldn't exclude altogether. Could it be some > difference between Python 2 and 3 in the multiprocessing module ? Would > it be possible for you try running it in Python 2 ? > > Maybe you could also try to run it on a smaller subset of the > segmentation result ? > > Moritz > > > -- > Département Géosciences, Environnement et Société Université Libre de > Bruxelles Bureau: S.DB.6.138 > CP 130/03 > Av. F.D. Roosevelt 50 > 1050 Bruxelles > Belgique > > tél. + 32 2 650.68.12 / 68.11 (secr.) > fax + 32 2 650.68.30 >
_______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
