With 7201 rows x 7201 columns, the in-memory version should use at most
1.6GB of RAM. There should be no problem running it all in memory (no -m
4096) on a machine with 6GB.
Markus M
Milton Cezar Ribeiro wrote:
Dear all,
I am trying run a r.watershed command with one 7200x7200 DEM map.
But after one day running, the system crash without finish the output
generation.
Please, see below (2 warnings before crash).
By the way I am running grass 6.4.0 SVN (rc4?) under Msys/Vista
on a 6Gb/64 bits machine.
Thanks for the help,
milton
===
GRASS 6.4.0svn (newLocation):c:/Users/famiglia > g.region -p
projection: 0 (x,y)
zone: 0
north: -23.99986111
south: -26.00013889
west: -49.00013889
east: -46.99986111
nsres: 0.00027778
ewres: 0.00027778
rows: 7201
cols: 7201
cells: 51854401
GRASS 6.4.0svn > g.region rast=FabioASTGTM_S2526W04948_dem
GRASS 6.4.0svn > r.watershed.exe -m 4096
elevation=FabioASTGTM_S2526W04948_dem
stream=FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100
threshold=100 --o
WARNING: Subprocess failed with exit code 255
WARNING: category information for
[FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100] in
[PERMANENT] missing or invalid
------------------------------------------------------------------------
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