Milton Cezar Ribeiro wrote:
Hi Markus,
Thanks for the tips. In fact I made a mistake, because I thought that
with "-m 4096" I was setting 4GB of memory, and unfortunatelly I not
payed attention on memory=4096. Anyway, I tryed with both your
suggestions (with and without -m memory=4096" and still ger error:
-----------
GRASS 6.4.0svn (newLocation):c:/Users/famiglia > r.watershed.exe -m
memory=4096 elevation=FabioASTGTM_S2526W049
48_dem stream=FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100
threshold=100 --o --v
SECTION 1 beginning: Initiating Variables. 5 sections total.
ERROR: G_malloc: unable to allocate 800000 bytes at setup.c:64
Very very strange. Not even 781 KB of memory left? I don't know Vista
very well, but I guess there is some sort of task manager where you can
watch memory consumption. What does it say, is there still enough free
memory available? Anyway, r.watershed should go into swap space (virtual
memory) if there is not enough RAM free.
Can you do any other operations on the DEM and the given region, e.g.
resampling or neighborhood filter or something like that?
Maybe there is a problem with your compilation of grass6.4.0.svn? Is
everything compiled with msys? There were quite a few posts in the list
about vista problems, maybe you find some hints there. I'm only using
Linux, can't help there.
Markus
WARNING: Subprocess failed with exit code 1
WARNING: category information for
[FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100] in
[PERMANENT] missing or invalid
---------
Any other suggestions?
milton
2009/7/25 Markus Metz <markus.metz.gisw...@googlemail.com
<mailto:markus.metz.gisw...@googlemail.com>>
Try to run it all in memory:
r.watershed.exe elevation=FabioASTGTM_S2526W04948_dem
stream=FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100
threshold=100 --o
Should finish in a few minutes.
Where is this 4096 coming from in the original command? Should
that be memory=4096?
r.watershed.exe -m memory=4096
elevation=FabioASTGTM_S2526W04948_dem
stream=FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100
threshold=100 --o
How far did it get? There are usually message like SECTION 1:,
SECTION 2:, SECTION 3: etc.
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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