Hi Markus, My system start with 1.5GB of memory usage, considering that grass are loaded on memory, and my mapset is also loaded. When I start the r.watershed, my system go up to 3.0GB, remain running for few minutes, and then give the error that I reported, and them release the memory. On several trying the system goes only up to 3GB, but I have 6Gb. So my "-m memory=4096" not make sense. In fact 3-1.5 = ~ 1.5GB as you suggested.
Any other idea? cheers milton 2009/7/25 Markus Metz <markus.metz.gisw...@googlemail.com> > > 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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