<div>Hi Stephen,</div>
<div> </div>
<div>Thanks for your reply.</div>
<div>I thank the disk space is not problem because I still have 100Gb free.</div>
<div>What was the dimension (row and columns) that you got success?!</div>
<div>May be 7200x7200 is to large. (?)</div>
<div> </div>
<div>Cheers</div>
<div> </div>
<div>milton<br><br></div>
<div class="gmail_quote">2009/7/24 stephen sefick <span dir="ltr"><<a href="mailto:ssefick@gmail.com">ssefick@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Do you have enough hard disk space? I have had a problem running<br>r.watershed on very large datasets (my computer is much more modest).<br>
I have had luck resampling the data to a larger resolution and then<br>running r.watershed. r.watershed crashes at 10m res but will run just<br>fine at 50m. 1GB RAM.<br><br>Stephen Sefick<br>
<div>
<div></div>
<div class="h5"><br>On Fri, Jul 24, 2009 at 5:57 PM, Milton Cezar<br>Ribeiro<<a href="mailto:miltinho.astronauta@gmail.com">miltinho.astronauta@gmail.com</a>> wrote:<br>> Dear all,<br>><br>> I am trying run a r.watershed command with one 7200x7200 DEM map.<br>
> But after one day running, the system crash without finish the output<br>> generation.<br>> Please, see below (2 warnings before crash).<br>> By the way I am running grass 6.4.0 SVN (rc4?) under Msys/Vista<br>
> on a 6Gb/64 bits machine.<br>><br>> Thanks for the help,<br>><br>> milton<br>> ===<br>> GRASS 6.4.0svn (newLocation):c:/Users/famiglia > g.region -p<br>> projection: 0 (x,y)<br>> zone: 0<br>
> north: -23.99986111<br>> south: -26.00013889<br>> west: -49.00013889<br>> east: -46.99986111<br>> nsres: 0.00027778<br>> ewres: 0.00027778<br>> rows: 7201<br>> cols: 7201<br>
> cells: 51854401<br>><br>><br>> GRASS 6.4.0svn > g.region rast=FabioASTGTM_S2526W04948_dem<br>> GRASS 6.4.0svn > r.watershed.exe -m 4096<br>> elevation=FabioASTGTM_S2526W04948_dem<br>> stream=FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100 threshold=100<br>
> --o<br>> WARNING: Subprocess failed with exit code 255<br>> WARNING: category information for<br>> [FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100] in<br>> [PERMANENT] missing or invalid<br>
><br>><br></div></div>> _______________________________________________<br>> grass-user mailing list<br>> <a href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a><br>> <a href="http://lists.osgeo.org/mailman/listinfo/grass-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/grass-user</a><br>
><br>><br><br><br><br>--<br>Stephen Sefick<br><br>Let's not spend our time and resources thinking about things that are<br>so little or so large that all they really do for us is puff us up and<br>make us feel like gods. We are mammals, and have not exhausted the<br>
annoying little problems of being mammals.<br><br> -K. Mullis<br></blockquote></div><br>