<div>Hi Markus,</div>
<div> </div>
<div>My system start with 1.5GB of memory usage, considering that </div>
<div>grass are loaded on memory, and my mapset is also loaded.</div>
<div>When I start the r.watershed, my system go up to 3.0GB, remain </div>
<div>running for few minutes, and then give the error that I reported,</div>
<div>and them release the memory. On several trying the system </div>
<div>goes only up to 3GB, but I have 6Gb. So my "-m memory=4096"</div>
<div>not make sense. In fact 3-1.5 = ~ 1.5GB as you suggested.</div>
<div> </div>
<div>Any other idea?</div>
<div> </div>
<div>cheers</div>
<div> </div>
<div>milton<br><br></div>
<div class="gmail_quote">2009/7/25 Markus Metz <span dir="ltr"><<a href="mailto:markus.metz.giswork@googlemail.com">markus.metz.giswork@googlemail.com</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div class="im"><br>Milton Cezar Ribeiro wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi Markus,<br> 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:<br>
-----------<br>GRASS 6.4.0svn (newLocation):c:/Users/famiglia > r.watershed.exe -m memory=4096 elevation=FabioASTGTM_S2526W049<br>48_dem stream=FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100 threshold=100 --o --v<br>
SECTION 1 beginning: Initiating Variables. 5 sections total.<br>ERROR: G_malloc: unable to allocate 800000 bytes at setup.c:64<br></blockquote></div>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.<br>
<br>Can you do any other operations on the DEM and the given region, e.g. resampling or neighborhood filter or something like that?<br><br>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.<br>
<br>Markus<br><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div class="im">WARNING: Subprocess failed with exit code 1<br>WARNING: category information for<br> [FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100] in<br> [PERMANENT] missing or invalid<br>---------<br>
Any other suggestions?<br> milton<br></div> 2009/7/25 Markus Metz <<a href="mailto:markus.metz.giswork@googlemail.com" target="_blank">markus.metz.giswork@googlemail.com</a> <mailto:<a href="mailto:markus.metz.giswork@googlemail.com" target="_blank">markus.metz.giswork@googlemail.com</a>>>
<div>
<div></div>
<div class="h5"><br><br> Try to run it all in memory:<br> r.watershed.exe elevation=FabioASTGTM_S2526W04948_dem<br> stream=FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100<br> threshold=100 --o<br><br> Should finish in a few minutes.<br>
<br> Where is this 4096 coming from in the original command? Should<br> that be memory=4096?<br> r.watershed.exe -m memory=4096<br> elevation=FabioASTGTM_S2526W04948_dem<br> stream=FabioASTGTM_S2526W04948_dem_rwatershed_stream_thres0100<br>
threshold=100 --o<br><br> How far did it get? There are usually message like SECTION 1:,<br> SECTION 2:, SECTION 3: etc.<br><br> Markus M<br><br><br><br> Milton Cezar Ribeiro wrote:<br><br> Dear all,<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<br> output 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> Thanks for the help,<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> 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<br> threshold=100 --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><br></div></div></blockquote></blockquote></div><br>