<div dir="ltr"><div><div><div>Dear Markus,<br><br></div>thanks for the comments, I'm already taking part in the ticket handling mentioned above with testcase creation and testing. It seems that 7.0 problems solved at <a class="" href="https://trac.osgeo.org/grass/changeset/65214" title="r.surf.idw: fix null value condition, #2671">r65214</a>, I'll test it further.<br><br></div>Very good community, anyway :)<br><br></div>Robert<br><br><div><div><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-05-17 19:28 GMT+02:00 Markus Neteler <span dir="ltr"><<a href="mailto:neteler@osgeo.org" target="_blank">neteler@osgeo.org</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Thu, May 7, 2015 at 12:28 PM, Robert Kuszinger <<a href="mailto:kuszinger@giscom.hu">kuszinger@giscom.hu</a>> wrote:<br>
> (I'm sorry for the previous one going out without subject)<br>
><br>
> Hello,<br>
><br>
> I've tried to use r.surf.idw on a large raster. It works well in 6.4.4.<br>
><br>
> I've moved to 7.1 SVN, where everything is marvellous, at least what I use,<br>
> except r.surf.idw which creates the same output as the impot was.<br>
> I've also svn-ed and compiled 7.0.1, where r.surf.idw did the same.<br>
<br>
There are two issues open:<br>
<a href="https://trac.osgeo.org/grass/query?status=!closed&keywords=~r.surf.idw" target="_blank">https://trac.osgeo.org/grass/query?status=!closed&keywords=~r.surf.idw</a><br>
<br>
> Namely:<br>
><br>
> r.surf.idw --overwrite --verbose input=output_temp1 output=output_temp2<br>
> npoints=7<br>
><br>
> when finished, output_temp2 is the same as output_temp1 and no interpolation<br>
> seems to be done.<br>
><br>
> One more big difference:<br>
> 6.4.4 uses less than 2G ram and finishes in a few minutes. In 7.0 and 7.1 it<br>
> eats all 6GB RAM, 4 GB SWAP and runs much-much longer, understandably...<br>
<br>
This is kind of surprising. Are you sure that the computation region<br>
was really the same (extent + resolution)?<br>
Could you provide us with a reproducible example?<br>
<br>
> Should I stay with 6.4.4?<br>
<br>
Likely not :-)<br>
<span class="HOEnZb"><font color="#888888"><br>
Markus<br>
</font></span></blockquote></div><br></div>