[GRASSLIST:3852] Re: s.surf.idw help

[Markus Neteler]

On Tue, Jun 11, 2002 at 04:19:35PM +1000, Gordon Keith wrote:
> Sounds like you are running out of swap space.
> 
> I gave up on s.surf.idw on my data set. After I gave it about 3GB of 
> swap space it managed to process 3% of the data over a weekend, so I 
> killed it.

Consider to use the pre4 version of s.surf.rst (also the RST algorithm
is better than IDW). The module was improved to run > 2000% faster for
dense data.

[snip]

Markus

 
> On Sat, 8 Jun 2002 01:09, Kevin Slover wrote:
> > I am attempting to use r.surf.idw to create a finer resolution data
> > set for GLOBE data.  Currently, I have imported the data at .001 deg
> > X .001 deg res, and am trying to get to .0005 X .0005 deg res...it
> > starts fine,
> >
> > reading in the input raster, however, will not read the entire
> > raster...
> >
> > When it is reading in the raster, is it storing it to memory before
> > starting the interpolation??  The first time I tried it, the message
> > simply said KILLED.  I tried a second time, reducing the area of
> > interpolation, and it completely froze up my computer.  I am using
> > pre4 ( I think), I downloaded from CVS 2 wks ago, on a RH7.2.  Any
> > thoughts??  I think I might be trying to do too much...just my first
> > guestimate...
> >
> > thanks...
> 
> -- 
> 
> Gordon Keith
> Programmer/Data Analyst
> Marine Acoustics
> CSIRO Marine Research
> http://www.marine.csiro.au
> 
> "Computers are useless. They can only give you answers." 
> - Pablo Picasso, 1968

-- 
Markus Neteler

ITC-irst, Istituto per la Ricerca Scientifica e Tecnologica
     Project on Predictive Models for the Environment    
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