[GRASS-user] r.sim.water (compiling) issue

[Levente Juhász]

Thanks guys for the tips.
I've got to change my system back to ubuntu 12.04 so I'm not able to post
the outputs you asked for. I downloaded the latest source code from
svn.osgeo.org and compiled it. Now r.sim.water works as expected.

Yesterday I was trying to make it work for a while and I found this out:
when other processes used lots of memory (10+ chrome tabs, mozilla, etc),
the "libgrass_sim.7.0.svn.so: cannot map zero-fill pages: Cannot allocate
memory" error came out while i was trying to call "r.sim.water". After
closing most of the processes, r.sim.water could open.
I'm not really an expert, but it seems like it has something to do with
memory handling...

Thanks again for trying to help, everything works well now.

2013/3/28 Markus Neteler <neteler at osgeo.org>

> On Wed, Mar 27, 2013 at 9:31 AM, Levente Juhász <jlevente89 at gmail.com>
> wrote:
> > Hi list,
> >
> > I am Levente from Hungary and i want to use GRASS GIS for a project. I'm
> > working on a website that can do a hydrological modeling task via WPS
> > protocol. I started to develop it in a windows environment but the
> module i
> > want to use (r.sim.water) had some issues on WinGrass. I've recently
> changed
> > my system to ubuntu 12.10. Altough I'm not dealing with linux and GRASS
> GIS
> > for a long time I understands the basics of them.
> > I have downloaded and compiled a GRASS70 svn from ubuntugis
>
> Please, as Rashad suggests, get source code from the GRASS Server itself:
>
> http://trac.osgeo.org/grass/wiki/DownloadSource#GRASS7
>
> > GRASS GIS compilation log
> > -------------------------
> > Started compilation: 2013. márc. 27., szerda, 01.00.29 CET
> > --
> > Errors in:
> > /home/pepszi/grass70.7.0.orig/raster/simwe/r.sim.water
> > /home/pepszi/grass70.7.0.orig/raster/simwe/r.sim.sediment
> > --
> > In case of errors please change into the directory with error and run
> > 'make'.
>
> Please try as suggested:
>
> cd /home/pepszi/grass70.7.0.orig/raster/simwe/r.sim.water
> make
>
> and
> cd /home/pepszi/grass70.7.0.orig/raster/simwe/r.sim.sediment
> make
>
> to see the errors.
>
> ...
> > Unable to fetch interface description for command
> > 'r.sim.water'.
> > Details: r.sim.water: error while loading shared libraries:
> > libgrass_sim.7.0.svn.so: cannot map zero-fill pages: Cannot
> > allocate memory
>
> Please post the result of
>
> g.region -p
>
> ...
> > p.s.: I checked the stable Grass 6.4.2. which comes from the ubuntu
> software
> > center and it produces similar issues. Is it an issue which has
> something to
> > do with my system? What should I do?
>
> Please also post
> uname -a
>
> Markus
>
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