[GRASS-user] g_malloc on r.watershed with 30GB free ram + r.fill.dir crash

[Markus Neteler]

On Fri, Sep 11, 2015 at 5:22 PM, Helmut Kudrnovsky <hellik at web.de> wrote:
>
> > I define the computational area with 'g.region raster=dem zoom=dem' ('dem'
> being my raster) before launching the script so it should match the
> elevation map.
>
> try
>
> g.region -a raster=elevation align=elevation
>
> to match and align your dem
>
> https://grass.osgeo.org/grass70/manuals/g.region.html
>
> -a    Align region to resolution
> align=name Adjust region cells to cleanly align with this raster map

consider to also add -p in order to actually see what you have there.

Ideally the resolution should match that of the map, also in order to
avoid non-square pixels as you report above
"
nsres:      30.00043309
ewres:      29.99901663
"

which are not ideal.

best
Markus