[GRASS-user] v.generalize: does it take forever?

Markus Neteler neteler at osgeo.org
Wed Jan 14 07:06:20 PST 2015


On Wed, Jan 14, 2015 at 3:54 PM, Fábio Dias <fabio.dias at gmail.com> wrote:
...
> What would be the best way to do that in parallel? One mapset for each
> year? Can I run multiple v.generalizes on the same input with
> different outputs?

Yes sure.

> My first thought was to run completely separated grass processes for
> each simplification, but I didn't find a way to make it search
> something different than .grass / .grass70 for the configuration
> stuff....

Maybe take a look at this approach
http://grasswiki.osgeo.org/wiki/Parallel_GRASS_jobs#Grid_Engine

but even sending different v.generalize jobs to background (&) should
work if you have enough RAM.

markusN


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