[GRASS-user] Re: newbie user

[Markus Neteler]

On Wed, May 9, 2012 at 9:26 PM, Levente Kovacs <leventelist at gmail.com> wrote:
> Ok,
>
>
> So far, I've downloaded an osm file, and imported to QGIS. It is very slow on
> my 2 CPU machine, and it only uses a single CPU at a time. Is there any new
> version that supports multi threading? I use 1.4.0.

Very unlikely. To make either QGIS or GRASS multi-core ready in a significant
way (e.g. with openMP), it is a long way to go.

>
> How can I import a *.osm file into GRASS? Is GRASS faster than QGIS?

By chance this week a new library came out:
https://www.gaia-gis.it/fossil/readosm/home
"ReadOSM is an open source library to extract valid data from
 within an Open Street Map input file."

> I thought it'll be as fast as an on-line map. Why is the so big difference?

Online map portals never show the true underlying data but some aggregated
material. Hence much faster than when working in a GIS with the true data.

Markus