[GRASS-user] Simultaneous r.horizon processes

[Markus Neteler]

On Wed, Apr 18, 2012 at 6:54 AM, Collin Bode <collin at berkeley.edu> wrote:
...
> There are several more issues I should mention:
> 1. Each process MUST run in its own mapset.    Grass mapsets are not thread
> or process safe.   The multiple instances will overwrite each other and
> create jibberish.

Right - same thing on a cluster. The solution is easy, see
"# generate machine (blade) unique TMP string"
in
http://grass.osgeo.org/wiki/Parallel_GRASS_jobs#The_Grid_Engine_script

which I have just updated (simplified new approach).

Markus