Hi Daniel, On Thu, Dec 30, 2010 at 1:03 AM, LeeDaniel <lee.daniel.1...@gmail.com> wrote: > > Hello, > > I'm trying to use multithreading in GRASS 6.4 in OpenSUSE 64-bit installed
Note that there is almost no multithreading in GRASS 6 itself. > from the community repository and am wondering what the best way would be to > set my script. What I'm wanting to do is several r.sun analyses parallel to > one another using a Python script. This is best done in parallel GRASS batch jobs runs, running each job in a different mapset, then copying over the result into an integrated mapset. > I've read the wiki page about OpenMP at > http://grass.osgeo.org/wiki/OpenMP#Multithreaded_jobs_in_GRASS but don't > quite understand it - it seems that I can activate multithreading > capabilities in GRASS by modifying /lib/gpde/Makefile but I don't have that > file. No, in the /lib/gpde/Makefile you would activate it only for GPDE. OpenMP is not really there in GRASS 6. > I also wasn't able to find a whole lot of information about it that I > could understand - I meet the requirement listed at > http://grass.osgeo.org/programming6/gpdelib.html of having a compiler that > supports OpenMP (I've got gcc 4.5), but am unsure of how I should proceed. > Does anyone have any tips? Yes, you can rather easily use this approach: http://grass.osgeo.org/wiki/GRASS_and_Shell#GRASS_Batch_jobs or http://grass.osgeo.org/wiki/Parallel_GRASS_jobs hope this helps, Markus _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
