+1 also from me. A useful extention to configure. And harmless. Markus
On Sat, Jun 20, 2009 at 2:10 PM, Yann Chemin<yann.che...@gmail.com> wrote: > +1 > > I have found simple data parallelism being beneficial for satellite > imagery processing (like Landsat) even with a simple dual core. > > Yann > > 2009/6/20 GRASS GIS <t...@osgeo.org>: >> #657: add --with-openmp support to ./configure >> -----------------------+---------------------------------------------------- >> Reporter: hamish | Owner: grass-...@lists.osgeo.org >> Type: task | Status: new >> Priority: normal | Milestone: 7.0.0 >> Component: Compiling | Version: svn-trunk >> Keywords: openmp | Platform: All >> Cpu: All | >> -----------------------+---------------------------------------------------- >> Hi, >> >> lib/gpde already supports OpenMP (but requires Makefile hacks to enable) >> and hopefully v.lidar's tcholDec() will support OpenMP soon as well, so it >> would be nice if ./configure could do checks & sets for --with-openmp as >> well as --with-pthread. It would mean we have two ways of parallelizing >> stuff, which is sort of redundant, but maybe each can be used to its own >> strength? i.e. we have a large enough array of algorithms in the modules >> so that some will be both well and poorly suited to either method. >> >> see also http://grass.osgeo.org/wiki/OpenMP >> >> my philosophy would be to only add it to known bottlenecks, ie fight the >> urge to add it to every for loop just because it may be possible to do so. >> Hit the low hanging fruit and leave the rest of the code stable. >> >> also it would be good to add some Doxygen documentation to >> lib/gis/worker.c for educational purposes. >> >> >> thanks, >> Hamish >> >> -- >> Ticket URL: <https://trac.osgeo.org/grass/ticket/657> >> GRASS GIS <http://grass.osgeo.org> >> >> _______________________________________________ >> grass-dev mailing list >> grass-dev@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/grass-dev >> > > > > -- > Yann Chemin > Mobile: +33 (06) 10 11 39 26 > Home: +33 (02) 35 27 08 20, > Address: Gite de Mortagne, > 16 rue de la chenaie, > 76110 Bec de Mortagne, > France > > Perso: http://www.freewebs.com/ychemin > YiKingDo: http://yikingdo.unblog.fr/ > _______________________________________________ > grass-dev mailing list > grass-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-dev > _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev