Selon Margherita Di Leo <[email protected]>: > On Mon, Jul 16, 2012 at 6:01 PM, Margherita Di Leo <[email protected]>wrote: > > > > > now I'm trying with: > > > > CACHE="--config GDAL_CACHEMAX 8000 -wm 2000" > > gdalwarp $CACHE -srcnodata -9999 -dstnodata -9999 -r bilinear -tr $RES > > $RES $LIST mosaik_$RES.tif -co TILED=YES > > > > > > It is taking long, of course, but somehow it is working and I don't get > > error, so I have good expectations.. I'll keep you posted about the results > > :-) > > > > Actually it is taking forever.. after one day it only processed a dozen of > tiles.. any hint to try to speed up the process? Otherwise I will need ages > to get my job done :-)
You could just remove the tweaking done with GDAL_CACHEMAX and -wm and leave them to their default values. In my experience, a so big value for GDAL_CACHEMAX is of no use (no need to use more than 500 MB), and when merging a lot of small rasters into a big one, a high value for -wm can severely decrease performance (see the link I posted yesterday). If all your tiles are of the same resolution, you could also remove -r bilinear. Or if your tiles are in the same projection, just use gdalbuildvrt to create a virtual mosaic. That should take only a few seconds to run. > > Thanks! > > -- > Dr. Margherita Di Leo > _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
