Hi again, with your help I've fix problem with "integer overflow" and now I get correct results.
Also I clean up my code for reduce memory usage but problem with large files is remain. I have raster with size 11779*10663 and 5 bands. When I calculate NDVI on Linux box (2 Gb RAM, 2Gb swap, GDAL 1.6.3) all works fine and I get correct results.Peak memory consumption during this operation is 1900 Mb RAM and 300 Mb swap (monitored with htop). When I run same code with same raster on Windows box (2 Gb RAM, swap size is selected by OS ~1.3 Gb, GDAL 1.6.3) I get MemoryError. Peak memory consumption during this operation is 600 Mb RAM and 700 Mb swap. I've try smaller raster with size 8500*7600 pixels but get MemoryError too. -- Alexander Bruy mailto: alexander.b...@gmail.com _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
