I'm trying to optimize the execution time of LMSVectorization. I've noted that most time is spent at the "Merging polygons across tiles" phase, so I've increased tilesize: The point is that this step takes the same time no matter the tilesize value (and hence, the nb of tiles). I can increase tilesize until I have only 1 tile, but still have a "Merging polygons across tiles" phase (despite I have only 1 !!) and it takes as if I had 16 tiles...
$ /home/alobo/OTB-5.8.0-Linux64/bin/otbcli_LSMSVectorization -in PCA/WV3sub1PCA.tif -inseg segmentation_merged.tif -out WV3sub1PCAMSS_r100_s5_R5_S5_m0_m20.shp -tilesizex 4096 -tilesizey 4096 2017 Jan 31 13:06:53 : Application.logger (INFO) Number of tiles: 1 x 1 Retrieve region count...: 100% [**************************************************] (0.7 seconds) 2017 Jan 31 13:06:54 : Application.logger (INFO) Vectorization ... 2017 Jan 31 13:07:12 : Application.logger (INFO) Merging polygons across tiles ... 2017 Jan 31 13:10:42 : Application.logger (INFO) Elapsed time: 187.29 seconds Any idea of why? Agus -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
