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I have some big mosaic files (about 3GB, 50k x 50k) and use gdal_retile.py to generate the pyramid tiles for geoserver. It takes very long time to generate all tiles (about one day in my computer).

After googling, I didn't find a parallel version of gdal_retile.py. Are there other methods to generate tiles for big mosaic with higher speed?

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I made some 'gentle' additions to the gdal_retile code to make it resumable in the event of any unavoidable/intentional interruptions. You can find it here gdal_retile_multi

You can also use it in a multiple-copy way to tile a large raster dataset in a divide-and-conquer approach.

  • Thanks for your suggestion. Actually I have implemented a R script wrapping with gdal_retile which can run in parallel. – Bangyou Dec 11 '18 at 21:08

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