Why does gdal use only one core?

Question

I run gdal2tiles on debian machine with 4 cores:

sudo /usr/bin/gdal2tiles.py -r cubic -a 0,0,0 -z 10-15 /home/adm/topo/ekb.vrt  /var/www/tiles

In htop I see:

Why does gdal use only one core in work? Gdal version is 2.1.2.

bugmenot123 · Accepted Answer · 2018-12-07 12:23:39Z

17

That's because gdal2tiles is single-threaded. You can use a parallelized version available at https://github.com/GitHubRGI/geopackage-python/blob/master/Tiling/gdal2tiles_parallel.py

answered Dec 7, 2018 at 12:23

bugmenot123

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There is another version of this file which include enhancements in different forks. Look at github.com/roblabs/gdal2tilesp/blob/master/gdal2tilesp.py (which is already a fork)
– bennos
Commented Dec 11, 2018 at 19:28

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