Example of simple parallel execution of a pdal pipeline on remote hosts with gnu parallel

Pdal_pipeline_parallel_multiHosts.sh

parallel \
  # Database of results metadata
  --sqlandworker sqlite3:///out.sqlite/output \
  # Url of host
  --sshlogin host_1,host_2,: \
  # Transfer of pdal pipeline on hosts
  --tf my_pipeline_file.json \
  # Transfer las files to remote hosts, return the results
  --tf {} --return {.}.tif --cleanup \
  # pdal command
  "pdal pipeline -i my_pipeline_file.json --readers.las.filename={} --writers.gdal.filename={.}.tif" ::: *.las