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nice ncremap -5 --thr_nbr=6 --src_grd=hydro1k_ccw.nc --dst_grd=ne1024np4_scrip_c20191023.nc --map=map_hydro1k_to_ne1024np4_nco.20200401.nc
With six threads on our desktop benchmarking Linux box (e3sm.ess.uci.edu) the command above completes in just under three hours. Such maps will suffer in correctness due to self-overlapping input gridcells as discussed above. The map-checker helps diagnose the extent of the self-overlapping issue:
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