Reading flow direction raster <fdr.tif>...
Input time for flow direction: 1146000 microsec
Accumulating flows...
Computation time for flow accumulation: 2217000 microsec
Writing flow accumulation raster <dnfmtf64/mef64ac.tif>...
Output time for flow accumulation: 11391000 microsec

real	0m15.647s
user	0m0.000s
sys	0m0.000s
