This project will improve the speed of flow accumulation.
Program | Algorithm only (sec) | Total (sec) |
---|---|---|
FastFlow Zhou fdr.tif fac.tif | 61 | 87 |
FastFlow Wang fdr.tif fac.tif | 174 | 277 |
FastFlow Recursive fdr.tif fac.tif | 178 | 204 |
FastFlow Jiang fdr.tif fac.tif | 304 | 333 |
FastFlow BTI fdr.tif fac.tif | 118 | 144 |
TauDEM aread8 -p taud8.tif -ad8 tauad8.tif | 402 | 607 |
TauDEM mpiexec -n 2 aread8 -p taud8.tif -ad8 tauad8.tif | 310 | 514 |
ArcGIS Flow Accumulation | 478 | |
Arc Hydro Flow Accumulation | 681 | |
Coming soon | 48 | 107 |
Yet another coming soon | 21 | 33 |
Too much overhead for raster I/O. Need to reimplement I/O using GDAL or from scratch? Done using GDAL.