#3801: r.watershed crashing on large rasters ----------------------+------------------------- Reporter: dnewcomb | Owner: grass-dev@… Type: defect | Status: new Priority: normal | Milestone: 7.6.1 Component: Default | Version: 7.4.1 Keywords: | CPU: x86-64 Platform: Linux | ----------------------+------------------------- Attempting to run r.watershed on a 13.7 billion pixel raster elevation layer r.watershed --overwrite elevation=cfsdem05 accumulation=cfs_accum drainage=cfs_drain SECTION 1a (of 4): Initiating Memory. WARNING: Subprocess failed with exit code 11 WARNING: category information for [cfs_accum] in [PERMANENT] missing or invalid WARNING: category information for [cfs_drain] in [PERMANENT] missing or invalid
I have tried this with Memory=100000 MB Does r.watershed need more than 100GB of memory to run on a 14 billion pixel raster? The raster is linked via r.external, doe it need to be imported ? Looking backwards, the enhancement to run large raster was done for GRASS 7.0 , is this a regression, or was it not tested to larger than 9 billion cells? -- Ticket URL: <https://trac.osgeo.org/grass/ticket/3801> GRASS GIS <https://grass.osgeo.org>
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