[GRASS-user] cva run time

[Shaun Walbridge]

Some GRASS modules have extremely long runtimes, it'd probably be best 
to test the CVA analysis on a small region containing your site, monitor 
performance, and assume it will scale linearly from that estimate.

Shaun Walbridge

gary wrote:
> I've been running this CVA analysis for two days straight on an AMD64 
> 4400. The sites file contains one waypoint. The raster file is at 30 
> meter resolution. I'd don't have the extents of the raster file handy, 
> but the site is near the edge, so you can estimate that CVA is looking 
> at a half circle 2000 meters out, which if I did my math correctly is 
> about 14k cells. No virtual memory is required as the CPU has 3.2Gbytes 
> of ram.
> 
> r.cva input=nev616 sites=mtstircsv2 output=mtstircva2 obs_elev=1.75
> target_elev=0.0 max_dist=2000 seed=1 sample=10.0 type=sites curvc=0.0
> 
> Does the run time seem reasonable? CVA provides no estimate of progress.
> 
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