[GRASS-user] automatically run module/scripts on different regions (Re: memory use of grass modules)

[maning sambale]

> r.mapcalc (for one) should only read in one row of data at a time, this
 shouldn't fill your memory.

What about loading/saving large raster/vector files?  I assume it runs
on memory first before saving them to a file.

Sorry for persisting on this question, for example FRAGSTATS explains this by
"256 rows by 256 columns grid, the memory requirement to simply load
the grid is 256 kb (256*256*4/1024 bytes/kb)" [1]

I really need to understand how GRASS manage RAM for computing large
rasters in a couple of iterations, so that I can manage the optimal
number of row/columns for each region for my study site.

Thanks!

Maning

[1] http://www.umass.edu/landeco/research/fragstats/documents/User%20guidelines/Overview/Computer%20requirements.htm