On Thu, Dec 3, 2015 at 10:26 AM, Paulo van Breugel <[email protected]> wrote:
> From the r.series manual I thought that the *file* option allows one to > analyze large amount of raster maps without hitting open files limit and > the size limit of command line arguments. Yet, when using the r.series with > as input a file with 994 raster layers, I am still getting an error message > about "too many open files" > > GRASS 7.1.svn (Data_latlon):~ > r.series --overwrite file=a.txt > output=Spec_rich method=count range=1,2 > WARNING: G__open(read): Unable to open > > '/media/HD2/Data/GRASSdb/Data_latlon/VECEA_species/cellhd/maxent_v1_Hyparrhenia_rufa_rcp45_2055_ens_mean_wc60s_presabs': > Too many open files > > The mentioned layer is the 551th layer out of a list of 996 layers. > > Did I misunderstood this 'file' option? > Try to use z flag. I think the manual is wrong: Use the *file* option to analyze large amount of raster maps without hitting open files limit and the size limit of command line arguments. The computation is slower than the *input* option method. For every sinlge row in the output map(s) all input maps are opened and closed. Anna > > > Paulo > > p.s., Running GRASS GIS trunk on Linux > > _______________________________________________ > grass-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-dev >
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