Hi Markus, in reality the computation beyond the mask problem is very complex, I will try to summarize. I have the UNIT3753 mask sit on the PERMANENT and I create 1000 location in a multicore environment (HPC). Each location use the UNIT3753-mask from the PERMANENT. This action produce that the cell_misc/UNIT3753/reclassed_to is written simultaneously from different cores. I think that this action creates a reclassed_to file very large and probably also with different permission which was not be able to be removed.
I solved by manually remove the reclassed_to file, so now the process is running smoothly. A potential solution would be: 1) for each location g.copy raster=PERMANENT,UNIT3753 , and than apply the r.mask using the UNIT3753 in the location and not in the PERMANENT. This would work but data duplication will be there. 2) a second solution would be if the reclassed_to can have a unique name (e.g. reclassed_to$$) associate to the location. Any thought? Thank you Best Regards Giuseppe p.s. in few weeks I will be in Berlin so we may chat in person. On 24 May 2017 at 18:29, Markus Neteler <[email protected]> wrote: > On Wed, May 24, 2017 at 11:40 PM, Giuseppe Amatulli > <[email protected]> wrote: > > Hi Nikos > > I just sort out. > > the file /PERMANENT/cell_misc/UNIT3753/reclassed_to was very big (2.5g) > and > > it was not be able to be removed with the r.remove. > > That size is not an issue at all (the EU DEM is 25GB or more for > example)... the problem must be elsewhere. Happy to help if possible. > BTW: I have compiled GRASS 7.2 also for RHEL via EPEL, see the download > page. > > Markus > > > -- > Markus Neteler, PhD > http://www.mundialis.de - free data with free software > http://grass.osgeo.org > http://courses.neteler.org/blog > -- Giuseppe Amatulli, Ph.D. Research scientist at Yale School of Forestry & Environmental Studies Yale Center for Research Computing Center for Science and Social Science Information New Haven, 06511 Teaching: http://spatial-ecology.org Work: https://environment.yale.edu/profile/giuseppe-amatulli/
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