[GRASS-user] r.resamp.rst error : "Not enough disk space--cannot write files"

[Markus Metz]

On Sun, Mar 10, 2013 at 11:28 PM, bidon sanshuile <piano_bo at hotmail.com> wrote:
>
>
>> Date: Sun, 10 Mar 2013 20:24:08 +0100
>
>> Subject: Re: [GRASS-user] r.resamp.rst error : "Not enough disk
>> space--cannot write files"
>> From: markus.metz.giswork at gmail.com
>> To: piano_bo at hotmail.com
>> CC: grass-user at lists.osgeo.org
>>
>> On Sun, Mar 10, 2013 at 7:41 PM, bidon sanshuile <piano_bo at hotmail.com>
>> wrote:
>> >> Date: Sun, 10 Mar 2013 16:28:49 +0100
>> >> Subject: Re: [GRASS-user] r.resamp.rst error : "Not enough disk
>> >> space--cannot write files"
>> >> From: markus.metz.giswork at gmail.com
>> >> To: piano_bo at hotmail.com
>> >> CC: grass-user at lists.osgeo.org
>> >
>> >>
>> >> On Sun, Mar 10, 2013 at 9:33 AM, bidon sanshuile <piano_bo at hotmail.com>
>> >> wrote:
>> >> > Hello,
>> >> >
>> >> > I'm in an internship for a marine institute and try to calculate the
>> >> > sandwaves migration rate.
>> >> > Everything was ok until today. I am confronted to a difficulty I
>> >> > cannot
>> >> > manage.
>> >> >
>> >> > When I try to use the tool "r.resamp.rst", it gives me as answer:
>> >> >
>> >> > r.resamp.rst input=map at PERMANENT ew_res=11 ns_res=11 pcurv=curv
>> >> > Processing all selected output files will require
>> >>
>> >> Note that this message:
>> >> > 261320 bytes of disk space for temp files.
>> >>
>> >> is bogus for large regions with fine resolution because of integer
>> >> overflow (fixed in trunk).
>> >>
>> >> How many cells are in your current region with resolution=11?
>> >
>> > Thank you for your answers!
>> >
>> > Here are the characteristics of the raster:
>> > | Rows: 3062
>> > |
>> > | Columns: 2587
>> > |
>> > | Total Cells: 7921394
>> >
>> > I don't know how many of these have a resolution of 11.
>>
>> You need to provide the output of g.region -p. Note that all cells
>> have the same resolution, and that r.resamp.rst is typically used to
>> resample to a finer resolution, e.g. 20 to 10 map units.
>
> Here is the result:
> projection: 0 (x,y)
> zone:       0
> north:      5682231.5
> south:      5679169.5
> west:       469641.5
> east:       472228.5
> nsres:      1
> ewres:      1
> rows:       3062
> cols:       2587
> cells:      7921394
>
> I must admit that I am quite new in GRASS, and I don't master all the
> concepts. Is the raster too big? Do I have to increase the memory allocated?
> In this last case, I don't know at all which module to use.

The raster does not seem too big, but r.resamp.rst needs quite a bit
of disk space depending on the selected output maps.

In this case, the target resolution 11 is larger than the source
resolution 1. You would rather want to use r.resamp.stats in order to
aggregate several input cells into one output cell. r.resamp.rst is
meant to be used when you want to go to a finer resolution, e.g. from
10 to 1.

Markus M


>
>
>>
>> > . I am following a
>> > step by step manual where they advise to set ew_res at this value.
>>
>> Why 11 and not 10?
>
> It doesn't work for both ^^ It works until I put 7, but I would like to make
> it as written in the manual, to be precise enough.
>
>
>>
>> Markus M
>>
>> >
>> >
>> >>> What filesystem? FAT32 cannot support files larger than 4 GiB; NTFS
>> >>> shouldn't have any problems.
>> >
>> > My two hard discs are NTFS
>> >
>> >
>> >> > Temporarily changing the region to desired resolution ...
>> >> > Changing back to the original region ...
>> >> > Percent complete:
>> >> > Not enough disk space--cannot write files
>> >> > Not enough disk space--cannot write files
>> >> > Not enough disk space--cannot write files
>> >> > Not enough disk space--cannot write files
>> >> > .....
>> >> > interpolate() failed
>> >> > dnorm in mainc after grid before out1= 12.961481
>> >> > ERROR: split_and_interpolate() failed
>> >> >
>> >> > I have 14GB left on my hard disk so I don't understand why they are
>> >> > saying
>> >> > me that :/
>> >> >
>> >> > I tried to find solution, and I found some answers (e.g. here :
>> >> > http://lists.osgeo.org/pipermail/grass-dev/2005-April/018152.html)
>> >> > but I dont understand ^^
>> >> > They speak about a "ulimit -f" function, but where should I write it
>> >> > ?
>> >> > It
>> >> > doesn't work in GRASS.
>> >> > I am on windows, maybe is that the problem.
>> >> >
>> >> > SO in conclusion, I am more than lost so if someone could help me it
>> >> > would
>> >> > be perfect!
>> >> > Thank you,
>> >> > b.raoul
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > grass-user mailing list
>> >> > grass-user at lists.osgeo.org
>> >> > http://lists.osgeo.org/mailman/listinfo/grass-user
>> >> >