[GRASS-stats] Re: address (nil), cause 'memory not mapped'

[Juan Manuel Barreneche]

just to mention that the loop was already running for about 20 hours...

Juan

On Tue, Aug 19, 2008 at 6:31 PM, Juan Manuel Barreneche
<jumanbar at gmail.com>wrote:

> Dear users,
> I got this problem and i don't have a clue of what it could be happening...
>
> The context: i'm running a loop in which i extract information from a
> raster map (I work with GRASS and R, using spgrass6 package), and rearrange
> it to create a matrix. I've tried it with small maps and it works smoothly,
> but in large maps I have to resort to saving data in the hard disk regularly
> in order to avoid the "cannot allocate vector of size..." problem (builted
> in the loop itself).
>
> Even so, the message "address (nil), cause 'memory not mapped'" appeared,
> and i really don't have a clue of what it means.
>
> I run R 2.7.0 on openSUSE 10.2
>
> If anyone can be of any help, it'll be greatly appreciated... below I'm
> writing the output i got (and the R.Version() output...)
>
> thank you,
>
> Juan
>
> <grass output>
> Null cells excluded from cost evaluation.
> Source map is: Floating point (double) cell type
> 189 rows, 178 cols
> Creating some temporary files
> Reading riosypondas3000
>  100%
> Initializing output
>  100%
> Finding cost path
> Writing nombre
> Double cell type.
> Writing...
>  100%
> Peak cost value: 13.614127
> Creating BIL support files...
> Header File =
> /home/mastermind/GRASSDATA//yacare1/jmb/.tmp/SpongeBob/nombre.hdr
> World File =
> /home/mastermind/GRASSDATA//yacare1/jmb/.tmp/SpongeBob/nombre.wld
> Exporting raster as double values (bytes=8)
> Using the current region settings...
> north=6681799.617727
> south=6115500.667945
> east=756812.903880
> west=223200.856418
> r=189
> c=178
>  100%
> <end of grass output>
>
>  *** caught segfault ***
> address (nil), cause 'memory not mapped'
>
> Traceback:
>  1: system("g.proj -j -f", intern = TRUE, ignore.stderr = ignore.stderr)
>  2: ifelse(.Platform$OS.type == "windows", projstr <- system("g.proj -j
> -f",     intern = TRUE), projstr <- system("g.proj -j -f", intern =
> TRUE,     ignore.stderr = ignore.stderr))
>  3: getLocationProj()
>  4: nchar(projargs)
>  5: CRS(getLocationProj())
>  6: readRAST6("nombre")
>  7: dist.grass(matrizPaisaje.riosypondas3000, "riosypondas3000",     direct
> = "/home/mastermind/r/distancias", division = 17)
>  8: eval(expr, envir, enclos)
>  9: eval(parse(text = sprintf("dist.%s <<- dist.grass(matrizPaisaje.%s,
> '%s', direct='%s', division=%s)",     i, i, i, direct, division)))
> 10: dist.grass.loop(c("riosypondas3000", "maxent3000",
> "alturas3000.2"),     direct = "/home/mastermind/r/distancias", division =
> 17)
> 11: eval(expr, envir, enclos)
> 12: eval(expr, envir = loc.frame)
> 13: system.time(dist.grass.loop(c("riosypondas3000", "maxent3000",
> "alturas3000.2"), direct = "/home/mastermind/r/distancias",     division =
> 17))
>
> Possible actions:
> 1: abort (with core dump, if enabled)
> 2: normal R exit
> 3: exit R without saving workspace
> 4: exit R saving workspace
>
> > R.Version()
> $platform
> [1] "i686-pc-linux-gnu"
>
> $arch
> [1] "i686"
>
> $os
> [1] "linux-gnu"
>
> $system
> [1] "i686, linux-gnu"
>
> $status
> [1] ""
>
> $major
> [1] "2"
>
> $minor
> [1] "7.0"
>
> $year
> [1] "2008"
>
> $month
> [1] "04"
>
> $day
> [1] "22"
>
> $`svn rev`
> [1] "45424"
>
> $language
> [1] "R"
>
> $version.string
> [1] "R version 2.7.0 (2008-04-22)"
>
>
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