[GRASS-user] GRASS7 crashes on Win10 with large VRT-file.

[Markus Neteler]

On Thu, Jun 30, 2016 at 11:15 AM, Paul Meems <bontepaarden at gmail.com> wrote:
> Hi Markus,
>
> Thanks for confirming the VRT option should work.
> I've started a new thread for this issue.
>
> I'm currently running GRASS 7 for Windows on Win10-64Bit.
> The 'real' process will run on an Ubuntu server.
>
> g.version -bge returns
>
> version=7.0.4
> date=2016
> revision=68343
> build_date=2016-05-01
> build_platform=x86_64-w64-mingw32

...

> My tiff-files and my VRT file are on an external USB harddrive.
> I created the VRT file using GDAL 1.11.3, released 2015/09/16 because that
> version is in my path.
> gdalinfo of my VRT is:
> Driver: VRT/Virtual Raster
> Files: ahn2.vrt
>        F:\AHN2\r01cz1.tif
>        [...]
>        F:\AHN2\r72hz2.tif
> Size is 532000, 600000
> Coordinate System is:
> PROJCS["Amersfoort / RD New",
>     GEOGCS["Amersfoort",
>         DATUM["Amersfoort",
>             SPHEROID["Bessel 1841",6377397.155,299.1528128000009,
>                 AUTHORITY["EPSG","7004"]],
>
> TOWGS84[565.417,50.3319,465.552,-0.398957,0.343988,-1.8774,4.0725],
>             AUTHORITY["EPSG","6289"]],
>         PRIMEM["Greenwich",0],
>         UNIT["degree",0.0174532925199433],
>         AUTHORITY["EPSG","4289"]],
>     PROJECTION["Oblique_Stereographic"],
>     PARAMETER["latitude_of_origin",52.15616055555555],
>     PARAMETER["central_meridian",5.38763888888889],
>     PARAMETER["scale_factor",0.9999079],
>     PARAMETER["false_easting",155000],
>     PARAMETER["false_northing",463000],
>     UNIT["metre",1,
>         AUTHORITY["EPSG","9001"]],
>     AUTHORITY["EPSG","28992"]]
> Origin = (13000.000000000000000,606250.000000000000000)
> Pixel Size = (0.500000000000000,-0.500000000000000)
> Corner Coordinates:
> Upper Left  (   13000.000,  606250.000) (  3d15' 4.06"E, 53d25'28.87"N)
> Lower Left  (   13000.000,  306250.000) (  3d22'34.17"E, 50d43'46.25"N)
> Upper Right (  279000.000,  606250.000) (  7d15'12.50"E, 53d25'45.07"N)
> Lower Right (  279000.000,  306250.000) (  7d 8'39.35"E, 50d44' 1.23"N)
> Center      (  146000.000,  456250.000) (  5d15'22.63"E, 52d 5'43.48"N)
> Band 1 Block=128x128 Type=Float32, ColorInterp=Gray
>   NoData Value=-3.4028234663852901e+038
>
> To be more precise. I have 1351 tiff-files with a total size of 579 GB.

Suggestion: try r.external as well since it avoids the true import.
Would that work?

Markus