[GRASS-dev] [GRASS GIS] #2854: results in winGRASS7 32bit vs 64bit: should they be identical?
GRASS GIS
trac at osgeo.org
Thu Jan 7 06:01:52 PST 2016
#2854: results in winGRASS7 32bit vs 64bit: should they be identical?
---------------------+---------------------------------
Reporter: hellik | Owner: grass-dev@…
Type: defect | Status: new
Priority: normal | Milestone: 7.0.3
Component: Raster | Version: svn-releasebranch70
Resolution: | Keywords:
CPU: x86-64 | Platform: MSWindows 7
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Comment (by hellik):
Replying to [comment:5 hellik]:
>
> tested with r.slope.aspect
>
>
> {{{
> r.slope.aspect elevation=elevation at PERMANENT slope=slope_wg32bit
aspect=aspect_wg32bit
> r.slope.aspect elevation=elevation at PERMANENT slope=slope_wg64bit
aspect=aspect_wg64bit
> }}}
>
> {{{
> r.mapcalc expression=diff_slope = slope_wg32bit at slope_test -
slope_wg64bit at slope_test
>
> r.univar -e map=diff_slope at slope_test
> total null and non-null cells: 2025000
> total null cells: 5696
> Of the non-null cells:
> ----------------------
> n: 2019304
> minimum: 0
> maximum: 0
> range: 0
> mean: 0
> mean of absolute values: 0
> standard deviation: 0
> variance: 0
> variation coefficient: nan %
> sum: 0
> 1st quartile: 0
> median (even number of cells): 0
> 3rd quartile: 0
> 90th percentile: 0
> }}}
{{{
r.mapcalc expression=diff_aspect = aspect_wg32bit at slope_test -
aspect_wg64bit at slope_test
r.univar -e map=diff_aspect at slope_test
total null and non-null cells: 2025000
total null cells: 5696
Of the non-null cells:
----------------------
n: 2019304
minimum: 0
maximum: 0
range: 0
mean: 0
mean of absolute values: 0
standard deviation: 0
variance: 0
variation coefficient: nan %
sum: 0
1st quartile: 0
median (even number of cells): 0
3rd quartile: 0
90th percentile: 0
}}}
--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2854#comment:6>
GRASS GIS <https://grass.osgeo.org>
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