[GRASS-dev] [GRASS GIS] #2854: results in winGRASS7 32bit vs 64bit: should they be identical?

[GRASS GIS]

#2854: results in winGRASS7 32bit vs 64bit: should they be identical?
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  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 neteler):

 Replying to [comment:4 hellik]:
 ...

 {{{
 > minimum: -8.14907e-010
 > maximum: 4.65661e-010
 > range: 1.28057e-009
 > mean: -1.12517e-012
 > mean of absolute values: 1.73591e-012
 > standard deviation: 0
 > variance: 0
 > variation coefficient: -0 %
 }}}


 Doesn't this qualify for "basically identical results as much as different
 architectures can achieve"?

 Some info pages (for who wants to learn more):
  * https://msdn.microsoft.com/en-us/library/0b34tf65.aspx
  * EPSILON: https://support.microsoft.com/en-us/kb/145889
  * https://msdn.microsoft.com/en-
 us/library/windows/desktop/cc308050(v=vs.85).aspx

 I'm not a CPU precision guru but to me it looks ok. Others?

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2854#comment:7>
GRASS GIS <https://grass.osgeo.org>