[GRASS-dev] [GRASS GIS] #2854: results in winGRASS7 32bit vs 64bit: should they be identical?
GRASS GIS
trac at osgeo.org
Tue Mar 8 05:07:02 PST 2016
#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: 7.0.4
Component: Raster | Version: svn-releasebranch70
Resolution: | Keywords:
CPU: x86-64 | Platform: MSWindows 7
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Comment (by glynn):
Replying to [comment:15 hellik]:
> some tests shows that some examples in manuals (modules and addons)
seems not to work due to this issue in winGRASS 7 64-it.
>
> what what be a usable solution?
Fix the examples.
There are reasons why building for deterministic floating point might be
worth the performance cost, but examples relying upon 80-bit intermediate
precision isn't such a reason, IMHO.
Can you identify the examples in question? Is it just a case of performing
approximate-equality comparisons with too low a tolerance?
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Ticket URL: <https://trac.osgeo.org/grass/ticket/2854#comment:16>
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