[GRASS-dev] [GRASS GIS] #3427: Ask for improvement of i.segment.stats : Allow parallel work for different rasters

#3427: Ask for improvement of i.segment.stats : Allow parallel work for different
rasters
-------------------------+-------------------------
Reporter: tgrippa | Owner: grass-dev@…
     Type: enhancement | Status: new
Priority: normal | Milestone:
Component: Addons | Version: unspecified
Keywords: segment | CPU: Unspecified
Platform: Unspecified |
-------------------------+-------------------------
Hi,

I would like to ask for an improvement of i.segment.stats add-on. For the
moment, the processing workflow is serial (objects statistics computed for
the first band, e.g. blue, then on red, then on green, etc..). It could be
great if the process could be parallelized on X different cores. I'm often
computing objects statistics on +10 different rasters. This improvement
would allow for saving a lot of processing time.

Cheers,

PS: Thank you for making GRASS more and more efficient for Object-Based
image analysis.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3427&gt;
GRASS GIS <https://grass.osgeo.org>

#3427: Ask for improvement of i.segment.stats : Allow parallel work for different
rasters
--------------------------+-------------------------
  Reporter: tgrippa | Owner: grass-dev@…
      Type: enhancement | Status: closed
  Priority: normal | Milestone:
Component: Addons | Version: unspecified
Resolution: fixed | Keywords: segment
       CPU: Unspecified | Platform: Unspecified
--------------------------+-------------------------
Changes (by mlennert):

* status: new => closed
* resolution: => fixed

Comment:

In [changeset:"71626" 71626]:
{{{
#!CommitTicketReference repository="" revision="71626"
i.segment.stats: adding option to calculate raster stats in parallel
(fixes #3427)
}}}

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/3427#comment:1&gt;
GRASS GIS <https://grass.osgeo.org>

#3427: Ask for improvement of i.segment.stats : Allow parallel work for different
rasters
--------------------------+-------------------------
  Reporter: tgrippa | Owner: grass-dev@…
      Type: enhancement | Status: closed
  Priority: normal | Milestone:
Component: Addons | Version: unspecified
Resolution: fixed | Keywords: segment
       CPU: Unspecified | Platform: Unspecified
--------------------------+-------------------------

Comment (by mlennert):

Please test new version.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3427#comment:2&gt;
GRASS GIS <https://grass.osgeo.org>

#3427: Ask for improvement of i.segment.stats : Allow parallel work for different
rasters
--------------------------+-------------------------
  Reporter: tgrippa | Owner: grass-dev@…
      Type: enhancement | Status: closed
  Priority: normal | Milestone:
Component: Addons | Version: unspecified
Resolution: fixed | Keywords: segment
       CPU: Unspecified | Platform: Unspecified
--------------------------+-------------------------

Comment (by tgrippa):

Tested on Linux Mint 18.1 (MATE 64bits) and GRASS 7.3.svn (r71315). Works
perfectly. Thanks for the improvement.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/3427#comment:3&gt;
GRASS GIS <https://grass.osgeo.org>