[GRASS-dev] [GRASS GIS] #2045: r.to.vect: use less memory

[GRASS GIS]

#2045: r.to.vect: use less memory
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  Reporter:  mlennert     |      Owner:  grass-dev@…
      Type:  enhancement  |     Status:  new
  Priority:  normal       |  Milestone:  7.0.5
 Component:  Raster       |    Version:  svn-trunk
Resolution:               |   Keywords:  r.to.vect
       CPU:  Unspecified  |   Platform:  Unspecified
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Comment (by mlennert):

 Replying to [comment:18 mmetz]:
 > Replying to [comment:16 mlennert]:
 > >
 > > {{{
 > > > export GRASS_VECTOR_LOWMEM=1
 > > > time v.build seg_full
 > > Construction de la topologie pour la carte vectorielle
 > > <seg_full at rtovecttest>...
 > > Enregistrement des primitives ...
 > > 63282475 primitives registered
 > > 397657832 vertices registered
 > > Construction des surfaces ...
 > > Processus arrêté
 > >
 > > real    84m57.309s
 > > user    19m8.872s
 > > sys     54m37.868s
 > > }}}
 >
 > Strange. Topology building should be much slower with
 GRASS_VECTOR_LOWMEM, therefore I would expect v.build with
 GRASS_VECTOR_LOWMEM to fail later, not earlier. Can you provide data and
 commands for testing?

 Data and info provided via private mail.

 Previous posters have also reported that setting GRASS_VECTOR_LOWMEM
 didn't make much of a difference, so maybe the problem is there ?

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2045#comment:19>
GRASS GIS <https://grass.osgeo.org>