[GRASS-dev] [GRASS GIS] #520: r.terraflow/iostream does not respect STREAM_DIR option

GRASS GIS trac at osgeo.org
Fri Mar 6 07:31:08 EST 2009

#520: r.terraflow/iostream does not respect STREAM_DIR option
 Reporter:  mmetz   |       Owner:  grass-dev at lists.osgeo.org
     Type:  defect  |      Status:  new                      
 Priority:  major   |   Milestone:  6.4.0                    
Component:  Raster  |     Version:  svn-develbranch6         
 Keywords:          |    Platform:  All                      
      Cpu:  All     |  
 In r.terraflow, the default directory for temporary files is set to
 /var/tmp, contrary to GRASS policy. Further on, specifying a temporary
 directory with option STREAM_DIR is ignored, /var/tmp is used anyway.

 For the analysis I want to run, r.terraflow wants "at least 25.12G" (quote
 from r.terraflow output) of disk space. That much space is not available
 on the partition where my /var/tmp is. For such cases I have a separate
 hard drive with several 100 GB of free space and tuned for speed. At least
 for me, r.terraflow does not work on massive grids as long as it does not
 use the given STREAM_DIR.

 devbr_6 r36206 Linux 64bit

 BTW, r.watershed does the job for me in about 15 minutes, peak memory
 consumption is about 7GB during A* Search, after that less.

Ticket URL: <http://trac.osgeo.org/grass/ticket/520>
GRASS GIS <http://grass.osgeo.org>

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