Dear all
I’m trying to run r.watershed on a ASTER DEM (with the size of Portugal) but I’m getting this error:
r.watershed elevation=DemPt@ETRS89 stream=stream threshold=10000
SECTION 1a (of 5): Initiating Memory.
ERROR: G_malloc: unable to allocate 1515173064 bytes at init_vars.c:134
Subprocess failed with exit code 1
category information for [stream] in [ETRS89] missing or invalid
What am I doing wrong?
Thanks
Best
I’m using GRASS 6.4.2 and I’m on Windows 7
On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias <filipesdias@gmail.com> wrote:
Dear all
I’m trying to run r.watershed on a ASTER DEM (with the size of Portugal) but I’m getting this error:
r.watershed elevation=DemPt@ETRS89 stream=stream threshold=10000
SECTION 1a (of 5): Initiating Memory.
ERROR: G_malloc: unable to allocate 1515173064 bytes at init_vars.c:134
Subprocess failed with exit code 1
category information for [stream] in [ETRS89] missing or invalidWhat am I doing wrong?
Thanks
Best
I switched the resolution from 30x30 to 100x100 and now it works. Problem solved.
On Sun, Mar 25, 2012 at 11:12 AM, Filipe Silva Dias <filipesdias@gmail.com> wrote:
I’m using GRASS 6.4.2 and I’m on Windows 7
On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias <filipesdias@gmail.com> wrote:
Dear all
I’m trying to run r.watershed on a ASTER DEM (with the size of Portugal) but I’m getting this error:
r.watershed elevation=DemPt@ETRS89 stream=stream threshold=10000
SECTION 1a (of 5): Initiating Memory.
ERROR: G_malloc: unable to allocate 1515173064 bytes at init_vars.c:134
Subprocess failed with exit code 1
category information for [stream] in [ETRS89] missing or invalidWhat am I doing wrong?
Thanks
Best
On Sun, Mar 25, 2012 at 12:30 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:
I switched the resolution from 30x30 to 100x100 and now it works. Problem
solved.On Sun, Mar 25, 2012 at 11:12 AM, Filipe Silva Dias <filipesdias@gmail.com>
wrote:I'm using GRASS 6.4.2 and I'm on Windows 7
On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:Dear all
I'm trying to run r.watershed on a ASTER DEM (with the size of Portugal)
but I'm getting this error:r.watershed elevation=DemPt@ETRS89 stream=stream
threshold=10000
SECTION 1a (of 5): Initiating Memory.
ERROR: G_malloc: unable to allocate 1515173064 bytes at init_vars.c:134
Subprocess failed with exit code 1
category information for [stream] in [ETRS89] missing or invalidWhat am I doing wrong?
As you figured out already, the region, i.e. number of cells was too
large. In order to run r.watershed with that region (Portugal at 30m
resolution) on Windows, you would need GRASS 7 and run r.watershed
with the -m option.
Markus M
Does GRASS 7 use a different algorithm, or why is it only possible on 7? Doesn’t the -m option work in 6.4 too?
Daniel
–
B.Sc. Daniel Lee
Geschäftsführung für Forschung und Entwicklung
ISIS - International Solar Information Solutions GbR
Vertreten durch: Daniel Lee, Nepomuk Reinhard und Nils Räder
Deutschhausstr. 10
35037 Marburg
Festnetz: +49 6421 379 6256
Mobil: +49 176 6127 7269
E-Mail: Lee@isi-solutions.org
Web: http://www.isi-solutions.org
ISIS wird gefördert durch die Bundesrepublik Deutschland, Zuwendungsgeber: Bundesministerium für Wirtschaft und Technologie aufgrund eines Beschlusses des Deutschen Bundestages, sowie durch die Europäische Union, Zuwendungsgeber: Europäischer Sozialfonds.
Zusätzliche Unterstützung erhält ISIS von dem Entrepreneurship Cluster Mittelhessen, der Universität Marburg, dem Laboratory for Climatology and Remote Sensing und dem GIS-Lab Marburg.
Am 25. März 2012 12:49 schrieb Markus Metz <markus.metz.giswork@googlemail.com>:
On Sun, Mar 25, 2012 at 12:30 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:
I switched the resolution from 30x30 to 100x100 and now it works. Problem
solved.On Sun, Mar 25, 2012 at 11:12 AM, Filipe Silva Dias <filipesdias@gmail.com>
wrote:I’m using GRASS 6.4.2 and I’m on Windows 7
On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:Dear all
I’m trying to run r.watershed on a ASTER DEM (with the size of Portugal)
but I’m getting this error:r.watershed elevation=DemPt@ETRS89 stream=stream
threshold=10000
SECTION 1a (of 5): Initiating Memory.
ERROR: G_malloc: unable to allocate 1515173064 bytes at init_vars.c:134
Subprocess failed with exit code 1
category information for [stream] in [ETRS89] missing or invalidWhat am I doing wrong?
As you figured out already, the region, i.e. number of cells was too
large. In order to run r.watershed with that region (Portugal at 30m
resolution) on Windows, you would need GRASS 7 and run r.watershed
with the -m option.Markus M
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user
On Sun, Mar 25, 2012 at 12:57 PM, Daniel Lee <lee@isi-solutions.org> wrote:
Does GRASS 7 use a different algorithm, or why is it only possible on 7?
Doesn't the -m option work in 6.4 too?
Yes, the -m option works in 6.4 too. But I guess that for the curent
region some of the temporary files will be larger than 2 GB and Large
File Support is needed, which is for wingrass only available in GRASS
7, not in 6.x.
Markus M
Daniel
--
B.Sc. Daniel Lee
Geschäftsführung für Forschung und Entwicklung
ISIS - International Solar Information Solutions GbR
Vertreten durch: Daniel Lee, Nepomuk Reinhard und Nils RäderDeutschhausstr. 10
35037 Marburg
Festnetz: +49 6421 379 6256
Mobil: +49 176 6127 7269
E-Mail: Lee@isi-solutions.org
Web: http://www.isi-solutions.orgISIS wird gefördert durch die Bundesrepublik Deutschland, Zuwendungsgeber:
Bundesministerium für Wirtschaft und Technologie aufgrund eines Beschlusses
des Deutschen Bundestages, sowie durch die Europäische Union,
Zuwendungsgeber: Europäischer Sozialfonds.
Zusätzliche Unterstützung erhält ISIS von dem Entrepreneurship Cluster
Mittelhessen, der Universität Marburg, dem Laboratory for Climatology and
Remote Sensing und dem GIS-Lab Marburg.Am 25. März 2012 12:49 schrieb Markus Metz
<markus.metz.giswork@googlemail.com>:On Sun, Mar 25, 2012 at 12:30 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:
> I switched the resolution from 30x30 to 100x100 and now it works.
> Problem
> solved.
>
>
> On Sun, Mar 25, 2012 at 11:12 AM, Filipe Silva Dias
> <filipesdias@gmail.com>
> wrote:
>>
>> I'm using GRASS 6.4.2 and I'm on Windows 7
>>
>>
>> On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias
>> <filipesdias@gmail.com> wrote:
>>>
>>> Dear all
>>>
>>> I'm trying to run r.watershed on a ASTER DEM (with the size of
>>> Portugal)
>>> but I'm getting this error:
>>>
>>> r.watershed elevation=DemPt@ETRS89 stream=stream
>>> threshold=10000
>>> SECTION 1a (of 5): Initiating Memory.
>>> ERROR: G_malloc: unable to allocate 1515173064 bytes at
>>> init_vars.c:134
>>> Subprocess failed with exit code 1
>>> category information for [stream] in [ETRS89] missing or invalid
>>>
>>> What am I doing wrong?
>>>
As you figured out already, the region, i.e. number of cells was too
large. In order to run r.watershed with that region (Portugal at 30m
resolution) on Windows, you would need GRASS 7 and run r.watershed
with the -m option.Markus M
_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user
Thanks. Out of curiosity and tried with Grass 7 with -m (and 30 m resolution) and I obtained this error message:
r.watershed -m elevation=DemPT2@Grass7 threshold=10000 stream=streams
SECTION 1 beginning: Initiating Variables. 5 sections total.
SECTION 1a: Mark masked and NULL cells
SECTION 1b: Determining Offmap Flow.
SECTION 2: A* Search.
SECTION 3: Accumulating Surface Flow with MFD.
SECTION 4: Watershed determination.
SECTION 5: Closing Maps.
ERROR: Rast_make_random_colors: min (1) > max (0)
Subprocess failed with exit code 1
category information for [streams] in [Grass7] missing or invalid
On Sun, Mar 25, 2012 at 11:49 AM, Markus Metz <markus.metz.giswork@googlemail.com> wrote:
On Sun, Mar 25, 2012 at 12:30 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:
I switched the resolution from 30x30 to 100x100 and now it works. Problem
solved.On Sun, Mar 25, 2012 at 11:12 AM, Filipe Silva Dias <filipesdias@gmail.com>
wrote:I’m using GRASS 6.4.2 and I’m on Windows 7
On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:Dear all
I’m trying to run r.watershed on a ASTER DEM (with the size of Portugal)
but I’m getting this error:r.watershed elevation=DemPt@ETRS89 stream=stream
threshold=10000
SECTION 1a (of 5): Initiating Memory.
ERROR: G_malloc: unable to allocate 1515173064 bytes at init_vars.c:134
Subprocess failed with exit code 1
category information for [stream] in [ETRS89] missing or invalidWhat am I doing wrong?
As you figured out already, the region, i.e. number of cells was too
large. In order to run r.watershed with that region (Portugal at 30m
resolution) on Windows, you would need GRASS 7 and run r.watershed
with the -m option.Markus M
On Sun, Mar 25, 2012 at 2:59 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:
Thanks. Out of curiosity and tried with Grass 7 with -m (and 30 m
resolution) and I obtained this error message:r.watershed -m elevation=DemPT2@Grass7 threshold=10000
stream=streams
SECTION 1 beginning: Initiating Variables. 5 sections total.
SECTION 1a: Mark masked and NULL cells
SECTION 1b: Determining Offmap Flow.
SECTION 2: A* Search.
SECTION 3: Accumulating Surface Flow with MFD.
SECTION 4: Watershed determination.
SECTION 5: Closing Maps.
ERROR: Rast_make_random_colors: min (1) > max (0)
Apparently no basins were determined, probably because the threshold
of 10000 for flow accumulation was never reached. Maybe the current
region was either too small or did not cover parts of the DEM DemPT2?
BTW, if you want to try out GRASS 7 in a separate mapset, you don't
need to copy over the DEM if you just want to read it. Within the
mapset Grass7, the following commands should work:
g.region -p rast=DemPt@ETRS89
r.watershed elevation=DemPt@ETRS89 stream=stream threshold=10000 -m
Markus M
Subprocess failed with exit code 1
category information for [streams] in [Grass7] missing or invalidOn Sun, Mar 25, 2012 at 11:49 AM, Markus Metz
<markus.metz.giswork@googlemail.com> wrote:On Sun, Mar 25, 2012 at 12:30 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:
> I switched the resolution from 30x30 to 100x100 and now it works.
> Problem
> solved.
>
>
> On Sun, Mar 25, 2012 at 11:12 AM, Filipe Silva Dias
> <filipesdias@gmail.com>
> wrote:
>>
>> I'm using GRASS 6.4.2 and I'm on Windows 7
>>
>>
>> On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias
>> <filipesdias@gmail.com> wrote:
>>>
>>> Dear all
>>>
>>> I'm trying to run r.watershed on a ASTER DEM (with the size of
>>> Portugal)
>>> but I'm getting this error:
>>>
>>> r.watershed elevation=DemPt@ETRS89 stream=stream
>>> threshold=10000
>>> SECTION 1a (of 5): Initiating Memory.
>>> ERROR: G_malloc: unable to allocate 1515173064 bytes at
>>> init_vars.c:134
>>> Subprocess failed with exit code 1
>>> category information for [stream] in [ETRS89] missing or invalid
>>>
>>> What am I doing wrong?
>>>
As you figured out already, the region, i.e. number of cells was too
large. In order to run r.watershed with that region (Portugal at 30m
resolution) on Windows, you would need GRASS 7 and run r.watershed
with the -m option.Markus M
Thanks, it took a while but it worked.
On Mon, Mar 26, 2012 at 3:11 PM, Markus Metz <markus.metz.giswork@googlemail.com> wrote:
On Sun, Mar 25, 2012 at 2:59 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:Thanks. Out of curiosity and tried with Grass 7 with -m (and 30 m
resolution) and I obtained this error message:r.watershed -m elevation=DemPT2@Grass7 threshold=10000
stream=streams
SECTION 1 beginning: Initiating Variables. 5 sections total.
SECTION 1a: Mark masked and NULL cells
SECTION 1b: Determining Offmap Flow.
SECTION 2: A* Search.
SECTION 3: Accumulating Surface Flow with MFD.
SECTION 4: Watershed determination.
SECTION 5: Closing Maps.
ERROR: Rast_make_random_colors: min (1) > max (0)Apparently no basins were determined, probably because the threshold
of 10000 for flow accumulation was never reached. Maybe the current
region was either too small or did not cover parts of the DEM DemPT2?BTW, if you want to try out GRASS 7 in a separate mapset, you don’t
need to copy over the DEM if you just want to read it. Within the
mapset Grass7, the following commands should work:
g.region -p rast=DemPt@ETRS89
r.watershed elevation=DemPt@ETRS89 stream=stream threshold=10000 -mMarkus M
Subprocess failed with exit code 1
category information for [streams] in [Grass7] missing or invalidOn Sun, Mar 25, 2012 at 11:49 AM, Markus Metz
<markus.metz.giswork@googlemail.com> wrote:On Sun, Mar 25, 2012 at 12:30 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:I switched the resolution from 30x30 to 100x100 and now it works.
Problem
solved.On Sun, Mar 25, 2012 at 11:12 AM, Filipe Silva Dias
<filipesdias@gmail.com>
wrote:I’m using GRASS 6.4.2 and I’m on Windows 7
On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:Dear all
I’m trying to run r.watershed on a ASTER DEM (with the size of
Portugal)
but I’m getting this error:r.watershed elevation=DemPt@ETRS89 stream=stream
threshold=10000
SECTION 1a (of 5): Initiating Memory.
ERROR: G_malloc: unable to allocate 1515173064 bytes at
init_vars.c:134
Subprocess failed with exit code 1
category information for [stream] in [ETRS89] missing or invalidWhat am I doing wrong?
As you figured out already, the region, i.e. number of cells was too
large. In order to run r.watershed with that region (Portugal at 30m
resolution) on Windows, you would need GRASS 7 and run r.watershed
with the -m option.Markus M
On Mon, Mar 26, 2012 at 5:32 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:
Thanks, it took a while but it worked.
You are welcome to compare it to alternatives 
On Mon, Mar 26, 2012 at 3:11 PM, Markus Metz
<markus.metz.giswork@googlemail.com> wrote:On Sun, Mar 25, 2012 at 2:59 PM, Filipe Silva Dias
<filipesdias@gmail.com> wrote:
> Thanks. Out of curiosity and tried with Grass 7 with -m (and 30 m
> resolution) and I obtained this error message:
>
> r.watershed -m elevation=DemPT2@Grass7 threshold=10000
> stream=streams
> SECTION 1 beginning: Initiating Variables. 5 sections total.
> SECTION 1a: Mark masked and NULL cells
> SECTION 1b: Determining Offmap Flow.
> SECTION 2: A* Search.
> SECTION 3: Accumulating Surface Flow with MFD.
> SECTION 4: Watershed determination.
> SECTION 5: Closing Maps.
> ERROR: Rast_make_random_colors: min (1) > max (0)Apparently no basins were determined, probably because the threshold
of 10000 for flow accumulation was never reached. Maybe the current
region was either too small or did not cover parts of the DEM DemPT2?BTW, if you want to try out GRASS 7 in a separate mapset, you don't
need to copy over the DEM if you just want to read it. Within the
mapset Grass7, the following commands should work:
g.region -p rast=DemPt@ETRS89
r.watershed elevation=DemPt@ETRS89 stream=stream threshold=10000 -mMarkus M
>
> Subprocess failed with exit code 1
> category information for [streams] in [Grass7] missing or invalid
>
>
>
>
> On Sun, Mar 25, 2012 at 11:49 AM, Markus Metz
> <markus.metz.giswork@googlemail.com> wrote:
>>
>> On Sun, Mar 25, 2012 at 12:30 PM, Filipe Silva Dias
>> <filipesdias@gmail.com> wrote:
>> > I switched the resolution from 30x30 to 100x100 and now it works.
>> > Problem
>> > solved.
>> >
>> >
>> > On Sun, Mar 25, 2012 at 11:12 AM, Filipe Silva Dias
>> > <filipesdias@gmail.com>
>> > wrote:
>> >>
>> >> I'm using GRASS 6.4.2 and I'm on Windows 7
>> >>
>> >>
>> >> On Sun, Mar 25, 2012 at 11:11 AM, Filipe Silva Dias
>> >> <filipesdias@gmail.com> wrote:
>> >>>
>> >>> Dear all
>> >>>
>> >>> I'm trying to run r.watershed on a ASTER DEM (with the size of
>> >>> Portugal)
>> >>> but I'm getting this error:
>> >>>
>> >>> r.watershed elevation=DemPt@ETRS89 stream=stream
>> >>> threshold=10000
>> >>> SECTION 1a (of 5): Initiating Memory.
>> >>> ERROR: G_malloc: unable to allocate 1515173064 bytes at
>> >>> init_vars.c:134
>> >>> Subprocess failed with exit code 1
>> >>> category information for [stream] in [ETRS89] missing or invalid
>> >>>
>> >>> What am I doing wrong?
>> >>>
>> As you figured out already, the region, i.e. number of cells was too
>> large. In order to run r.watershed with that region (Portugal at 30m
>> resolution) on Windows, you would need GRASS 7 and run r.watershed
>> with the -m option.
>>
>> Markus M
>
>