[GRASS-dev] r.viewshed -memory problem

[Jan Trochta]

I tried decrease resolution to 0.2 and its work.

g.region -p:

projection: 99 (Krovak)
zone:       0
datum:      towgs84=570.8,85.7,462.8,4.998,1.587,5.261,3.56
ellipsoid:  bessel
north:      -1158293.493
south:      -1159681.061
west:       -804210.292
east:       -803341.459
nsres:      0.09999769
ewres:      0.1000038
rows:       13876
cols:       8688
cells:      120554688

Jan



Dne 10. ledna 2012 14:09 Markus Metz
<markus.metz.giswork na googlemail.com> napsal(a):
> On Tue, Jan 10, 2012 at 1:03 PM, Jan Trochta <j.trochta na gmail.com> wrote:
>> Hi Folks,
>> I am try to use GRASS7 SVN on win 7. I tested new modul r.viewshed on
>> large dataset. But some problem with memory.
>> not shure if it is my mistake or bug.
>> Jan Trochta
>>
> The memory-related warnings can be ignored. The limit of 500MB is
> exceeded by 4MB or 0.8%, nothing tragic. The error
> ami_single_temp_name: mktemp failed: : File exists
> is tragic, however.
>
> The problem could be related to wrong directory separators used by
> ami_single_temp_name (/ instead of \), needs testing. But it's
> definitively not your mistake.
>
> Markus M
>
>
>>
>> r.viewshed -e --overwrite --verbose input=STRomy na boubin output=pk
>> coordinate=-803821.575747913,-1158866.72289775 max_dist=1500
>> Memory manager registering memory in MM_WARN_ON_MEMORY_EXCEEDED mode.
>> Nodata value set to -1.#QNAN0
>> rows=14293, cols=12816, total = 183179088
>> In-memory memory usage is 18318011328 B (17469 MB),                        max mem
>> allowed=524288000 B(500MB)
>> *****  EXTERNAL_MEMORY MODE  *****
>> Intermediate files will not be deleted                        in case of
>> abnormal termination.
>> To save space delete these files manually!
>> Estimated size active structure:
>> (key=64, ptr=4, total node=80 B)
>> Total= 1143440 B
>> Start sweeping.
>> Computing events ...
>> Sorting events...
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 2520B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 2598B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 2676B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 2754B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 2832B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 2910B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 2988B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3066B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3144B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3222B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3300B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3378B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3456B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3534B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3612B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3690B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3768B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3846B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 3924B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 4002B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 4080B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 4158B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 4236B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 4314B.
>> MM warning: limit=524288000B. allocating 261881248B.  limit
>> exceeded by 4392B.
>> ami_single_temp_name: mktemp failed: : File exists
>> Assertion failed: 0, file ami_stream.cpp, line 97
>> This application has requested the Runtime to terminate it
>> in an unusual way.
>> Please contact the application's support team for more
>> information.
>> (Tue Jan 10 12:57:51 2012) Command finished (17 min 22 sec)
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