[GRASS-dev] r.viewshed -memory problem

[Markus Metz]

On Tue, Jan 10, 2012 at 1:03 PM, Jan Trochta <j.trochta at 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 at 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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