Questions tagged [memory]
memory is the process in which information is encoded, stored, and retrieved.
146 questions
0 votes
1 answer
82 views
Most efficient way to vectorize rasters and do analyses without saving the vectors?
I have a large number of rasters (ca. 6000) representing species distributions that I would need to vectorize, to then do some analyses on the vectors in GRASS GIS. I would need to calculate the ...
- 333
0 votes
1 answer
59 views
Earth Engine Error when exporting results of mapped reducers: Execution failed; out of memory
I am trying to do a couple of emissions calculations using functions that reduce imagery over a large number of features. I imported a land cover image collection and reclassified it into 4 classes. ...
- 93
5 votes
2 answers
202 views
Creating buffers for big MultiPolygon without out-of-memory crash in QGIS
I have a vector layer with a multipolygon with over a million single polygons (houses). I need to create a 1km and a 2km buffer around it. When I use Vector geometry - Multi-ring buffer my machine ...
- 125
2 votes
0 answers
71 views
QGIS - Memory Error when merging large raster file
I want to merge 2 large raster files (7GB+8GB) I got error messages, with a final Unable to allocate 14.2 GiB for an array with shape (53701, 35412) and data type int64 I already manage to generate ...
- 31
0 votes
0 answers
59 views
How to free RAM in my QGIS processing script
My PyQGIS script is designed to work on a set of roads, it uses a nested for loop to iterate through each road, prepare a raster based on the line segment's bounds, place points along the line segment,...
- 1
2 votes
0 answers
93 views
Memory management in PyQGIS during loop
I have a issue about memory management in PyQGIS during loop. I'm writing a code where there is a while loop. During the operatione inside the loop that are almost the same,I noticed that the ...
- 51
0 votes
1 answer
191 views
Re-writing FeatureLayer to memory causes ArcGIS Pro to Crash [closed]
I am working with Jupyter notebooks in ArcGIS Pro and would like to write some Feature layers to memory to speed up my operation. Currently it is taking roughly 24 hours. I have to emphasize it is ...
- 103
0 votes
1 answer
156 views
Networkx memory usage on steiner tree algorithm in QGIS
I'm trying to run a steiner tree for some points on a road using networkx by a simply script in QGIS. It's my first experience with this library. The data are shapefiles and are composed as follows: ...
- 51
0 votes
1 answer
4k views
GEE, Error generating chart: User memory limit exceeded
I want to make a scatter plot between a list of NDVI values and LST values. I've tried it all. I think is a lack of best practices in my code. Here's my script: var LST = ee.ImageCollection("...
- 19
2 votes
1 answer
560 views
PyQGIS load a geopackage layer into memory
I am developing a QGIS plugin. Part of the plugin generates some memory layers that the user interacts with. When the user is done with the project session, there is a button to save the memory ...
- 61
0 votes
1 answer
950 views
Determining adjacency across elements in a GeoPandas GeoDataFrame
Main question What is an efficient (i.e., good balance of memory & processing time) way to compute adjacency using a GeoPandas GeoDataFrame? For my the rest of my question, I'll focus on the case ...
- 2,869
2 votes
1 answer
992 views
GEOSException: bad allocation when using pygeos geopandas buffer
I am running python 3.10 through Spyder with geopandas 0.12.0, geos 3.11.0 and pygeos 0.13. I am trying to buffer a shapefile containing lines. I have used this script on a similar dataset before and ...
- 307
1 vote
0 answers
56 views
QField - application size and hidden data
I am collecting some data using QField in Ethiopia. Usually, I am collecting points (.shp) with photos (text field with link to the photo/attachment). I accidentally deleted the DCIM folder. However, ...
- 11
1 vote
1 answer
189 views
Deleting qgis setup.exe from download folder
I need to clean up the download folder in order to liberate space in C drive, but I have realised that the file qgis setup.exe is in this folder. Can I delete the qgis setup.exe file from the download ...
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1 vote
1 answer
559 views
How does "is_child_algorithm=True" work in processing.run in Python QGIS script?
I don't understand how "is_child_algorithm" works in processing.run. Premise: I created a script in python. This script uses a loop, iterating thousands of times over a field on a layer. I ...
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