Hello,
I’m taking the liberty to post a message. I work with windows 11, Qgis 3.34.13. I work with OrfeoToolbox 9 via Qgis interface (GenericRegionMerging segmentation module). Please find below the characteristics of my Windows station:
Name of the operating system Microsoft Windows 11 Professional
Type PC based on x64
Processor 13th Gen Intel(R) Core(TM) i7-13700H, 2400 MHz, 14 core(s), 20 logical processor(s)
Installed physical memory (RAM) 32.0 GB
Total physical memory 31.7 GB
Available physical memory 17.8 GB
Total virtual memory 39.4 GB
Available virtual memory 23.0 GB
Space for the swap file 7.75 GB
I manage to generate segmentations without error messages on small areas. But as soon as my input image is larger, I am faced with problems probably memory limitations. I share the error messages.
Could you share some recommendations? Should I change the memory allocation currently allocated to Orfeotoolbox? To Qgis? Or change the strategy in terms of processor solicitation? Many thanks.
2025-02-24 10:39:57 (INFO) GenericRegionMerging: Default RAM limit for OTB is 256 MB
2025-02-24 10:39:57 (INFO) GenericRegionMerging: GDAL maximum cache size is 1621 MB
2025-02-24 10:39:57 (INFO) GenericRegionMerging: OTB will use at most 20 threads
2025-02-24 10:39:57 (INFO): Loading metadata from official product
2025-02-24 10:45:37 (FATAL) GenericRegionMerging: Caught std::exception during application execution: bad allocation
Execution completed in 361.86 secondes (6 minutes 2 secondes)
Résultats:
XXXXXXXXXXXXX/Process/AE_GRM_100_0.9_0.5.tif'}