While processing all the steps before StaMPS Export, CPU utilization is almost 10-70% but while running the StaMPS Export step, CPU utilization is 1-10% only. I given 100GB for SNAP in sanp.config file.
the stamps export currently “hangs” because it wants to access SRTM data. It will not even start writing the data, which explains the low CPU usage. We have created a ticket for this here and let you know once it has been resolved: https://senbox.atlassian.net/jira/software/c/projects/SITBX/issues/SITBX-834
I processed successfully Stamps Export, After that i used below command, Here i found that mean amplitude is zero.
root@DESKTOP-4HUO8B9:/mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps# mt_prep_snap 20180929 /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps/ 0.4
mt_prep_snap Andy Hooper, August 2017
Amplitude Dispersion Threshold: 0.4
Processing 1 patch(es) in range and 1 in azimuth
STAMPS: Undefined variable.
opening /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20171121.rslc…
WARNING : SLC /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20171121.rslchas ZERO mean amplitude
Mean amplitude = 0
Number of pixels with zero amplitude = 171058992
Number of pixels with amplitude different than zero = 0
opening /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20171203.rslc…
WARNING : SLC /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20171203.rslchas ZERO mean amplitude
Mean amplitude = 0
Number of pixels with zero amplitude = 171058992
Number of pixels with amplitude different than zero = 0
opening /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20171215.rslc…
WARNING : SLC /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20171215.rslchas ZERO mean amplitude
Mean amplitude = 0
Number of pixels with zero amplitude = 171058992
Number of pixels with amplitude different than zero = 0
opening /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20171227.rslc…
WARNING : SLC /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20171227.rslchas ZERO mean amplitude
Mean amplitude = 0
Number of pixels with zero amplitude = 171058992
Number of pixels with amplitude different than zero = 0
opening /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20180108.rslc…
WARNING : SLC /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20180108.rslchas ZERO mean amplitude
Mean amplitude = 0
Number of pixels with zero amplitude = 171058992
Number of pixels with amplitude different than zero = 0
opening /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20180120.rslc…
WARNING : SLC /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20180120.rslchas ZERO mean amplitude
Mean amplitude = 0
Number of pixels with zero amplitude = 171058992
Number of pixels with amplitude different than zero = 0
opening /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20180201.rslc…
WARNING : SLC /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20180201.rslchas ZERO mean amplitude
Mean amplitude = 0
Number of pixels with zero amplitude = 171058992
Number of pixels with amplitude different than zero = 0
opening /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20180213.rslc…
WARNING : SLC /mnt/f/Ahmedabad_zip/processing_steps/8_PSi_Stamps//rslc/20180213.rslchas ZERO mean amplitude
Mean amplitude = 0
SNAP7 Stamps Export is running fine compared to SNAP8. Because i check the SNAP7 output in STAMPS, it was running fine.
Please give me some solution for this.
Up to Back-Geocoding step all the intensity plots showing intensity values. After ESD step except master image all slave images are showing zero amplitude.
But all the steps are processing smoothly. I don’t know why it is?
SNAP STDOUT:INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: GDAL not found on system. Internal GDAL 3.0.0 from distribution will be used. (f1)
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.0.0 set to be used by SNAP.
INFO: org.esa.snap.core.util.EngineVersionCheckActivator: Please check regularly for new updates for the best SNAP experience.
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.0.0 set to be used by SNAP.
Executing processing graph
INFO: org.hsqldb.persist.Logger: dataFileCache open start
done.
Error: [NodeId: Enhanced-Spectral-Diversity] Operator ‘SpectralDiversityOp’: Unknown element ‘useSuppliedShifts’
– org.jblas INFO Deleting /tmp/jblas6437803665133480695/libjblas_arch_flavor.so
– org.jblas INFO Deleting /tmp/jblas6437803665133480695/libjblas.so
– org.jblas INFO Deleting /tmp/jblas6437803665133480695/libgfortran-4.so
– org.jblas INFO Deleting /tmp/jblas6437803665133480695/libquadmath-0.so
– org.jblas INFO Deleting /tmp/jblas6437803665133480695
SNAP STDOUT:INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: GDAL not found on system. Internal GDAL 3.0.0 from distribution will be used. (f1)
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.0.0 set to be used by SNAP.
INFO: org.esa.snap.core.util.EngineVersionCheckActivator: Please check regularly for new updates for the best SNAP experience.
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Internal GDAL 3.0.0 set to be used by SNAP.
Executing processing graph
INFO: org.hsqldb.persist.Logger: dataFileCache open start
done.
Error: [NodeId: Enhanced-Spectral-Diversity] Operator ‘SpectralDiversityOp’: Unknown element ‘useSuppliedShifts’
– org.jblas INFO Deleting /tmp/jblas8272950549844079550/libjblas_arch_flavor.so
– org.jblas INFO Deleting /tmp/jblas8272950549844079550/libjblas.so
– org.jblas INFO Deleting /tmp/jblas8272950549844079550/libgfortran-4.so
– org.jblas INFO Deleting /tmp/jblas8272950549844079550/libquadmath-0.so
– org.jblas INFO Deleting /tmp/jblas8272950549844079550
[1] Finished process in 15.3953671455 seconds.
I changed those two lines, whatever you suggested but still i’m getting this error.
While running this Snap2stamps python script in Ubuntu, I just copied graphs and bin folder to my working directory. Then i processed
python2 slaves_prep.py project.conf
python2 splitting_slaves.py project.conf
the above two ran successfully,
but while running the below step is is creating error,
3.python coreg_ifg_topsar.py project.conf