Broadband Validation Events

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Overview

The Broadband Platform 11.2.2 provides three primary codebases for seismogram synthesis:

  • URS
  • UCSB
  • UDSU


Three validation events are provided in the Broadband Platform:

  • Northridge
  • Landers
  • Loma Prieta


Each of these events will be tested for each codebase. Although the platform allows codebases to be mixed and matched for low-frequency seismogram synthesis, high-frequency seismogram synthesis, and site response, validation events will be simulated with only a single codebase for now. Thus, there are nine unique simulation possibilities:

  • Northridge with URS
  • Northridge with UCSB
  • Northridge with SDSU
  • Landers with URS
  • Landers with UCSB
  • Landers with SDSU
  • Loma Prieta with URS
  • Loma Prieta with UCSB
  • Loma Prieta with SDSU


These nine simulations will be run on both broadband.usc.edu and USC HPCC, and the results will be compared for accuracy.


Run Commands

The validation simulations were run using the standard run_bbp_2G.py start script. The following lists the run commands used with each codebase:

URS Simulations: 

/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/nr_options_urs.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/nr_urs_validation.log
/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/lp_options_urs.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/lp_urs_validation.log
/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/la_options_urs.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/la_urs_validation.log

UCSB Simulations: 

/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/nr_options_ucsb.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/nr_ucsb_validation.log
/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/lp_options_ucsb.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/lp_ucsb_validation.log
/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/la_options_ucsb.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/la_ucsb_validation.log

SDSU Simulations: 

/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/nr_options_sdsu.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/nr_sdsu_validation.log
/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/lp_options_sdsu.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/lp_sdsu_validation.log
/home/broadband-01/patrices/11.2.2/bbp_2g/comps/run_bbp_2G.py -o /home/broadband-01/patrices/study/validation/la_options_sdsu.txt -l /home/broadband-01/patrices/11.2.2/bbp_2g/logs/la_sdsu_validation.log

Where the option .txt files are provided here: http://earth.usc.edu/~patrices/downloads/bbp_validation_option_files.tar


broadband.usc.edu versus HPCC cluster

Broadband.usc.edu:

Codebase Northridge Landers Loma Prieta
URS Complete Complete Complete
UCSB Complete Complete
Fixed (Python Exception 1) 		Failure (Python Exception 2)
SDSU Failure (Python Exception 5) Failure (Python Exception 3) Complete
Fixed (Python Exception 4)


USC HPCC:

Codebase Northridge Landers Loma Prieta
URS Complete Complete Complete
UCSB Complete Complete
Fixed (Python Exception 1) 		Failure (Python Exception 2)
SDSU Failure (Python Exception 5) Failure (Python Exception 3) Complete
Fixed (Python Exception 4)


Match Broadband vs HPCC:

Codebase Northridge Landers Lome Prieta
URS Identical Identical Identical
UCSB Differ (http://earth.usc.edu/~patrices/downloads/bbp_validation_ucsb_nr.tar.gz) Differ (http://earth.usc.edu/~patrices/downloads/bbp_validation_ucsb_la.tar.gz) Failure
SDSU Failure Failure Differ (http://earth.usc.edu/~patrices/downloads/bbp_validation_sdsu_lp.tar.gz)


Python Exceptions / Errors:

  1. IOError: [Errno 2] No such file or directory: '/export/broadband-01/patrices/11.2.2/bbp_2g/tmpdata/4255795/luc.3comp'. Solution is to rename UCSB LA/LP Green's functions to correct names expected by the platform.
  2. IOError: [Errno 2] No such file or directory: '/export/broadband-01/patrices/11.2.2/bbp_2g/tmpdata/4255790/lgpc.3comp'. Same solution as #1.
  3. IOError: [Errno 2] No such file or directory: '/export/broadband-01/patrices/11.2.2/bbp_2g/indata/4255183/stations.dat'. Same solution as #5.
  4. IOError: [Errno 2] No such file or directory: '/export/broadband-01/patrices/11.2.2/bbp_2g/indata/4255178/stations.dat' Same solution as #5.
  5. IOError: [Errno 2] No such file or directory: '/export/broadband-01/patrices/11.2.2/bbp_2g/indata/4252651/stations_kappa.dat'. Solution is to add $BBP_INSTALL_GF/sdsu/Northridge/stations_kappa.dat to the stage-in file list for the HF module in run_bbp_2G.py. Specifically, add the following at run_bbp_2G.py:L279:
		elif codebase=="SDSU":
			hf_module.addStageFile(val_obj.getInput("SDSU", "stations"))
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