Broadband Validation Events

Overview

The broadband platform 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 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.