Broadband Hanging Wall Simulation

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Graves Hanging Wall Study

Study Specifications

This Wiki page describes the simulations that will be performed on the Broadband Platform to investigate footwall / hanging wall and directivity effects for NGA-W2. This simulation is expected to generate 205,776 3-component seismograms. Robert Graves has written a specification for a set of footwall and hanging wall simulation in this document HangingWall Specfiications 2011.

Setting Up Study Inputs and Outputs

Untar the Graves input data set:

$ tar xvf graves_hwfw_inputs.tar

Generate the three source description variations:

$ ./gen_source_input.csh

Running Study with Broadband 11.2.2

TBD

Running Study with Parallel Broadband

TBD

Computational Estimates for Hanging Wall Problem

The Footwall/Hanging wall problem has been defined as a set of (1) ruptures, (2) variations for each rupture, (3) station list for each rupture, and (4) code-bases used. A useful metric is the total number of 3 component seismograms required to completed the problem.


36 Code base combinations in Broadband v11.2.1

Stations in Station List by rupture
-------------------
Mw6.0: 105
Mw6.5: 117
Mw7.0: 163
Mw7.5: 175

Rupture Variation by magnitude
-------------------
Mw6.0:  9
Mw6.5:  9
Mw7.0: 11
Mw7.5: 11

Seismograms per run (stations * variations):
--------------------------------------------
Mw6.0: 105 * 9  =  945
Mw6.5: 117 * 9  = 1053
Mw7.0: 163 * 11 = 1793
Mw7.5: 175 * 11 = 1925
------------------
Total:            5716 seismograms per problem

Total Seismograms = 36*5716 = 205,776

Runtime Estimates:
 
(6.0 ­ 40 mins, 6.5 ­ 2 hrs, 7.0 ­ 8 hrs, 7.5 ­ 34 hrs)

Mw6.0: (9*36) runs  *40 mins = 216 hrs
Mw6.5: (9*36) runs  *2 hrs   = 648 hrs
Mw7.0: (11*36) runs *8 hrs   = 3168 hrs
Mw7.5: (11*36) runs *34 hrs  = 13464 hrs
-------------------------------------------
Total runtime (1 core): 729 Days

Downloads

TBD

Kottke Hanging Wall Study

Study Specifications

TBD

Setting Up Study Inputs

TBD

Running Study with Broadband 11.2.2

TBD

Running Study with Parallel Broadband

TBD

Downloads

TBD


Related Entries

See Also