View source for Broadband Hanging Wall Simulation

= 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 [http://hypocenter.usc.edu/research/broadband/HwFwProblem/fwhw+dir_simulation_plan-v3.pdf HangingWall Specfiications 2011].

== Setting Up Study Inputs and Outputs ==

Untar the Graves input data set:

<pre>
$ tar xvf graves_hwfw_inputs.tar
</pre>


Untar the Graves reference output data set:

<pre>
$ tar xvf graves_hwfw_outputs.tar
</pre>


Generate the three source description variations:

<pre>
$ cd BBP-Runs001
$ ./gen_source_input.csh
</pre>


== Running Study with Broadband 11.2.2 ==

Set ROOT_PATH in run_bbp-parallel.csh. It is line 16:

<pre>
set ROOT_PATH = /home/scec-02/USER/HwFw
</pre>


Ensure your BBP environment is setup according to the Broadband User Guide. Create and run the simulation workflows with this script:

<pre>
$ ./run_bbp-parallel.csh
</pre>

On a dual core system, this script will require several weeks to run.


== 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.

<pre>

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

</pre>

== 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 =
*[[Broadband Platform]]

= See Also =
*[[Main Page]]