Broadband Hanging Wall Simulation
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Revision as of 17:16, 6 October 2011 by Maechlin (talk | contribs) (→Computational Estimates for Hanging Wall Problem)
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.
Contents
Hanging Wall Specifications
Robert Graves has written a specification for a set of footwall and hanging wall simulation in this document.
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
