View source for La Habra Simulations on Titan

== Overview ==

A series of simulations modelling the La Habra 5.1 event will be performed on ORNL Titan with in order to address these scientific and computational goals:

* Demonstrate that Hercules-GPU software is in production status and evaluate its performance versus the CPU version
* Evaluate goodness of fit for synthetic waveforms versus observed at 1.0 Hz, using Po Chen's updated CVM-S4 velocity model as the material properties source for the simulation.
* [Optionally] Validate the simulation results generated by Hercules-GPU and AWP-GPU


== Solver Parameters ==


{| class="wikitable" border="1"
|-
! Parameter
! Value
! Notes
|-
| Frequency
| 1.0 Hz
| 
|-
| Simulation Length
| 100 s
| 
|-
| Delta T
| 0.001
| ?
|-
| Plane Output Resolution
| 250m
| ?
|-
| I/O Print Rate
| every 10 steps
| ?
|-
| Station List
| [[File:lahabra_titan_stations.txt]]
| ?
|-
| Software Version
| Hercules-GPU i3
|
|}



== Simulation Box / Velocity Model ==

{| class="wikitable" border="1"
|-
! Parameter
! Value
! Notes
|-
| Dimensions (km)
| 180 x 135 x 61.875
| 
|-
| Bounding Box (LL)
| ?
| 
|-
| UCVM Version
| ?
| No heterogeneities
|-
| Velocity Model Version
| CVM-S4 v26
| ?
|- 
|Miniumum Vs
| 500 m/s
| ?
|-
| Samples per wavelength
| 8
|
|-
| Hercules Etree
| TBD
|
|}


== Source Parameters ==

{| class="wikitable" border="1"
|-
! Parameter
! Value
! Notes
|-
| Origin Time
| 2014/03/29 04:09:42.97
| Source: En-Jui
|-
| Origin Location
| -117.930; 33.922;  5.0km
| Source: En-Jui
|-
| Strike/Dip/Rake
| 134/55/155
| Source: En-Jui
|-
| Slip Function
| ?
| ?
|}


== References ==

# Bielak, J., H. Karaoglu, and R. Taborda, 2011. Memory-efficient displacement-based internal friction for wave propagation simulation, Geophysics, 76(6):T131-T145.
# Taborda, R., Lopez, J., Karaoglu, H., Urbanic, J., and Bielak, J. (2010). Speeding up ﬁnite element wave propagation for large-scale earthquake simulations. Technical Report CMU-PDL-10-109, Carnegie Mellon University, Parallel Data Lab. 
# Tu, T., Yu, H., Ramírez-Guzmán, L., Bielak, J., Ghattas, O., Ma, K.-L., & O’Hallaron, D.R., 2006. From mesh generation to scientific visualization: an end-to-end approach to parallel supercomputing, in Proceedings of the 2006 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis, p. 15, IEEE Computer Society, Tampa, Florida.