Detailed Simulation of the Cochlea: Recent Progress Using Large Shared Memory Parallel Computers

E. Givelberg, J. Bunn and M. Rajan (2001) Detailed Simulation of the Cochlea: Recent Progress Using Large Shared Memory Parallel Computers. Technical Report. California Institute of Technology. [CaltechCACR:CACR-2001-190]

Full text available as:

PDF - Requires Adobe Acrobat Reader or other PDF viewer.

Abstract

We have developed and are refining a detailed three-dimensional computational model of the human cochlea. The model uses the immersed boundary method to calculate the fluid-structure interactions produced in response to incoming sound waves. An accurate cochlear geometry obtained from physical measurements is incorporated. The model includes a detailed and realistic description of the various elastic structures present. Initially, a macro-mechanical computational model was developed for execution on a CRAY T90 at the San Diego Supercomputing Center. This code was ported to the latest generation of shared memory high performance servers from Hewlett Packard. Using compiler generated threads and OpenMP directives, we have achieved a high degree of parallelism in the executable, which has made possible to run several large scale numerical simulation experiments to study the interesting features of the cochlear system. In this paper, we outline the methods, algorithms and software tools that were used to implement and fine tune the code, and discuss some of the simulation results.

EPrint Type:	Monograph (Technical Report)
Subjects:	All Records
ID Code:	7
Deposited By:	Sarah M. Emery
Deposited On:	05 March 2004
Record Number:	CaltechCACR:CACR-2001-190
Official Persistent URL:	http://resolver.caltech.edu/CaltechCACR:CACR-2001-190
Usage Policy:	You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.

Archive Staff Only: edit this record