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Partial Overhaul and Initial Parallel Optimization of KINETICS, a Coupled Dynamics and Chemistry Atmosphere ModelKINETICS is a coupled dynamics and chemistry atmosphere model that is data intensive and computationally demanding. The potential performance gain from using a supercomputer motivates the adaptation from a serial version to a parallelized one. Although the initial parallelization had been done, bottlenecks caused by an abundance of communication calls between processors led to an unfavorable drop in performance. Before starting on the parallel optimization process, a partial overhaul was required because a large emphasis was placed on streamlining the code for user convenience and revising the program to accommodate the new supercomputers at Caltech and JPL. After the first round of optimizations, the partial runtime was reduced by a factor of 23; however, performance gains are dependent on the size of the data, the number of processors requested, and the computer used.
Document ID
20150005628
Document Type
Other
External Source(s)
Authors
Nguyen, Howard (San Francisco State Univ. San Francisco, CA, United States)
Willacy, Karen (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Allen, Mark (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
April 13, 2015
Publication Date
December 21, 2012
Subject Category
Computer Programming and Software
Earth Resources and Remote Sensing
Computer Systems
Distribution Limits
Public
Copyright
Other
Keywords
KINETICS
FORTRAN
planetary atmospheres.