Asynchronous Parallelization of a CFD Solver
Abdi, Daniel S.
Bitsuamlak, Girma T.
MetadataShow full item record
A Navier-Stokes equations solver is parallelized to run on a cluster of computers using the domain decomposition method. Two approaches of communication and computation are investigated, namely, synchronous and asynchronous methods. Asynchronous communication between subdomains is not commonly used inCFDcodes; however, it has a potential to alleviate scaling bottlenecks incurred due to processors having to wait for each other at designated synchronization points. A common way to avoid this idle time is to overlap asynchronous communication with computation. For this to work, however, there must be something useful and independent a processor can do while waiting for messages to arrive. We investigate an alternative approach of computation, namely, conducting asynchronous iterations to improve local subdomain solution while communication is in progress. An in-house CFD code is parallelized using message passing interface (MPI), and scalability tests are conducted that suggest asynchronous iterations are a viable way of parallelizing CFD code.
The article of record as published may be found at http://dx.doi.org/10.1155/2015/295393
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Carff, Paul F. (Monterey, California: Naval Postgraduate School, 1999-03);Current resource management systems do not provide a way to use measurements taken from an application's execution on one computer to predict that application's performance on another computer. More details are needed in ...
Chen, Chien-An; Stoleru, Radu; Xie, Geoffrey G. (IEEE, 2017);Today's integration of mobile technologies and traditional cloud computing exploits the abundant computation and storage resources in the cloud, to enhance the capabilities of end-user mobile devices. The designs that rely ...
Applied Computational Electromagnetics Society Journal. Special Issue on International Computational Electromagnetics / Volume 12, Number 1 Bastos, Joao P.; Konrad, Adalbert; Brauer, John; Naval Postgraduate School, Monterey CA (1997-01);Partial contents: 3B Splines In the Integral Equation Solution for Scattering from Bodies of Revolution; Electromagnetic Properties of a Chiral Plasma Medium; MTRT - A Modified Transverse Resonance Technique; Effect of the ...