NDLI: Performance Optimization and Comparison of the Alternating Direction Implicit CFD Solver on Multi-core and Many-Core Architectures

Content Provider	IET Digital Library
Author	Deng, Liang Zhao, Dan Bai, Hanli Wang, Fang
Abstract	We accelerate a double precision Alternating direction implicit (ADI) solver for three-dimensional compressible Navier-Stokes equations from our in-house Computational fluid dynamics (CFD) software on the latest multi-core and many-core architectures (Intel Sandy Bridge CPUs, Intel Many integrated core (MIC) coprocessors and NVIDIA Kepler K20c GPUs). Some performance optimization techniques are detailed discussed. We provide an in-depth analysis on the performance difference between Sandy Bridge and MIC. Experimental results show that the proposed GPU-enabled ADI solver can achieve a speedup of 5.5 on a Kepler GPU in contrast to two Sandy Bridge CPUs and our optimization techniques can improve the performance of the ADI solver by 2.5-fold on two Sandy Bridge CPUs and 1.7-fold on an Intel MIC coprocessor. We perform a cross-platform performance analysis (between GPU and MIC), which serves as case studies for developers to select the right accelerators for their target applications.
Starting Page	540
Ending Page	548
Page Count	9
ISSN	10224653
Volume Number	27
e-ISSN	20755597
Issue Number	Issue 3, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/cje/27/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/cje.2018.03.011
Journal	Chinese Journal of Electronics
Publisher Date	2018-05-01
Access Restriction	Open
Rights Holder	© Chinese Institute of Electronics
Subject Keyword	Alternating Direction Implicit CFD Solver Computational Fluid Dynamics Computational Method Cross-platform Performance Analysis Double Precision Alternating Direction Implicit Solver General Fluid Dynamics Theory GPU-enabled ADI Solver Graphics Processing Units In-depth Analysis In-house Computational Fluid Dynamics Software Intel Many Integrated Core Coprocessors Intel MIC Coprocessor Intel Sandy Bridge CPUs Kepler GPU Many-core Architectures Microprocessor Chips Microprocessors And Microcomputer Multicore Multiprocessing System Navier-Stokes Equation NVIDIA Kepler K20c GPUs Parallel Algorithm Parallel Architecture Parallel Software Performance Difference Performance Optimization Technique Physics And Chemistry Computing Sandy Bridge CPU Simulation Three-dimensional Compressible Navier-Stokes Equation
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering

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