Comparing SIMD and MIMD Programming Modes

The Connection Machine CM-5 supports both SIMD and MIMD programming modes. The SIMD mode is simulated over the MIMD mode. This simulation is likely to lead to a loss of performance in SIMD programs. This paper describes a comparison of the two programming modes with CM Fortran and message-passing Fo...

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Vydané v:Journal of parallel and distributed computing Ročník 35; číslo 1; s. 91 - 96
Hlavní autori: Ganesan, Ravikanth, Govindarajan, Kannan, Wu, Min-You
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: San Diego, CA Elsevier Inc 25.05.1996
Elsevier
Predmet:
Applied sciences
Computer science; control theory; systems
Computer systems performance. Reliability
Computers, microcomputers
Electronics
Exact sciences and technology
Hardware
Software
Software engineering
Programming environment
SIMD computer
Program performance
Programming
FORTRAN
Arithmetic operation
MIMD computer
Comparative study
Message transmission
Communication
ISSN:0743-7315, 1096-0848
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Shrnutí:The Connection Machine CM-5 supports both SIMD and MIMD programming modes. The SIMD mode is simulated over the MIMD mode. This simulation is likely to lead to a loss of performance in SIMD programs. This paper describes a comparison of the two programming modes with CM Fortran and message-passing Fortran. Two kinds of benchmarks are discussed. The first kind consists of synthetic benchmarks in which we measure time for basic arithmetic operations and communication time. The second kind consists of application benchmarks. The experimental results conclusively show that message-passing Fortran performs considerably better than CM Fortran. While the CM-5 is obsolete, these issues show up in the T3D and other current machines.
ISSN:0743-7315
1096-0848
DOI:10.1006/jpdc.1996.0071