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Instruction-level parallel processing.

J A Fisher, R Rau

    Science (New York, N.Y.)
    |September 13, 1991
    PubMed
    Summary
    This summary is machine-generated.

    Microprocessor performance is rapidly increasing due to architectural improvements and circuit speed. Instruction-level parallelism (ILP) is a key technology for future high-performance processors.

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    Area of Science:

    • Computer Engineering
    • Computer Architecture

    Background:

    • Microprocessor performance has grown ~50% annually for 20 years through architectural and circuit improvements.
    • This growth has been transparent to programmers, enabling widespread computer adoption.

    Purpose of the Study:

    • To provide an overview of instruction-level parallelism (ILP).
    • To emphasize ILP architectures and necessary compiler techniques.

    Main Methods:

    • Discussion of superscalar, VLIW (Very Long Instruction Word), and dataflow processor architectures.
    • Exploration of compiler techniques for effective ILP utilization.

    Main Results:

    • ILP enables transparent parallel execution of low-level computer operations.

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  • ILP promises significant performance gains, potentially surpassing supercomputers like CRAY-IS.

    • Conclusions:

    • ILP is crucial for continued microprocessor performance growth.
    • Effective compiler techniques are essential for realizing the full potential of ILP architectures.