Computer Architecture | 5. Exploiting Instruction-Level Parallelism by Pavan | Learn Smarter
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5. Exploiting Instruction-Level Parallelism

Instruction-Level Parallelism (ILP) enables processors to execute multiple instructions simultaneously, improving performance without increasing clock speed. Effective exploitation of ILP hinges on various techniques such as pipelining, superscalar architecture, and handling data and control hazards. Despite its advantages, there are inherent limitations like instruction dependency, memory latency, and power consumption that can constrain the effective utilization of ILP.

Sections

  • 5

    Exploiting Instruction-Level Parallelism

    This section reviews Instruction-Level Parallelism (ILP), its performance impact, and various techniques to exploit it.

    Learning Practice

  • 5.1

    Introduction To Instruction-Level Parallelism (Ilp)

    Instruction-Level Parallelism (ILP) is the concurrent execution of independent instructions in a processor to improve performance without increasing clock speed.

    Learning Practice

  • 5.2

    Instruction-Level Parallelism And Performance

    This section discusses how Instruction-Level Parallelism (ILP) enhances processor performance by allowing multiple instructions to be executed simultaneously, influencing throughput and latency.

    Learning Practice

  • 5.3

    Techniques For Exploiting Ilp

    This section outlines key techniques for exploiting Instruction-Level Parallelism (ILP) in modern processors.

    Learning Practice

  • 5.4

    Data Hazards And Ilp

    Data hazards are critical concerns in exploiting Instruction-Level Parallelism (ILP) as they arise from dependencies between instructions.

    Learning Practice

  • 5.5

    Control Hazards And Ilp

    Control hazards caused by branch instructions can hinder the exploitation of Instruction-Level Parallelism (ILP), but techniques like branch prediction and delayed branching can mitigate their impact.

    Learning

  • 5.6

    Superscalar Processors

    Superscalar processors utilize multiple execution units to execute several instructions per clock cycle, significantly enhancing Instruction-Level Parallelism (ILP).

    Learning Practice

  • 5.7

    Vliw (Very Long Instruction Word)

    VLIW architecture exploits instruction-level parallelism by encoding multiple operations in a single instruction word, enabling concurrent execution.

    Learning Practice

  • 5.8

    Speculative Execution

    Speculative execution is a technique that allows processors to execute instructions ahead of time based on predictions, enhancing instruction-level parallelism (ILP).

    Learning Practice

  • 5.9

    Multithreading And Ilp

    This section discusses how multithreading can enhance instruction-level parallelism (ILP) by allowing multiple threads to utilize a processor's resources simultaneously.

    Learning Practice

  • 5.10

    Limits To Exploiting Ilp

    This section discusses the inherent limitations that impact the effectiveness of exploiting Instruction-Level Parallelism (ILP) in processing.

    Learning Practice

  • 5.11

    Case Study: Ilp In Modern Processors

    This section examines how contemporary processors, such as those from Intel and ARM, implement Instruction-Level Parallelism (ILP) to enhance performance.

    Learning Practice

  • 5.12

    Future Directions In Ilp

    This section discusses emerging trends and future research directions in Instruction-Level Parallelism (ILP), particularly the potential of machine learning and quantum computing.

    Learning Practice

References

eeoe-ca-5.pdf

Class Notes

Memorization

What we have learnt

  • Instruction-Level Paralleli...
  • Performance enhancements th...
  • Addressing data and control...

Final Test

Revision Tests