'Waw hazards' presentation slideshows

1.07k views • 73 slides

Chapter 3-part2: Limits of Instruction-Level Parallelism

Chapter 3-part2: Limits of Instruction-Level Parallelism. David Patterson Electrical Engineering and Computer Sciences University of California, Berkeley http://www.eecs.berkeley.edu/~pattrsn http://www-inst.eecs.berkeley.edu/~cs252. Original slides created by:. Outline. Limits to ILP

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Computer Architecture Principles Dr. Mike Frank

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Out-of-Order Execution

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High-level view

Instruction fetch/dispatch pipeline. Instruction issue/execute pipeline. High-level view. Out-of-order pipeline Two decoupled pipelines: fetch/dispatch and issue/execute Pipelines decoupled by buffers Many names: reservation stations, issue queues/buffers, scheduling queues

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Lecture 4: Advanced Pipelines

Lecture 4: Advanced Pipelines. Control hazards, multi-cycle in-order pipelines, static ILP (Appendix A.4-A.10, Sections 2.1-2.2). Data Dependence Example. lw R1, 8(R2) sw R1, 8(R3). Summary. For the 5-stage pipeline, bypassing can eliminate delays

269 views • 15 slides