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Lecture: Branch Prediction

Lecture: Branch Prediction

Lecture: Branch Prediction. Topics: power/energy basics and DFS/DVFS, branch prediction, bimodal/global/local/tournament predictors, branch target buffer (Section 3.3, notes on class webpage). Power Consumption Trends.

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284 views • 27 slides
Lecture 7: Static ILP, Branch prediction

Lecture 7: Static ILP, Branch prediction

Lecture 7: Static ILP, Branch prediction. Topics: static ILP wrap-up, bimodal, global, local branch prediction (Sections 2.2-2.6). Predication. A branch within a loop can be problematic to schedule Control dependences are a problem because of the need to re-fetch on a mispredict

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233 views • 22 slides
Lecture: Branch Prediction

Lecture: Branch Prediction

Lecture: Branch Prediction. Topics: branch prediction, bimodal/global/local/tournament predictors, branch target buffer (Section 3.3, notes on class webpage). Pipeline without Branch Predictor. PC. IF (br). Reg Read Compare Br-target. PC + 4.

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217 views • 21 slides
Lecture: Branch Prediction

Lecture: Branch Prediction

Lecture: Branch Prediction. Topics: power/energy basics and DFS/DVFS, branch prediction, bimodal/global/local/tournament predictors, branch target buffer (Section 3.3, notes on class webpage). Power Consumption Trends.

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202 views • 19 slides
Lecture: Branch Prediction

Lecture: Branch Prediction

Lecture: Branch Prediction. Topics: power/energy basics and DFS/DVFS, branch prediction, bimodal/global/local/tournament predictors, branch target buffer (Section 3.3, notes on class webpage). Power Consumption Trends.

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195 views • 19 slides
Lecture: Branch Prediction

Lecture: Branch Prediction

Lecture: Branch Prediction. Topics: power/energy basics and DFS/DVFS, branch prediction, bimodal/global/local/tournament predictors, branch target buffer (Section 3.3, notes on class webpage). Power Consumption Trends.

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201 views • 19 slides
Lecture 7: Branch prediction

Lecture 7: Branch prediction

Lecture 7: Branch prediction. Topics: bimodal, global, local branch prediction (Sections 2.3-2.6). Dynamic Vs. Static ILP. Static ILP: + The compiler finds parallelism ? no scoreboarding ? higher clock speeds and lower power + Compiler knows what is next ? better global schedule

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171 views • 16 slides

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