Practice War (write After Read) Hazard - Anti-dependency (8.1.1.2.2) - Introduction to Parallel Processing
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WAR (Write After Read) Hazard - Anti-Dependency

Practice - WAR (Write After Read) Hazard - Anti-Dependency

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a WAR hazard?

💡 Hint: Think about what happens in pipelined execution.

Question 2 Easy

Name one technique to mitigate WAR hazards.

💡 Hint: Consider how registers are managed in processors.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a key implication of a WAR hazard?

Incorrect execution result
Improved performance
Enhanced pipeline efficiency

💡 Hint: Consider the order of read and write actions in your response.

Question 2

Register renaming is primarily a technique for what?

True
False

💡 Hint: Think about how registers help processors communicate and solve write issues.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Create a more complex assembly instruction set that can illustrate multiple hazards including WAR. Document how you would resolve these.

💡 Hint: Focus on how many instructions depend on the outcome of others; aim for succinctness.

Challenge 2 Hard

Evaluate the effectiveness of register renaming in a hypothetical multi-threaded environment and illustrate with an example.

💡 Hint: Think of renaming as how people use different 'work IDs' in databases to avoid confusion in their roles.

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Reference links

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