Practice Manual Vectorization (10.6.2) - Vector, SIMD, GPUs

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is manual vectorization?
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Think about how SIMD works.
Question 2.
Why is memory alignment important for SIMD?
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Consider where data is stored.
3Question 3.
What does Manual Vectorization aim to achieve in computing?
- Faster processing by handling multiple elements
- Simply executing tasks sequentially
- Increased memory usage
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Think about performance improvement.
4Question 4.
True or False: Automatic vectorization always produces better performance than manual vectorization.
- True
- False
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They have different levels of control.
Question 5.
You are optimizing a large matrix multiplication. Describe how you would use manual vectorization to enhance performance and discuss the potential obstacles you might encounter.
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Consider what operations can be processed together.
Question 6.
Given a function to apply a filter across an array of pixel values, outline how to implement manual vectorization and discuss the possible performance benefits.
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Explore how groups of pixels can be handled together.

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