Multicore computer

1. How does increasing parallelism in hardware affect performance?

• 1. A. It decreases performance

• 1. B. It simplifies design

• 1. C. It improves performance but increases complexity

• 1. D. It has no effect on performance

1. Why is power consumption a major issue in modern hardware design?

• • A. It leads to lower temperatures

• • B. It requires better cooling solutions

• • C. It reduces energy efficiency

• • D. Both B and C

3. What is a key factor for software to benefit from multicore processors?

• • A. High sequential code

• • B. Effective exploitation of parallel resources

• • C. Minimal use of threads

• • D. Single-threaded design

3. What is the impact of a small amount of serial code on multicore performance according to Amdahl's Law?

• • A. It has no impact

• • B. It significantly enhances performance

• • C. It noticeably reduces performance gains

• • D. It doubles performance

3. Which company reprogrammed their game engine to exploit multicore processors?

• • A. Microsoft

• • B. Valve

• • C. Sony

• • D. Nvidia

3. What threading strategy did Valve find most promising for scalability?

• • A. Coarse-grained threading

• • B. Fine-grained threading

• • C. Hybrid threading

• • D. Single-threading

3. What threading model did Valve use to improve data access efficiency?

• • A. Multiple-writers-single-reader

• • B. Single-writer-multiple-readers

• • C. Multiple-writers-multiple-readers

• • D. Single-writer-single-reader

3. What is a benefit of fine-grained threading?

• • A. Simpler thread management

• • B. Lower overhead

• • C. More flexibility in parallelizing operations

• • D. Reduced power consumption

10. What is one level of cache in multicore organization?

• • A. L0 Cache

• • B. L1 Cache

• • C. L4 Cache

• • D. L5 Cache

10. What is Simultaneous Multithreading (SMT)?

• • A. A technique to improve single-thread performance

• • B. A method to increase power consumption

• • C. A way to execute multiple threads simultaneously within a single core

• • D. A way to reduce the number of cores