Advanced ILP and Parallel Processing: Important Questions

Computer Organization and Architecture

Chapter 5: Advanced ILP and Parallel Processing

Important Questions

1. What is parallel processing?

2. State the basic ways to achieve parallelism.

3. What is multicore?

4. State the limitations to increase clock frequency or processor speed.

5. Explain the necessity of multicore.

6. Define instruction level parallelism.

7. State primary methods for increasing the potential amount of ILP.

8. What is Instruction‒Level Parallelism (ILP)? Explain why exploiting ILP is important in improving processor performance.

9. Explain various techniques for exploiting ILP.

10. What is static multiple issue and dynamic multiple issue?

11.What is VLIW?

12. What is speculation?

13. Explain the recovery mechanisms used when speculation is incorrect.

14. Write a note on register renaming.

15.What is branch prediction?

16. What are the major program‒inherent limitations that restrict Instruction‒Level Parallelism (ILP)?

17. Explain how real‒world hardware limitations prevent processors from achieving the ILP of an ideal processor.

18. Why has modern processor design shifted from increasing ILP to multicore, SMT and vector processing?

19. What is multithreading?

20. Define process, resource ownership, process switch, thread and thread switch related to multithreading?

21. Give comparison between process switch and thread switch.

22. What do you mean by implicit and explicit multithreading.

23. Discuss various approaches to explicit multithreading.

24. What is multicore?

25. Write a note on chip multiprocessing.

26. Explain the term: Hardware multithreading.

27. What is hardware multithreading? Compare and contrast Fine grained Multi-Threading and Coarse grained Multi Threading.

28. Explain in detail about hardware multithreading.

29. Explain the four principle approaches to multithreading with necessary diagrams.

30. Explain any three types of hardware multithreading.