Page 119 - Computer_Science_F5

Computer Science Questions:

1. Imagine you are the party planner in charge. How would you assign different
tasks as separate threads to get things done faster?
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2. What potential challenges could arise when using multithreading in party
planning? How could you mitigate these challenges?

Pipelining, ILP, superscalars, loop unrolling, and register renaming are used to
improve processor performance. However, the problem is that within a single
instruction stream we do not find enough independent instructions to execute
simultaneously due to many factors such as data dependencies. To overcome this,
we can leverage multiple instruction streams by introducing the concept of threads
and processes.

Process: An instance of a program in execution, as shown in Figure 2.12. It includes
the program code, data structures, and its current execution state (think of it as a
recipe being followed while cooking).
Thread: A unit of execution within a process. A process can have multiple threads,
each handling a specific task concurrently (imagine multiple cooks working on
different parts of the same recipe).

Program: A program is a collection of commands written in a programming
language, which a computer executes. These commands outline the actions and
tasks the computer needs to carry out.

Figure 2.12: Processes

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for Advanced Secondary Schools

Computer Science Form 5.indd 110 23/07/2024 12:33