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COSC 444 COMPLETE EXAM WITH ANSWERS

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COSC 444 COMPLETE EXAM WITH ANSWERS Concurrent Program - CORRECT ANSWER-A program that contains portions of code that can occur at the same time Parallel Execution - CORRECT ANSWER-When concurrent parts of a program are executed at the same time Parallel vs Distributed Computing - CORRECT ...

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  • August 13, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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COSC 444 COMPLETE EXAM WITH
ANSWERS




Concurrent Program - CORRECT ANSWER-A program that
contains portions of code that can occur at the same time

Parallel Execution - CORRECT ANSWER-When concurrent
parts of a program are executed at the same time

Parallel vs Distributed Computing - CORRECT ANSWER-
Parallel: multiple cores, single machine
Distributed: Multiple cores, networked machines

Threads - CORRECT ANSWER-Exist within a process,
basically lightweight processes

Process - CORRECT ANSWER-Self-contained environment
with its own memory space

Embodies 2 characteristics: Resource ownership and
scheduling

Speedup - CORRECT ANSWER-The process for increasing
the performance between two systems/processes working on
the same problem

, Aims to lower latency

Latency - CORRECT ANSWER-A time interval between
stimulation and response

High latency = high delay

Amdahl's Law - CORRECT ANSWER-Theoretical speedup
latency of the execution of task at a fixed workload

f = fraction of the code that can run in parallel

N = number of processors

S = fraction of Serial code

= 1/((1-f)+(f/N)) OR 1/S

Gustafson's law - CORRECT ANSWER-Theoretical speed up
in latency of the execution of a task at a fixed time of execution

S = fraction of the code that is serial
N = number of processors

=N + (1-N)S

Coarse threading - CORRECT ANSWER-Using individual
modules assigned to a thread or processor

Fine Grained threading - CORRECT ANSWER-Similar tasks
spread over multiple processors

Multi programming - CORRECT ANSWER-Management of
multiple processes within a uni-processor system

Multiprocessing - CORRECT ANSWER-Management of
multiple processes within a multiprocessor system

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