Separate a multi-threaded program into multiple 4. 8 points Louis

Question 15 / 18:

4. [8 points]: Louis writes a multithreaded program, which produces an incorrect answer some of the time, but always completes. He suspects a race condition.

Which of the following are strategies that can reduce or eliminate race conditions in Louis’s program?

Separate a multi-threaded program into multiple single-threaded programs (each with its own address space) and share data between them via an inter-program communication primitive like pipes.

A True

B False

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Explanation:

TRUE. Although this approach may slow down the system, it will ensure there are no races. (The threads would no longer share memory, and a race condition can only happen when threads actually share memory.)

Exam Home Page

https://www.jobilize.com/computer-system-engineering-exam-by-prof-robert-morris-mit

Computer System Engineering 6.033 Spring 2009

Author:

Prof.Robert MorrisProfessor

MIT Massachusetts Institute of Technology

USA

Access: Public Instant Grading

Attribution: Morris, Robert, and Samuel Madden. 6.033 Computer System Engineering, Spring 2009. (MIT OpenCourseWare: Massachusetts Institute of Technology), http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-033-computer-system-engineering-spring-2009 (Accessed 2 May, 2014). License: Creative Commons BY-NC-SA

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