Computer Science 432/563
Operating Systems

Spring 2016, The College of Saint Rose

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Agenda

• Announcements
• Programming Project 1: Process Tree should be in very soon, hopefully by tonight or tomorrow
• Programming Project 2: CPU Scheduler Simulation is your main focus right now: form and register your groups by today
• Lab 2: Programming Unix Processes and Threads in C recap
• Lecture 0x06 assignment recap
• What about scheduling in systems with multiple CPUs?
  • scaling
  • locking issues
  • processor affinity
  • load balancing
• Cooperating Processes
  • Bounded buffer problem
  • Race conditions
• Critical Sections
  • Requirements: mutual exclusion, progress, bounded waiting

Lecture 0x07 Assignment

Due at the start of class, Wednesday, February 17.

Please submit answers to these questions either as a hard copy (typeset or handwritten are OK) or by email to terescoj AT strose.edu by the start of class. Please use a clear subject line when submitting by email (e.g., CS 432 Lecture 0x07 Assignment, Mary Smith). We will discuss these questions at the start of class, so no late submissions are accepted.

We will be working on material from SG&G Chapter 5 for the next few lectures.

• SG&G Exercise 5.9, p. 251 (4 points)

Examples

• prodcons-shmem
• prodcons-pthreads