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Extending Peterson's Solution for Concurrent Access Control in Critical Sections

This discussion explores the potential of extending Peterson's solution for controlling access to critical sections in computing environments beyond two concurrent activities. Key elements of an effective solution will be identified, addressing requirements such as symmetrical access, independence from relative speeds, prevention of stoppage-induced blocking, and avoiding starvation. Additionally, the session will cover practical aspects of building and managing virtual machines using Linux environments, including options for installing and configuring SUSE Linux 9.3 through VMware and other platforms.

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Extending Peterson's Solution for Concurrent Access Control in Critical Sections

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  1. Class DiscussionPeterson’s Solution for n > 2 Discussion

  2. Question:– • Can Peterson’s solution for controlling access to critical sections be extended to more than two concurrent activities? • What are the essential elements of a solution? Discussion

  3. Requirements – Controlling Access to a Critical Section • Symmetrical among n computations • No assumption about relative speeds • A stoppage outside critical section does not lead to potential blocking of others • No starvation — i.e. no combination of timings that could cause a computation to wait forever to enter its critical section Discussion

  4. Virtual Machines & Linux Kernel • Requirement for CS-502 programming projects:– • to be able to build, modify, and install a Linux kernel with root password • SUSE Linux 9.3 • How many people have this environment set up already? Discussion

  5. Options / Alternatives • VMware Server, accessed via VMware client • Requires ability to install client • VMware Workstation on your personal computer at home or office • VMware Player running previously created virtual machine • Macintosh on Intel platform • Parallels: install SUSE Linux 9.3 directly • Boot Camp: install VMware xxx on Windows partition • An other computer on which you can install SUSE Linux 9.3 directly Discussion

  6. Next topic – Term Project Assignment Discussion

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