This very simple assignment will show you how to use the virtual machine image we have prepared for you. You will need the following:

• The HW0 handout
• The virtual machine image
  • For Intel processors: x86 virtual machine image
  • For Apple Silicon: ARM virtual machine image
• The virtual machine monitor
  • For Windows and Linux users: VMware Workstation 17 Player
  • For macOS users: VMware Fusion 13 Player
• The debugger training handout for the extra credit.

We also provide some useful tips for using SSH with the VM image via this SSH guide.

Please keep in mind that any code you save in the virtual machine is lost if you delete the VM image itself, unless you check it into your git repository (which we provide; please see the handout for details). The VM will be the official environment for grading all the assignments.

This assignment – a simple parallel sorting program – will give you some hands-on experience with inter-processes communication, multi-threaded programming, concurrency and its impact on application performance, as well as with several basic UNIX primitives. You will need the HW1 handout, as well as some framework code that has already been checked into your Git repository. You should continue using the virtual machine image you installed for Homework 0 for testing your solution and for benchmarking, as well as regularly check your code into your git repository.

For this assignment, you will build a pair of simple email servers (SMTP and POP3) that can be used with a real email client. The assignment involves socket programming, server design, as well as working with RFC-style protocol specifications. You will need the following:

• The HW2 handout
• The basic SMTP specification (RFC 821)
• The basic POP3 specification (RFC 1939)

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