CS 3733 Operating Systems, Fall 2004 Assignment 5 Comments

General Comments:

• This assignment was graded on a basis of 30 points.
• Only 9 students successfully demonstrated the program.
• The answers to the questions were not graded.
  Please look at the answers below and make sure you understand them.

1. With 4 copies running on single CPU machines, at most 4 can be executing simultaneously.
   Since children are forked for each connection, there is no limit to the number that can be running concurrently.
2. The connection is not shared between runs so there is nothing to empty.
3. The permissions on the pipes prevent other users from writing to them.
4. The signal would be generate on the machines running pipecomplier and you cannot send signals between machines.
   Most likely, the grep would fail if there were no copies if mymake running on the remote machines.