15-347 Spring '98
Class Alpha Systems


We will be using Alpha processors extensively in this course. Every student should have an account that will work on any of the machines. Finger yourself at black.ece.cmu.edu to find out if you have an account and to determine your login ID.

These machines can be reached remotely via any internet connection. They live off in some machine room and don't even have consoles. They can act as X window clients, however, so you can treat them the same way as the Andrew Unix servers, (except that they're a lot faster. :)

These machines work from an AFS account set up for you in domain ece.cmu.edu. You can navigate between this account and your andrew account using standard AFS operations. You can use klog to authenticate yourself from one domain to another.

Below is a list of Digital Alpha DPW433 Workstations available for class use. Please note that black.ece.cmu.edu is the lead machine in the group and the password file is copied from that machine to all others each night so if you make a change to your default shell, etc you need to make that change on black.

Password changes should be made using the kpasswd command and they will take effect immediatly on all machines in the group.

You can click on any of the following machine IDs to establish a telnet session. If you want to run any X window applications, you should also execute the command xhost XXX.ece.cmu.edu on you local machine, where XXX is the name of the machine to which you connected.

Eventually we will provide a system to help you connect to the least heavily loaded machine. For now, you can use the following experimental script (generously provided by Prof. Phil Koopman in ECE) to observe the number of users logged into each of the machines: http://ballista.ece.cmu.edu:8080/koopman/color_machines.cgi. Note that this is not a "load" number, but just the number of logged in users. ECE facilities is working on a fancier solution, but this should be helpful for now.


The machines we're using for class have the following characteristics: I've done some benchmarking of the matrix multiplication example presented in class on Feb. 5. The results are described on the Alpha measurements web page.


We'll be working with these machines at a fairly low level of detail. Useful documents include:
Randy.Bryant@cs.cmu.edu, last updated 26 February 1998.