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You will be doing your 15-213 lab assignments on a cluster of Nocona
Xeon servers, donated by Intel, called the "fish machines". Intel
engineers traditionally use the names of North American rivers as
internal names for their processor projects. So it seems fitting that
we, as denizens of the Intel cluster, name our machines after fish of
North America. The fish machines run Linux, are rack-mounted in the
Wean Hall 3rd floor machine room, and are administered by the CS
facilities group. They reboot every day at 7am.
Here is the current fish machine status.
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| bluefish.ics.cs | bonito.ics.cs | cobia.ics.cs (Autolab server) |
Q: Are the accounts ready yet?
A: Yes (as of Mon, Aug 29, 2005).
Here are the students who have accounts.
If you're not on the list, please request an account from
Prof. O'Hallaron (droh@cs.cmu.edu).
Q: What do I need to do before logging in for the very
first time?
A: From your Andrew home directory on an Andrew
Unix machine (e.g., linux.andrew.cmu.edu or
unix.andrew.cmu.edu),
run the following one-time checkin script:
unix> /afs/cs/academic/class/15213-f05/bin/checkin
Your top level Andrew home directory needs to be at least world listable:
"system:anyuser l".
Q: What does the checkin script do?
A: The checkin script activates your account so that
you can login to the fish machines using your Andrew password. It
creates a hidden directory called ~/.15213 with login
credentials for the fish machines. If you don't have one already, it
also creates a protected directory ~/213hw where you can
safely do your assignments without other students being able to see
them. You only need to run the checkin script once, before
your very first login to the fish machines. However, you can safely
run the checkin script as often as you like.
Q: How do I login to one of these machines once I have run the
checkin script?
A:
If your Andrew login is bovik and you want to login
to the fish machine called tuna.ics.cs.cmu.edu,
then type the following while logged in to an Andrew Unix machine:
unix> ssh -x -l bovik@ANDREW.CMU.EDU tuna.ics.cs.cmu.edu
[type your Andrew password to the prompt]
Note: The uppercase 'ANDREW.CMU.EDU' is significant.
Q: I did everything you said but I still can't login. Now what?
A: Here are the most common reasons students can't login:
unix> cd
unix> fs sa -dir ~ -acl system:anyuser l
unix> fs sa -dir ~/.15213 -acl system:anyuser rl
If you still can't login, please send mail to your instructor.
Each node on the cluster runs a 64-bit version of Fedora Core 3 (Linux kernel 2.6.11) and consists of the following hardware: