Booting DHCP for the Big Cluster

DHCP server, follow this sequence:

• Boot up to the BCCD splash screen
• Hit F3, then type framebuffer_mode_number startdhcp (framebuffer_mode_number just refers to what screen resolution to use; 4 is 1024x768.)
• Enter the password we decide on the day of the event.
• Follow directions for trivial-net-setup. Hit Enter to select the highlighted answer and the arrow keys to change the selection.
  • Say NO when it asks if it should autoconfigure with DHCP and YES/OK for everything else.
  • When it asks for IP addresses, configure as in the examples. You can just type in the addresses they use in the dialogs, which are
    • IP address 192.168.1.1
    • netmastk 255.255.255.0
    • router address 192.168.1.254
    • DNS server 192.168.1.1

• When you get to the option of logging in:
  • Login as root, using the password listed at the login prompt
  • Change the password. If you are helping the owner, let the owner set the password.
  • Copy the example code from wherever to ~bccd/src
  • chmod -R bccd ~/src
  • df to get a list of the mounted partitions
  • umount partition for all of your local drive partitions, (e.g. umount /mnt/rw/discs/disc0/part3/home/fred) Macs don't seem to mount all your local drives.
  • exit
• Sign in as bccd, with the password given earlier.
• Answer yes when it asks if you want to run a heartbeat.

Switch to LAM

• edit ~/.bashrc
  • edit the PATH line so that the line reads export PATH=/lam-mpi/bin:$PATH
  • write file and quit
• source ~/.bashrc (or log out and log back in)
• For each node, rebuild the library cache:
  • su - root (using the root password given)
  • ldconfig -v | less
  • exit (back to bccd)
• bccd-allowall (Answer yes.)
• bccd-snarfhosts
• recon -v ~/machines (It might take a few tries for this to work, not sure why.)
• lamboot -v ~/machines

You have the option of

• startx

Compile the target code

• bccd-syncdir ~bccd/src ~/machines
• cp -r dirname/cs521.arch ~bccd/cs521 (where dirname is the tmp dir name and arch is either x86 or ppc, e.g. cp -r /tmp/6g2w98s/cs521.x86 ~bccd/cs521)
• cd ~bccd/cs521
• make
• run the program

As more machines come online, you might need to refresh your system state:

• bccd-allowall
• bccd-snarfhosts
• recon -v ~/machines

There is some order dependency that Ducky hasn't quite figured out yet; keep doing those and eventually it will all get settled out.