Big Cluster Node Instructions

If you are the DHCP master, see BigClusterDHCPInstructions.

Boot

• Follow directions for trivial-net-setup. Hit Enter to select the highlighted answer and the arrow keys to change the selection.

On the Mac, it will boot you straight through the boot sequence. On x86 machines:

• Boot up to the BCCD splash screen.
• Hit Enter

Everybody (x86 and PPC both) then:

• Enter the password we give you on the day of the event.
• Follow directions for trivial-net-setup.
  • Say YES/OK (Enter to accept) to everything.

• 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.
  • 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 any of 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

Everybody continue on to switching 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
• lamboot -v ~/machines

Windows users only have the option of

• startx

but Mac users, your trackpad might not work; you might get stuck and hosed. Don't startx.

Compile the target code

Everybody needs to compile the target code.

• The DHCP server needs to push out the demo code.
• The code will show up in a directory named something like /tmp/6g2w98s.
• cp -r /name.arch ~bccd/cs521 (where name is name of the code we're going to run, dirname is the tmp dir name and arch is either x86 or ppc, e.g. cp -r /tmp/6g2w98s/findPi.x86 ~bccd/cs521)
• cd ~bccd/cs521
• make

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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.

Mac users, if you have trouble rebooting into OS X immediately after booting into BCCD, try holding Control-Command-Power after an non-starting boot.