Using the Beowulf Cluster

Connect to heart.cecs.csulb.edu then ssh cluster. 'cluster' is the bridge 
to the cluster.  Copy files here from heart.  For example if your home 
directory on heart is /cecs_home/d2/u5/f/myname, it would be 
/net/d2/u5/f/myname on the cluster. Transfer a file from heart with the 
command
cp /cecs_home/d2/u5/f/myname/file.erl file.erl
There is no software on 'cluster'. 
Use 
ssh master
to connect to the master machine of the Beowulf cluster. The slave nodes 
are c0, c1, ..., c13.  Master and slaves have Erlang installed.

To start the cluster and nodes follow the section "Starting Erlang nodes 
and setting up the Erlang cluster" from the article Starting a Set of 
Cluster Nodes linked from the course site.  That code, cluster.erl, is 
also linked from the course site.  Following this, once on 'master' use
erl -rsh ssh -sname master
to start Erlang, and 
cluster:slaves(["c0","c1","c2","c3"]).
to start four nodes. The 
nodes().
command shows that the nodes have names cluster@c0, etc.

The multicall command will call a function on a list of nodes. For example
rpc:multicall(nodes(), Modname, Functname,[Arglist]).
To execute a different function on each node use
spawn(Node, Module, Function, Argument List)
where Node is the machine name such as 'cluster@c0' (where the single 
quotes are required).