29
What Happens When A Program Runs
•One processor starts,
gets the logical arrangement from command
line, sends it to others and they start
•This
differs slightly from machine to machine
•Each processor
computes which region it owns
•Each processor sets up
its scalars, routing tables and data arrays ...
Fluff -- the temporary storage used to hold values transmitted for @-communication -- it
is inline to make indexing
transparent
Flood arrays -- minimum allocation
