Preliminaries
•The
computers implementing shared memory without a central bus are called
“distributed shared memory” (DSM) machines
•The
subclass is the CC-NUMA machines, for cache coherent non-uniform memory
access
•On an
access-fault by the processor
•Find out information about the state of the cache block in
other
machines
•Determine
the exact location of copies, if necessary
•Communicate with other machines to implement the shared memory
protocol