Advanced Computer Architecture Chapter 7.62
S3MP
- Writes
If the line is exclusive
(i.e. dirty bit is set) no message is required
Else send a write-request
to the home
Home sends an invalidation
message down the chain
Each copy is invalidated
(other than that of the requester)
Final node in chain
acknowledges the requester and the home
Chain is locked for the
duration of the invalidation