Address space partitioned address equivalence
distributed ownership
contact owner of page to get current copy
application, global virtual memory abstraction, dsm software implementation, local physical memeories
LRC with multi-writer coherence protocol
PI lock(L);
x, y, z pages modified in cs => Xd, Yd, Zd } diffs
unlock(L); fetch at point of access
P3 lock(L); x <- => X’d unlock(L);
Implementation
write(x), twin, original writable
release run-length encoded
