8
Non-shared Memory
Building shared
memory in hardware is difficult, and its programming advantages are
limited
Leave
it out; focus on speed and scaling
•Three
machines
–nCUBE,
an early hypercube architecture
–CM-5,
connection machine’s “ultimately scalable”
–T3D/T3E
Cray’s first foray into shared address sp
•Each
machine tries to do some aspect of communication well