Nonshared Memory Avoids Problem
No shared memory implies no coherency prob
Put a greater burden on the programmer, sw
A mid-point design is non-coherent shared address space
- If every processor has the same amount of memory, the xth power of 2, then interpret address bits left of x as processor number
- P0 has the low addresses, P1 next lowest ...
Conventional Wisdom: Its harder
to program nonshared memory