P1
$
Ctlr
a:4
01000
P2
$
Ctlr
P3
$
Ctlr
Detailed Example
•Consider the example similar to last week
•The assumptions are …
•a is globally allocated
•a has it’s home at P1
•P0 previously read a
P1 reads a into its cache
P3 reads a into its cache
P3 changes a to 5
{P2 reads a into its cache
 P2 writes a in its cache}
P0
a:V:4
Ctlr
Interconnection Network