Question: [ 2 5 points ] Given a directory - based, 5 1 2 - processor system with a cache block size of 6 4 bytes.

[25 points] Given a directory-based, 512-processor system with a cache block size of 64
bytes. How much is the directory memory overhead for a full bit vector scheme? If the
system has 1TB memory in total, how much is the actual data memory storage space? If
we use pointers to reduce the directory storage space and up to 20 sharers are supported,
how much is the directory overhead now?
[25 points] Given a directory-based, 512-processor system with a cache block

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