VLSI Question: Download Questions PDF
What are the main issues associated with multiprocessor caches and how might you solve them?
Answer:
issue : Cache coherency or Data coherency. The problem is
all the processors cache should have exactly the same
shared data (cohenrent data). and there are races possible
with multiprocessors.
possible solution: use one central cache controller which
will get all the read/write requests from all the
processors and peripherals so that it can make sure there
are no races and cache coherency is maintained.
all the processors cache should have exactly the same
shared data (cohenrent data). and there are races possible
with multiprocessors.
possible solution: use one central cache controller which
will get all the read/write requests from all the
processors and peripherals so that it can make sure there
are no races and cache coherency is maintained.
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