$21\mathrm{.}3$ Why is there a trend toward giving an increasing fraction of chip area to cache memory?

$21\mathrm{.}4$ List some examples of applications that benefit directly from the ability to scale throughput

with the number of cores.

$21\mathrm{.}5$ At a top level, what are the main design variables in a multicore organization?

$21\mathrm{.}6$ List some advantages of a shared L$2$ cache among cores compared to separate dedicated

L$2$ caches for each core.