A Partitioning cost function

• Consider software model in terms of set of program threads and cost function f.

• where, ?i (per second) is thread latency: execution delay
• ?i (per second) thread reaction rate: invocation rate of the program thread

• processor utilization P is calculated by P = ? ?i ?i

• Bus utilization B (per second) = ?rj “m variables to be transferred, rj = inverse of minimum time interval between consecutive samples for variable r”.

ASIC

r1

r2

r3

Bus

?1 ?2 ?3

?1

?2

?3

i=1

n

m

j=1

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