In performance analysis, EDP (Energy Delay Product) and PDP (Power Delay Product) parameter present. What is difference between Energy and Power? How to take the Energy report in Xilinx or Synopsys tool?
The Power-Delay-Product (PDP) is a measure of energy and is defined by the product of the average power and the gate delay. Energy-delay-product (EDP) is energy delay2 should be used instead.
EDP=PDP*tp=Pavg * tp^2=(Cl*VDD^2*tp)/2
Dear All,
I have an architecture with max operating frequency of 100 MHz, and I have calculated the power consumption of 50, 60, 70 and 80 m W with respect to (20, 30, 40 and 50 MHz) operating frequencies, my question is, how to calculate the Power delay product. More specifically is tp=1/(2*operating frequency) or tp=/(2 fmax) .
Please, see attached xlsx file ( all the above figures are shown in it)
Many thanks in advance
Energy is J(oule), power is J/s.
I prefer to reason about the energy per function, given a time constraint, and then look for required resources (silicon area).
As its name implies, the power-delay product (PDP) is the product of P and D, and represents the average amount of energy E required to perform a computation. However, a circuit with low PDP (i.e., a very energy-efficient one) may be very slow in performing its computation. A metric that is much more preferable is the energy-delay product (EDP), which is the product of E and D. see https://www.tau.ac.il/~ilia1/publications/rpbd_book.pdf
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