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Who proposed the first power model?

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Who proposed the first power model?

(a) Jacome

(b) Russell

(c) Tiwari

(d) Russell and Jacome

I got this question in an international level competition.

This interesting question is from Compilers in section Implementing Embedded System: Hardware/Software Codesign of Embedded Systems

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Right choice is (c) Tiwari

Explanation: Tiwari proposed the first power model in the year 1974. The model includes the so-called bases and the inter-instruction instructions. Base costs of the instruction correspond to the energy consumed per instruction execution when an infinite sequence of that instruction is executed. Inter instruction costs model the additional energy consumed by the processor if instructions change.

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