hw2extra - EE263 Prof. S. Boyd EE263 homework 2 additional...

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Unformatted text preview: EE263 Prof. S. Boyd EE263 homework 2 additional exercises 1. Temperatures in a multi-core processor. We are concerned with the temperature of a processor at two critical locations. These temperatures, denoted T = ( T 1 , T 2 ) (in degrees C), are affine functions of the power dissipated by three processor cores, denoted P = ( P 1 , P 2 , P 3 ) (in W). We make 4 measurements. In the first, all cores are idling, and dissipate 10W. In the next three measurements, one of the processors is set to full power, 100W, and the other two are idling. In each experiment we measure and note the temperatures at the two critical locations. P 1 P 2 P 3 T 1 T 2 10W 10W 10W 27 29 100W 10W 10W 45 37 10W 100W 10W 41 49 10W 10W 100W 35 55 Suppose we operate all cores at the same power, p . How large can we make p , without T 1 or T 2 exceeding 70 ? You must fully explain your reasoning and method, in addition to providing the numerical solution....
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This note was uploaded on 01/25/2012 for the course EE 263 taught by Professor Boyd,s during the Spring '08 term at Stanford.

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