hw1 - CSEE W4824 Prof. Luca Carloni Homework 1 Handout 1...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: CSEE W4824 Prof. Luca Carloni Homework 1 Handout 1 September 17, 2011 This homework is due at the beginning of class on Wednesday, September 28. A correct answer without adequate explanation or derivation will have points deducted. To get full credit, write legibly/type, and show all work (label relevant items, show derivations, include explanations). 1. (0 points) . Read the two assigned papers (Handouts #4 and #5 ). 2. (3 points) . A designer wants to improve the overall performance of a given machine with respect to a target benchmark suite and is considering an enhancement X that applies to 60% of the original dynamically-executed instructions, and speeds each of them up by a factor of 3 . The designers manager has some concerns about the complexity and the cost-effectiveness of X and suggests that the designer should consider an alternative enhancement Y . Enhancement Y , if applied only to some (as yet unknown) fraction of the original dynamically-executed instructions, would make them only twice as fast. Determine what percentage of all dynamically-executed instructions should be optimized using enhancement Y in order to achieve the same overall speedup as obtained using enhancement X . Show all steps and derivations to receive full credit. Either supply the actual percentage, or else leave your answer as a simple fraction....
View Full Document

This note was uploaded on 11/12/2011 for the course CSEE 4824 taught by Professor Carloni during the Fall '11 term at Columbia.

Page1 / 3

hw1 - CSEE W4824 Prof. Luca Carloni Homework 1 Handout 1...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online