(Amdahl’s law question) Suppose you have a machine which executes a programconsisting of 50% floating point multiply, 20% floating point divide, and the remaining 30% are fromother instructions.(a) Management wants the machine to run 4 times faster. You can make the divide run at most 3 timesfaster and the multiply run at most 8 times faster. Can you meet management’s goal by making onlyone improvement, and which one?
(Amdahl’s law question) Suppose you have a machine which executes a programconsisting of 50% floating point multiply, 20% floating point divide, and the remaining 30% are fromother instructions.(a) Management wants the machine to run 4 times faster. You can make the divide run at most 3 timesfaster and the multiply run at most 8 times faster. Can you meet management’s goal by making onlyone improvement, and which one?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
(Amdahl’s law question) Suppose you have a machine which executes a program
consisting of 50% floating point multiply, 20% floating point divide, and the remaining 30% are from
other instructions.
(a) Management wants the machine to run 4 times faster. You can make the divide run at most 3 times
faster and the multiply run at most 8 times faster. Can you meet management’s goal by making only
one improvement, and which one?
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