Answered: Suppose that each of the 4 processors…

Name: Suppose that each of the 4 processors in a shared memory multi-process
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Description: Suppose that each of the 4 processors in a shared memory multi-processor system is rated at 400 MIPS. A program contains a purely sequential part that accounts for 22% of the program’s execution time on a single processor. The remaining code can be p

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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Suppose that each of the 4 processors in a shared memory multi-processor system is rated at 400 MIPS. A program contains a purely sequential part that accounts for 22% of the program’s execution time on a single processor. The remaining code can be partitioned into three independent parts (A, B, and C). Running on a single processor, part A accounts for 30% of the program’s execution time, part B accounts for 18%, and part C accounts for 30%. What is the apparent MIPS rating for the program if it is run on the 4-processor system and the sequential part must be completed before any of the remaining independent parts (A, B or C) can run in parallel?

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