Because every computation includes a sequential portion, there is a limit to how much you can speed up a task by adding processors. 3. Suppose a task includes one minute of sequential steps and a parallelizable portion that would take an hour if done sequentially. Fill in this table: Number of Processors 1 C. 2 3 4 10 20 30 60 120 240 480 Total Time Required 61 minutes (1 hr + 1 min) 31 minutes (30 min + 1 min) Solution Type sequential solution parallel solutions 4. Consider the law of diminishing returns: a. If you have one processor and you add one more, how much time do you save? b. If you have 240 processors and you add 240 more, how much time do you save? Talk with Your Partner How many processors do you think are worth having for this problem?

Because every computation includes a sequential portion, there is a limit to how much you can speed up a task by adding processors. 3. Suppose a task includes one minute of sequential steps and a parallelizable portion that would take an hour if done sequentially. Fill in this table: Number of Processors 1 C. 2 3 4 10 20 30 60 120 240 480 Total Time Required 61 minutes (1 hr + 1 min) 31 minutes (30 min + 1 min) Solution Type sequential solution parallel solutions 4. Consider the law of diminishing returns: a. If you have one processor and you add one more, how much time do you save? b. If you have 240 processors and you add 240 more, how much time do you save? Talk with Your Partner How many processors do you think are worth having for this problem?

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Description: Because every computation includes a sequential portion, there is a limit to how much you can speed up a task by adding processors.3. Suppose a task includes one minute of sequential steps and a parallelizable portion that would take an hour if done

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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