Problem: A 1024 x 1024 array of 32-bit numbers is to be normalized as follows. For each column, the largest element is found and all elements of the column are divided by the value of this element. Assume that each page in the virtual memory consists of 4K bytes, and that 1M bytes of the main memory are allocated for storing array data during this computation. Assume that it takes 10 ms to load a page from the disk into the main memory when a page fault occurs. (a) Assume that the array is processed one column at a time. How many page faults would occur and how long does it take to complete the normalization process if the elements of the array are stored in column order in the virtual memory? (b) Repeat part (a) assuming the elements are stored in row order? (c) Propose an alternative way for processing the array to reduce the number of page faults when the array is stored in the memory in row order. Estimate the number of page faults and the time needed for your solution.

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
icon
Related questions
Question

Assembly language. Pls answer only if you had knowledge. Thanks.

Problem: A 1024 x 1024 array of 32-bit numbers is to be normalized as follows. For each
column, the largest element is found and all elements of the column are divided by the value
of this element. Assume that each page in the virtual memory consists of 4K bytes, and that
1M bytes of the main memory are allocated for storing array data during this computation.
Assume that it takes 10 ms to load a page from the disk into the main memory when a page
fault occurs.
(a) Assume that the array is processed one column at a time. How many page faults
would occur and how long does it take to complete the normalization process if the
elements of the array are stored in column order in the virtual memory?
(b) Repeat part (a) assuming the elements are stored in row order?
(c) Propose an alternative way for processing the array to reduce the number of page
faults when the array is stored in the memory in row order. Estimate the number of
page faults and the time needed for your solution.
Transcribed Image Text:Problem: A 1024 x 1024 array of 32-bit numbers is to be normalized as follows. For each column, the largest element is found and all elements of the column are divided by the value of this element. Assume that each page in the virtual memory consists of 4K bytes, and that 1M bytes of the main memory are allocated for storing array data during this computation. Assume that it takes 10 ms to load a page from the disk into the main memory when a page fault occurs. (a) Assume that the array is processed one column at a time. How many page faults would occur and how long does it take to complete the normalization process if the elements of the array are stored in column order in the virtual memory? (b) Repeat part (a) assuming the elements are stored in row order? (c) Propose an alternative way for processing the array to reduce the number of page faults when the array is stored in the memory in row order. Estimate the number of page faults and the time needed for your solution.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Introduction to computer system
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education