The three functions as given below perform the same operation with varying degrees of spatial locality. Rank-order the functions with respect to the spatial locality enjoyed by each. Explain how you arrived at your ranking.

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
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The three functions as given below perform the same operation with varying degrees of spatial locality. Rank-order the functions with respect to the spatial locality enjoyed by each. Explain how you arrived at your ranking. 

void clear3(point *p, int n)
{
}
int i, j;
for (j = 0; j < 3; j++) {
for (i = 0; i<n; i++
p[i].vel [j] = 0;
for (i = 0; i<n; i++)
p[i].acc[j] = 0;
}
(b) The clear 1 function
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void clearl (point *p, int n)
{
int i, j;
for (i = 0; i<n; i++) {
for (j = 0; j < 3; j++
p[i].vel [j] = 0;
for (j = 0; j < 3; j++
p[i].acc [j]
0;
}
}
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void clear2(point *p, int n)
{
int i, j;
}
for (i = 0; i<n; i++) {
for (j = 0; j < 3; j++)
p[i].vel[j] = 0;
p[i].acc[j] = 0;
}
Transcribed Image Text:void clear3(point *p, int n) { } int i, j; for (j = 0; j < 3; j++) { for (i = 0; i<n; i++ p[i].vel [j] = 0; for (i = 0; i<n; i++) p[i].acc[j] = 0; } (b) The clear 1 function 1 2 3 4 5 6 7 8 9 10 11 void clearl (point *p, int n) { int i, j; for (i = 0; i<n; i++) { for (j = 0; j < 3; j++ p[i].vel [j] = 0; for (j = 0; j < 3; j++ p[i].acc [j] 0; } } 1 2 3 4 5 6 7 10 11 void clear2(point *p, int n) { int i, j; } for (i = 0; i<n; i++) { for (j = 0; j < 3; j++) p[i].vel[j] = 0; p[i].acc[j] = 0; }
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