3. This question is about multitasking and parallel programming In a pre-emptive multitasking operating system, the operating system gives the appearance of running multiple processes at the same time by switching which process is currently running on the CPU several times a second. Internally, the OS models the lifetime of a processes as moving between a series of states: Running, Blocked, and Runnable. a. An extract from a C program is shown below: #include #include #include #define PRIME_LIMIT (1000000) int main(int arge, char **argv) int a,b; int prime[PRIME_LIMIT]; char out[PRIME_LIMIT]; char *p, *q, *r; int off; int i,j,n,ip; if(arge < 3) fprintf(stderr, "Not enough argumenta\n"); exit(1); a - atoi(argv[1]); b- atoi(argv[2]); if(b > 1000000 || a > b) fprintf(stderr, "Invalid arguments\n"); exit(2); printf("Searching for prime numbers between td and td\n", a, b); Suppose this code was excuted on a pre-emptive multitasking operating system. i. Which parts of the above program would cause the operating system to move the procors from the BU ioctod stato?
3. This question is about multitasking and parallel programming In a pre-emptive multitasking operating system, the operating system gives the appearance of running multiple processes at the same time by switching which process is currently running on the CPU several times a second. Internally, the OS models the lifetime of a processes as moving between a series of states: Running, Blocked, and Runnable. a. An extract from a C program is shown below: #include #include #include #define PRIME_LIMIT (1000000) int main(int arge, char **argv) int a,b; int prime[PRIME_LIMIT]; char out[PRIME_LIMIT]; char *p, *q, *r; int off; int i,j,n,ip; if(arge < 3) fprintf(stderr, "Not enough argumenta\n"); exit(1); a - atoi(argv[1]); b- atoi(argv[2]); if(b > 1000000 || a > b) fprintf(stderr, "Invalid arguments\n"); exit(2); printf("Searching for prime numbers between td and td\n", a, b); Suppose this code was excuted on a pre-emptive multitasking operating system. i. Which parts of the above program would cause the operating system to move the procors from the BU ioctod stato?
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
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![3. This question is about multitasking and parallel programming
In a pre-emptive multitasking operating system, the operating system gives the
appearance of running multiple processes at the same time by switching which process
is currently running on the CPU several times a second. Internally, the OS models the
lifetime of a processes as moving between a series of states: Running, Blocked, and
Runnable.
a. An extract from a C program is shown below:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define PRIME_LIMIT (1000000)
int main(int argc, char **argv)
int a,b;
int prime[ PRIME_LIMIT];
char out[PRIME_LIMIT];
char "p, *q, *r;
int off;
int i,j,n,ip;
if (arge < 3)
fprintf(stderr, "Not enough argumenta\n");
exit(1);
a - atoi(argv[1]);
b - atoi(argv[2]);
if(b > 1000000 || a > b)
fprintf(stderr, "Invalid arguments\n");
exit(2);
printf("Searching for prime numbers between td and rd\n", a, b);
Suppose this code was excuted on a pre-emptive multitasking operating system.
1. Which parts of the above program would cause the operating system to move the
process from the Running state to the Blocked state?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7664b6c7-b372-431d-82e6-04f456134eee%2Fc82380f4-1582-45eb-b9c8-eeb4112a24cb%2Fpdziwbj_processed.png&w=3840&q=75)
Transcribed Image Text:3. This question is about multitasking and parallel programming
In a pre-emptive multitasking operating system, the operating system gives the
appearance of running multiple processes at the same time by switching which process
is currently running on the CPU several times a second. Internally, the OS models the
lifetime of a processes as moving between a series of states: Running, Blocked, and
Runnable.
a. An extract from a C program is shown below:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define PRIME_LIMIT (1000000)
int main(int argc, char **argv)
int a,b;
int prime[ PRIME_LIMIT];
char out[PRIME_LIMIT];
char "p, *q, *r;
int off;
int i,j,n,ip;
if (arge < 3)
fprintf(stderr, "Not enough argumenta\n");
exit(1);
a - atoi(argv[1]);
b - atoi(argv[2]);
if(b > 1000000 || a > b)
fprintf(stderr, "Invalid arguments\n");
exit(2);
printf("Searching for prime numbers between td and rd\n", a, b);
Suppose this code was excuted on a pre-emptive multitasking operating system.
1. Which parts of the above program would cause the operating system to move the
process from the Running state to the Blocked state?
Transcribed Image Text:ii. Which parts of the above program would cause the operating system to move the
process into the Runnable state?
iii. When else might the above program be moved into the Runnable state?
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