1. Consider a system of 9 processes, P = {p1, ..., p9}. Associated with the system are 6 memory cells, M = {M1, ..., M6}. The domain and range for each process is given in the following table: Process pi Domain D(pi) pl M1, M2 M1 M3, M4 M3, M4 p2 p3 p4 p5 рб p7 p8 p9 M3 M4 M5 M3, M4 M5, M6 Range R(pi) M3 M5 M1 M5 M4 M4 M5 M2 M6 In addition, you are given the following precedence relation: →= {(P1, P2), (P1, P6), (P2, P3), (P2, P4), (P2, P5), (P3, P6), (P3, P8),(P4,P6), (P4,P7), (P5,P7), (P5,P8), (P6,P8), (P6,P9), (P7,P9), (P8, P9)} a. Construct the Precedence Graph (not containing any redundant edges). Use PowerPoint, diagrams.net, or any other app to draw the graph. b. Determine if the system above is always determinate. If it is not, add to → necessary elements to make it determinate.

1. Consider a system of 9 processes, P = {p1, ..., p9}. Associated with the system are 6 memory cells, M = {M1, ..., M6}. The domain and range for each process is given in the following table: Process pi Domain D(pi) pl M1, M2 M1 M3, M4 M3, M4 p2 p3 p4 p5 рб p7 p8 p9 M3 M4 M5 M3, M4 M5, M6 Range R(pi) M3 M5 M1 M5 M4 M4 M5 M2 M6 In addition, you are given the following precedence relation: →= {(P1, P2), (P1, P6), (P2, P3), (P2, P4), (P2, P5), (P3, P6), (P3, P8),(P4,P6), (P4,P7), (P5,P7), (P5,P8), (P6,P8), (P6,P9), (P7,P9), (P8, P9)} a. Construct the Precedence Graph (not containing any redundant edges). Use PowerPoint, diagrams.net, or any other app to draw the graph. b. Determine if the system above is always determinate. If it is not, add to → necessary elements to make it determinate.

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

See similar textbooks

Related questions

Q: please help with parts a and b with steps/explanation!

A: Process :Process P1 must complete before P2, P3, and P5P2 must complete before P3 and P4P3 must…

Q: (1) Process 0 requests resource 2. After the operation: Process D is ready Resource 2 is Select 3…

A: A resource allocated to another process is only released after the process completed its operation.…

Q: A system has 5 processes and 5 types of resources. The current state of the system is as follows:…

A: The necessary steps for finding the smallest value of λ that keeps the system in a safe state. Step…

Q: Let I represent an execution of init(s), W of wait(s), and S of signal(s). Then, for example, IWWS…

A: Let I represent an execution of init(s), W of wait(s), and S of signal(s). Then, for example, IWWS…

Q: The input and output relationship of a process plant is given by: 3s + 1 Y(s) s39s²+26s+ 24 U(s)…

Q: please help for part a and b

A: a) Construct the Precedence GraphGiven the precedence relations:…

Q: For the scheduling method "Round Robin" (RR), specify the average execution time (average turnaround…

A: All the process arrive at same time in the sequence P1->P2->P3->P4. The time quantum time…

Q: For an old computing system with 2K bytes physical memory, and the virtual address has 13 bits.…

Q: Consider a system with six processes P1, P2, P3, P4, P5, and P6, and five resources R1, R2, R3, R4,…

A: Resource Allocation Graph (RAG) is a graphical representation used to visualize the current state of…

Q: Given a system of 4 processes with a set of constraints described by the following precedence…

A: Introduction Precedence Relation: Precedence relations are constraints that specify the order in…

Q: We have 4 periodical processes II₁, II, II and II, that process a video. We know their periods P and…

Q: Consider the following set of processes, each of which needs a certain amount of a series of shared…

A: Consider the following set of processes, each of which needs a certain amount of a series of shared…

Q: Producer-consumer problem is a common paradigm for cooperating processes. A producer process…

A: Actually, given information: Producer-consumer problem is a common paradigm for cooperating…

Q: ccording to Amdahl's Law, what is the maximum possible % reduction in execution time when: process…

A: In computer architecture, Amdahl’s law (or Amdahl’s argument) is a formula which gives the…

Q: An operating system has 3 user processes running in a set, each requiring 2 units of resource R. The…

A: An operating system plays a crucial role in managing resources and processes within a computer…

Q: Let S and be two semaphores initialized to 1 Po wait (S); wait (Q) ; signal (S); signal (Q); P₁ wait…

A: According to the question, we have given two processes P0 and P1 which are deadlock by semaphores S…

Q: Suppose that a system has only one CPU with the following list of processes, which are represented…

A: 1. preventative Scheduling:Preemptive programing is employed once a method switches from running…

Q: A real-time system executing four different periodic tasks Ti(pt) is given with p and t representing…

A: To determine the schedulability under RM and EDF, the overall CPU utilization of the system and the…

Q: Consider the following set of processes, with the length of the CPU burst and I/O burst given in…

Q: We have 4 periodical processes II₁, II, II and II, that process a video. We know their periods P;…

Q: The performance of a hierarchical memory is measured by its effective access time (EAT) or the…

A: Overlapped access is also known as parallel access and non-overlapped access is known as sequential…

Q: Consider a system where processes can be dynamically created or terminated. A process can generate a…

A: "Happens Before" is also called Casual Ordering. "Happens Before" notion is not straightforward in…

Q: lustrate the behaviour of the Best Fit memory allocation algorithm for the following set of…

A: Here is the explanation of the above problem. See below steps.

Q: Question 1: The following program consists of 3 concurrent processes and 3 binary semaphores. The…

A: Below is the complete solution with explanation in detail for the given question about Semaphores.

Question

1. Consider a system of 9 processes, P = {p1, ., p9).
Associated with the system are 6 memory cells, M = {M1,., M6).
The domain and range for each process is given in the following table:
Process pi
Domain D(pi)
Range R(pi)
p1
M1, M2
M3
p2
M1
M5
p3
p4
М3, М4
М3, М4
M1
M5
p5
M3
M4
рб
M4
M4
p7
M5
M5
p8
МЗ, М4
M2
p9
M5, M6
M6
In addition, you are given the following precedence relation:
> = {(P1,P2), (P1,P6), (P2,P3), (P2,P4), (P2,P5),(P3,P6),(P3,P8),(P4,P6),
(P4,P7), (P5,P7), (P5,P8), (P6,P8), (P6,P9), (P7,P9), (P8,P9)}
a. Construct the Precedence Graph (not containing any redundant edges). Use PowerPoint,
diagrams.net, or any other app to draw the graph.
b. Determine if the system above is always determinate. If it is not, add to necessary
elements to make it determinate.
2. In the first problem, there were 9 processes, many of which were listed as pairs under the
precedence relation. Suppose we are dealing with a system of only 5 processes named P1 through
P5. You are given a set of constraints that are expressed by the following precedence relation:
> = {(P1,P3), (P1, P5), (P2,P4), (P3, P4), (P4, P5)}
Provide pseudocode to show how you can use semaphores to enforce these constraints (i.e., the
precedence relation →).

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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.

Similar questions

Two algorithms A and B report time complexities expressed by the functions n2and 2n , respectively. They are to be executed on a machine M that consumes 10–6 s to execute an instruction. What is the time taken by the algorithms to complete their execution on machine A for an input size of 50? If another machine N that is 10 times faster than machine M is provided for the execution, what is the largest input size that can be handled by the two algorithms on machine N? What are yourobservations?
The following diagram shows the process_state and other_resources fields of 4 processes in the PCB array. The RCB array shows the state and the waiting_list of 4 resources. The ready list RL contains processes 3 then 2. Consider (1), (2) as independent operations. РСВ 1 PCB 0 РСВ 2 PCB 3 process_state blocked blocked ready running ... other_resources ... RCB 0 RCB 1 RCB 2 RCB 3 ... ... state allocated free allocated free waiting list 1 Now consider that Process 3 requests resource 0. Now, answer the following questions: 5.1.1 What is the status of process 3? (a) blocked (b) ready (c) running Answer: 5.1.2 Resource O's waiting list contains: (a) process 0 (b) process 1 (c) process 2 (d) process 3 (e) empty Answer: 5.1.3 Resource 0 is: (a) allocated (b) free Answer: 5.1.4 RL contains the processes: (a) process 0 (b) process 1 (c) process 2 (d) process 3 Answer:
For instance, a systolic array is a kind of array that may be thought of as a MISD device. Systolic arrays are networks of data processing nodes organized in a wavelike fashion, thus the name. None of these parts need the employment of a program counter since execution is started by the arrival of new data. In a timed systolic array, all of the nodes calculate and communicate synchronously, or "in lock-step," with one another.
Consider the following processes and their associated threads running on a multiprocessor system: Process Thread Arrival Time CPU Burst I/O Burst Total CPU Time X X1 0 4 2 11 X2 3 2 4 5 X3 3 2 4 5 Y Y1 5 6 2 14 Y2 5 3 5 7 Z Z1 7 1 1 6 Z2 7 3 2 10 Create a scheduling simulation for these threads on a system with two (2) processors using the First Come First Served (FCFS) algorithm. A thread may migrate from one processor to another if it returns from blocked waiting time and 1) the processor it was running on previously is occupied with other work; and 2) and the other processor is available to execute the thread. If both processors are available when a thread becomes unblocked, it will remain on the processor it was most recently running on. In this simulation, you will be managing a single ready queue that schedules all processes. When two processes arrive in the ready queue at…
In a computer system five processes are attempting to proceed with three resource types. The total units of system resources are: (8,9,7). The maximum demands for every process are: P1(3,1,1), P2(3,3,2), P3(5,3,2), P4(5,1,2), P5(8,4,3). The current allocation is: P1 (0,1,1), P2 (2,1,1), P3 (3,1,2), P4 (1,1,1), and P5 (2,3,2). Is this state a safe state? Explain your answer. Please explain in great detail so i can understand .
Suppose that an operating system supports two kinds of sequential processes: high-priority interactive processes, and low-priority non-interactive processes. The behavior of the high-priority processes is to alternate between periods of computation of duration Tc and periods of blocking (waiting for input) of duration Tb. The behavior of the low-priority processes is to compute constantly, with no blocking. The operating system’s scheduling policy is round-robin with a quantum q, where Tc < q. Scheduling decisions are made only when a quantum expires, or when the running process blocks. The scheduler selects a low-priority process to run only if no high-priority processes are ready. Suppose there is one high-priority process and one low-priority process in the system, and that both processes will run for a long time. For what fraction of the time does the low-priority process run?
Suppose a system has 5 processes, P = {P1, P2, P3, P4, P5}, and 4 resources, R = {R1, R2, R3, R4}, where there are 2 instances of R1, 1 instance of R2, 3 instances of R3, and 3 instances of R4. The current state of the system is defined by the following requests and assignments: P1 is requesting an instance of R3 and has been assigned an instance of R2; P2 is requesting an instance of R1 and has been assigned an instance of R3; P3 is requesting an instance of R4 and has been assigned an instance of R1 and an instance of R3; P4 is requesting an instance of R3; P5 is requesting an instance of R2 and has been assigned an instance of R4. Is there deadlock in this system? (Explicitly state yes, there’s deadlock or no, there isn’t.) If applicable, draw a wait-for graph or resource-allocation graph, and use the appropriate graph to justify your answer. If you conclude there is no deadlock, your justification should contain a sequence of execution for the processes which shows that…
A single-CPU system has four processes, P1, P2, P3 and P4 in the ready queue. The execution times and I/O needs for these processes are given below. All times are in ms. (hint: when a process starts an IO operation, it is removed from the ready queue and put back at the end of the queue only when it completes its IO). Process P1: Arrives at 0ms, needs 23ms of CPU time. Performs I/O for 5ms after 10ms of its execution time, then another 5ms after 20ms of its execution time. Process P2: Arrives at 3ms, needs 12ms of CPU time. Performs I/O for 10ms after 5ms of its execution time. Process P3: Arrives at 1ms, needs 15ms of CPU time. Performs I/O for 1ms after 7ms of its execution time. Process P4: Arrives at 2ms, needs 8ms of CPU time. Performs I/O for 5ms after 4ms of its execution time. We assume that the CPU is idle if no one of these four processes is using it. Using Round Robin scheduling algorithm with a Time Quantum of 4ms and ignoring the context switch time, determine: a) The…
PLEASE ONLY NEED ANSWER FOR QUESTION 2 (THE PSEUDOCODE) THANKS
In the context of operating systems
Assume we have a cluster consisting of 4 identical computer nodes. Now, let’s say the program has been parallelized or partitioned for parallel execution on such a cluster. 25% of the program code must be executed sequentially, while the remaining 75% can be run parallel on the available nodes. Using Amdahl’s law, calculate the speed up if the cluster is upgraded to have 16 nodes compared to 4 nodes.
Q3: Suppose there is a processing unit composed by CPU and I/O component. For a specific task, CPU takes 5 second to finish the execution and I/O takes 2 second to process. The communication time between CPU and I/O can be elimiate under this circumstance. Execution Time 7 second 5second 2 second CPU time I/O time If CPU time decreases by 25% per year for 3 years and I/O time decreases by 20% per year 1) How many times faster is this program after 3 years? 2) What percentage of new time is I/O? and what percentage of new time is CPU?