Write a program LPT.java that takes an integer M as a command-line argument, reads job names and processing times from standard input and prints a schedule assigning the jobs to M processors that approximately minimizes the time when the last job completes using the longest processing time first rule
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Write a
prints a schedule assigning the jobs to M processors that approximately minimizes the
time when the last job completes using the longest processing time first rule
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- Race condition is the scenario that the same problem can finish at different time when running at processors with different speeds or rates. O True O False When the total utilization of a given periodic task set is lower than 0.5, all tasks can meet their deadlines. O True O False There are in general two methods for interprocess communication: shared variable and The cyclic scheduling scheme is much simpler, more flexible, and adaptive than the round-robin scheduling scheme. O True O False Real time systems can be largely classified as soft real time systems and firm real time systems. O True he O False2. Implement the frame replacement algorithm for virtual memory In Java For this task, you need to perform the simulation of page replacement algorithms. Create a Java program which allows the user to specify: • the total of frames currently exist in memory (F), the total of page requests (N) to be processed, • the list or sequence of N page requests involved, For example, if N is 10, user must input a list of 10 values (ranging between 0 to TP-1) as the request sequence. Optionally you may also get additional input, the total of pages (TP) This input is optional for your program/work. It only be used to verify that each of the page number given in the request list is valid or invalid. Valid page number should be within the range 0, .. , TP-1. Page number outside the range is invalid. Then use the input data to calculate the number of page faults produced by each of the following page replacement algorithms: • First-in-first-out (FIFO) - the candidate that is the first one that entered…2. Write programs in eitherCor Java or python (choose your preference ) to simulate the following scheduling Algorithms with their respective Gantt Charts displayed during run time: (i) FCFS- First Come First Serve Scheduling (ii) SJF- Shortest Job First Scheduling (Non - Preemptive and Pre-emptive both) (iii) LJB-Longest Job First Scheduling (Non - Preemptive and Pre-emptive both) (iv) Priority Scheduling (Non - Preemptive and Pre-emptive both)
- Write a C or C++ program that performs runs of the following process scheduling algorithms: *Shortest remaining time (SRT) [preemptive] *Round robin (RR) [preemptive] Run each scheduling algorithm for 100 quanta (time slices), labeled 0 through 99. Before each run of an algorithm, create 20 simulated processes. Each simulated process is simply a small data structure that stores information about the process that it represents. For each simulated process, randomly generate: • An arrival time: a float value from quanta 0 through 99. • An expected total run time: a float value from 0.1 through 10 quanta. • A priority: integer 1, 2, 3, or 4 (1 is highest) • Include any other attributes that you may need Tip: While debugging your program, you may want the same pseudo-random numbers each time. For this to happen, you should set the seed of the random number generator to a value, such as 0. Read about the rand() and srand() functions for C and C++: Assume only one CPU and one ready queue.…Write a program that simulates a toy paging system that uses the WSClock algorithm. The system is a toy in that we will assume there are no write references (not very realistic), and process termination and creation are ignored (eternal life). The inputs will be: The reclamation age threshhold The clock interrupt interval expressed as number of memory references A file containing the sequence of page references Describe the basic data structures and algorithms in your implementation. Show that your simulation behaves as expected for a simple (but nontrivial) input example. Plot the number of page faults and working set size per 1000 memory references. Explain what is needed to extend the program to handle a page reference stream that also includes writes.Write a program that creates 2 child processes to sum up an integer array of 10,000 elements. The parent process will divide the array into 2 equal parts and send child processes their part. The child processes will compute sum of their part and send the sum to the parent process. The parent process will receive partial sums from their child processes and display the final sum. • Declare and initialize the array • Each child process should run on a separate CPU • Binding process to a CPU called affinity and the attached manual will help you in setting affinity.
- Implement SRTF (SJF with preemption) scheduling algorithm in C programming. NOTE: Please do not print the average waiting time and the average turnaround time. You are required to compute these for each process and print the values for each process separately. Add comments in the code so that the code is understandable. Take input from the user: the number of processes, their CPU burst times and arrival times for n number of processes. Compute and print the completion Time(CT), Turnaround Time(TAT), and Waiting Time(WT) for each process using C ProgrammingIn this assignment, you will implement a simple OS scheduler using C/C++. The scheduler's task is to receive a set of processes and their details, and then decide the order of executing these processes based on the chosen algorithm. Finally, the scheduler will output the order of process execution, in addition to some stats about each of the processes. The scheduling algorithm chosen for this assignment will be SJF (Shortest Job First). The input will start with an integer N, representing the number of processes, followed by N lines (one for each process). For each line i, the line will start with a strings, representing the process name, followed by 2 numbers representing the arrival time and processing time for the ith process, respectively. Your program should print a line indicating the order of executing the processes. Then, for each process, the program should print a line showing the process's name, response time, turnaround time, and delay. See the sample output below for…Implement the following scheduling algorithms in C First-come, first-served (FCFS), which schedules tasks in the order in which they request the CPU. Shortest-job-first (SJF), which schedules tasks in order of the length of the tasks' next CPU burst. Priority scheduling, which schedules tasks based on priority. Round-robin (RR) scheduling, where each task is run for a time quantum (or for the remainder of its CPU burst). This is pre-emptive by default Priorities range from 1 to 10, where a higher numeric value indicates a higher relative priority. For round-robin scheduling, the length of a time quantum is 10 milliseconds. It never changes from this value.
- Case Study Assume a computer system has a main memory of 256 Bytes. The following is a memory byte-access trace history of a program run on this system. For example, as it is shown, the program first accesses memory address 0000 0000, and then it accesses memory address 0000 0001 and so on. Note the memory addresses are represented in binary: 00000000, 00000001, 00000010, 00000011, 00001000, 00010000, 00010001, 00000100, 00000101, 00000110, 00000111, 00001001, 00001010, 00001011, 00001100, 00001000, 00001001, 00001010, 00011100, 00011101. Q3. Assume the system has a 16-Byte direct mapped unified L1 cache with a block size of 2 Bytes. The following table shows how the cache looks like after the first access to the memory is finished. Please show; in the provided table, how it looks like after the 20th access is finished. You could ignore the "Data" Column. (Add or remove Rows/Columns in the provided table for your answer, as you see fit). Cache contents after the 1st access: Cache Index…In c++ write an assembler in which it will read a program written in HACK assembly language from an external file and ultimatley translate each line of code into the binary equivalent that can be run on the computer I built so based off the following hdl files Computer below others are in the images. CHIP Computer { IN reset; PARTS: //Read-only memory (ROM) for instruction fetch ROM32K(address=PC,out=instruction); //Central Processing Unit (CPU) for instruction executionCPU(instruction=instruction,reset=reset,inM=outMemo,outM=CPUoutM,writeM=wM,addressM=adM,pc=PC); //Memory for data storage and control logic Memory(in=CPUoutM,load=wM,address=adM,out=outMemo); }Write a python code in multiprocessing (from mpi4py import MPI) Consider a system of 2 processes. The master process generates an array of random numbers of the size n. It shares the array with the slave. The slave is asked to do the sum of numbers. The result returned by the slave is printed by the master process. The master process is simultaneously counting the numbers less than 50 in the array and printing the same.In all the above cases, print the details of who is printing and what is being printed. Use mpi4py Python Package in the coding.