Given an array A[0..n-1], write the following CUDA program using SHARED MEMORY: Each thread compares and exchanges two items in each iterations, but use shared memory and multiple
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Given an array A[0..n-1], write the following CUDA program using SHARED MEMORY:
Each thread compares and exchanges two items in each iterations, but use shared memory and multiple
blocks.
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- Write a problem in java program search for a number N inside a randomly generated array of size 200 using 5 threads. Problem description: Create an integer array, arr of size 200 and generate 200 random numbers for that array. Write a program where you need to search a number in that given array, arr. Distribute the given array into five threads and perform the search in parallel. Suppose one thread searches for the input number from the index 0 to 40. Another search can be performed from the index 41-80 in another thread.Take an input N. Now search for N in the array using 5 threads.Computer Science (JAVA computer science) DO NOT COPY AND PASTE THE ANSWER FROM THE FIRST OR SECOND TIME I POSTED THIS. THIS IS DONE IN JAVA, NOT C. this is the third time I have to post this. Using java, make an array of 100,000 random numbers, and a program that computes the sum of the numbers, and times how long it takes. The program needs to compare the amount of time it takes to compute the sum vs the # of threads used. The # of threads varies from 1 to 50. Every time it should be comparing the same array of numbers vs the number of threads, so I can see how the # of threads affects the time elapsed while the array is the constant variable. Please make a global variable that all of the threads can use, and use a single JAVA class. potential output: # of threads: X sum: _____ time: ____ # of threads: Y sum: _____ time: ____ etc... thanks. (you dont have to include all the numbers for the array, I can generate my own set from a txt file or whatever)Implement a Multithreaded Sudoku Solution Validator using POSIX thread library in C Specifications This assignment consists of designing a multithreaded application that determines whether the solution to a Sudoku puzzle is valid. A Sudoku puzzle uses a 9×9 grid in which each column and row, as well as each of the nine 3×3 subgrids, must contain all of the digits 1 to 9. Following figure presents an example of a valid Sudoku puzzle solution. There are several different ways of multithreading this application. In this assignment, you need to implement the strategy to create multiple worker threads that check the following criteria: Nine threads to check that each of the 9 columns contains the digits 1 through 9 Nine threads to check that each of the 9 rows contains the digits 1 through 9 Nine threads to check that each of the 3×3 subgrids contains the digits 1 through 9 This would result in a total of 27 separate worker threads for validating a Sudoku puzzle solution.The parent…
- Given an array A[0..n-1], write the following versions of CUDA programs with and without using shared memory. Each thread splits and merges two subarrays of size n/p in each iterations. Use shared memory and multiple blocks. Experiment to get best performances.2. 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…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.
- For this assignment you need to write a parallel program in C++ using OpenMP for vector addition. Assume A, B, C are three vectors of equal length. The program will add the corresponding elements of vectors A and B and will store the sum in the corresponding elements in vector C (in other words C[i] = A[i] + B[i]). Every thread should execute approximately equal number of loop iterations. The only OpenMP directive you are allowed to use is: #pragma omp parallel num_threads(no of threads) The program should take n and the number of threads to use as command line arguments: ./parallel_vector_addition Where n is the length of the vectors and threads is the number of threads to be created. Pseudocode for Assignment mystart = myid*n/p; // starting index for the individual thread myend = mystart+n/p; // ending index for the individual thread for (i = mystart; i < myend; i++) // each thread computes local sum do vector addition // and later all local sums combined. As an input vector A,…Computer Science Write a C++ code with threads: Compute π by “randomly” choosing points. π is four times the fraction that falls in the circle (imagine you’re throwing darts to a target). Ac = π r 2 As = 2r*2r = 4r2 P = Ac/As = π/4 • You should use a thread-safe real uniform random generator • Make a table for different values of n (# darts) and # threadsJava program Assume there are two public phone booths in your area. Each person is allotted a fixed time of 1000 milliseconds for a call beyond which the turn goes to the next waiting person Assume n customers are making a call in a day Each customer waits for their turn if both the booths are under use. Write a program using multi threading to find the number of customers served by each booth and the order of customers call.
- In the cellular automata, some cells are filled while others are empty. Assume having a Boolean array of values corresponding to filled and empty cells, develop a Java code segment to plot the updated cellular automata assuming cell width and height is c, and the number of cells per row is n and the number of cells per column is n. solve it using Java2d and implement thread or timer in solutionThis is some code in C for quicksort. The quicksort works correctly, but I am trying to implement multithreading. I am trying to run the recursive calls in parallel with a limit on how much threads can be running at one time (set by the global variable 'maximumThreads'). My logic is incorrect with managing how many threads can be ran at the same time. The part that I need you to look at is after the for loop in quick sort, where I have my logic for the mutex and the conditional variable. Right now when I run my code, the program runs without stopping. I would like help with correctly implementing this. #include <stdlib.h>#include <string.h>#include <pthread.h>#include <stdio.h>#define SORT_THRESHOLD 40typedef struct _sortParams {char** array;int left;int right;int* currentThreads;pthread_mutex_t* mutex;pthread_cond_t* cond_var} SortParams;static int maximumThreads; /* maximum # of threads to be used *//* This is an implementation of insert sort, which although…This is some code in C for quicksort. The quicksort works correctly, but I am trying to implement multithreading. I am trying to run the recursive calls in parallel with a limit on how much threads can be running at one time (set by the global variable 'maximumThreads'). My logic is incorrect with managing how many threads can be ran at the same time. The part that I need you to look at is after the for loop in quick sort, where I have my logic for the mutex and the conditional variable. Right now when I run my code, the program runs indefinitely. I would like help with correctly implementing this part. #include <stdlib.h>#include <string.h>#include <pthread.h>#include <stdio.h>#define SORT_THRESHOLD 40typedef struct _sortParams {char** array;int left;int right;int* currentThreads;pthread_mutex_t* mutex;pthread_cond_t* cond_var} SortParams;static int maximumThreads; /* maximum # of threads to be used *//* This is an implementation of insert sort, which…