Answered: Here, a solution that uses a single…

Engineering

Computer Science

Here, a solution that uses a single thread is preferable than one that uses several threads.

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

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Fill in the blanks:5. The ( 6 ) is used to implement mutual exclusion where it can be decremented by aprocess and incremented by another, but the value must either be 0 or 1.6. If deadlock prevention approach is used to deal with deadlocks in a system, the ( 7 )condition can be prevented using the direct method.7. Two threads may share the memory space, but they cannot share the same ( 8 )8. Consider round-robin (RR) scheduling algorithm is implemented with 2 seconds timeslice and it is now selecting a new process; if we have 3 blocked processes (A, B, and C),and A has been waiting the longest, then A would need to wait a period of ( 9 ) secondsto be selected.9. In real-time systems, if a task appears at random times, then it is considered ( 10 ).
Suresh and Ramesh started creating an application where it requires to do some mathematical operations.They are going to deploy it in a server. They wanted to do simultaneous execution of multiple parts ofprograms to utilize CPU time. They decided to create 2 separate threads for operations: num**2 andsqrt(num) with sleep of 100ms each.Write a program containing two threads and each thread should have a sleep of 100 ms. One thread is forcalculating the square of the elements in the array and other is for square roots.Trace the output in the threads only. Use Exception handling to handle and trace the interruptions if they occur.Input: An array. Can use static data. Preferably try to use run() and start().Output:"Thread 1"+ square(num)"Thread 2"+ square root(num)likewise to distinguish the thread status
3. Implement mutual exclusion with multithreading in Java Build a Java program which simulates a communication between a server and clients. You must use a thread to represent each party (as server or client). (Hint: study about the Semaphore class to perform mutual exclusion between threads) Create three threads. One thread will act as a server, which always ready to receive a message from a client (ping) and then replies the message to the same client (pong). The other two threads will become the clients, where each client will send a message to the server (ping) and waits for the reply (pong). Define 2 different classes to represent the server and the client. To perform the communication, each thread will refer to a same variable/data structure for sending and receiving the message. Use mutual exclusion approach to ensure each client can send and receive the reply without interruption from any other client(s). For this simulation, your objective is to ensure that each client must…
Please solve question 1 carefully, thanks alot sirrrrr
Java 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.
Computer Science #include<cmath>#include<stdio.h>__global__voidprocess_kernel1(float *input1,float *input2,float *output,int datasize){int idx = threadIdx.x + blockIdx.x * blockDim.x;int idy = threadIdx.y + blockIdx.y * blockDim.y;int idz = threadIdx.z + blockIdx.z * blockDim.z;int index = idz * (gridDim.x * blockDim.x) * (gridDim.y*blockDim.y) + idy * (gridDim.x * blockDim.x) +idx;if(index<datasize)output[index] = sinf(input1[index]) + cosf(input2[index]);}__global__voidprocess_kernel2(float *input,float *output,int datasize){int idx = threadIdx.x + blockIdx.x * blockDim.x;int idy = threadIdx.y + blockIdx.y * blockDim.y;int idz = threadIdx.z + blockIdx.z * blockDim.z;int index = idz * (gridDim.x * blockDim.x) * (gridDim.y*blockDim.y) + idy * (gridDim.x * blockDim.x) +idx;if(index<datasize)output[index] = logf(input[index]);}_global__voidprocess_kernel3(float *input,float *output,int datasize){int idx = threadIdx.x + blockIdx.x *…
Multi-tasking can not be achieved with a single processor machine. True False 2. Async/Await is best for network bound operations while multi-threading and parallel programming is best for CPU-bound operations. True False 3. The following is a characteristic of an async method:The name of an async method, by convention, ends with an "Async" suffix. True False 4. Using asynchronous code for network bound operations can speed up the time needed to contact the server and get the data back. True False 5. Asynchronous programming has been there for a long time but has tremendously been improved by the simplified approach of async programming in C# 5 through the introduction of: The Task class True False
Examine the stack's efficiency when left to its own devices.
Create an x86 assembly program for the following c-code: float referenceVolume ( float* volumes, int SIZE ) { float biggestVolume = volumes[ 0 ]; for ( int i = 1; i < SIZE; i++ ) { if ( volumes[ i ] > biggestVolume ) biggestVolume = volumes[ i ]; } return biggestVolume;}
Q1
Question # 02: User level threads are better than the kernel level threads under what situations
What is the difference between a thread running in the user mode and one running in the kernel mode? Is there a favored species among the alternatives?