SOFT3410 Tutorial 1 Introduction to C Question 1: Setting up By now, you should have your C compiler set up and an access to a version of Linux, if you have not done this or you have ran into some issues, please notify your tutor about your problems. Question 2: Hello From C As a […]
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UNIS Template More Concurrency Exercises and OpenMP Shuaiwen Leon Song Concurrency and Synchronization Exercise 2 Q1(fork) 3 How many lines of output will it produce? Answer: 7 Q2 (sempahores) 4 Consider the following program using semaphores . Which of the following execution order of sem_wait and sem_post are possible (W represent sem_wait, P represent sem_post)?
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Concurrency for Software Development Presented by Dr. Shuaiwen Leon Song USYD Future System Architecture Lab (FSA) https://shuaiwen-leon-song.github.io/ https://shuaiwen-leon-song.github.io/ Tips for students joining online – Remember that you are still in a space with other students. – Mute your microphone when not speaking. – Use earphones or headphones – the mic is better and you’ll disturb
SOFT3410 Tutorial 0 Exercises These are a set of problems to get started with before your first lab. Feel free to discuss these problems on Ed. Question 1: Hello From C Write a Hello, World! program in C that outputs the following. int main() { puts(“Hello, World!”); } Question 2: Reverse Array Write a function
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SOFT3410 Tutorial 2 Standard Library, Files and Function Pointers Question 1: Files We are able to access files on your system using the file api functions and types. The FILE type is a portable abstraction for interacting with files and streams on your system. Once opened, you can use functions like fwrite, fgets, fread, fputs,
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SOFT3410 Tutorial 9 OpenMP Introduction to OpenMP and how it can be used to transform the performance of our applications Question 1: Hello OpenMP Ensure that you have the OpenMP libraries installed on your system. You can check this by construct- ing the following OpenMP HelloWorld program. #include #include int main(void) { #pragma omp parallel
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SOFT3410 Tutorial 4 Measuring, Graphing and Techniques We will be looking into performance analysis of applications. We are mostly concerned with the cpu usage but we will check out memory usage. Question 1: Time Command To get a rough idea of the real time implications of our application, we can utilise a unix command to
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SOFT3410 Tutorial 8 Synchronisation 2 We will be looking into more synchronisation primitives and patterns in this tutorial Question 1: Memory Fencing Using the following source code, observe the effects of compiling your application using -O0 and -O2. Do you observe any errors in the behaviour with the application when executing it? Attempt to send
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SOFT3410 Tutorial 6 Synchronisation 1 Question 1: Shared Memory and Locking Below is an example of two threads accessing shared data. Compile this program and observe the final value. struct thread_data { int value; }; void* work1(void* arg) { struct thread_data* data = (struct thread_data*) arg; for(int i = 0; i < 10000; i++) {
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SOFT3410 Tutorial 5 Threads The goal of this lab is to act as an introduction to threads and encounter some parallel problems Question 1: Welcome to threads Up until now, most of your programs have involved only a single thread. Within this lab we will explore initialising threads and writing separate thread functions. Given the
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