BACI Programming: Concurrency and Producer-Consumer Model at University of Central Florida, Study Guides, Projects, Research of Operating Systems

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Project 5Project 5

Concurrency Programming

Overview^

Learning concurrency programming

No relationship with previous projects

Based on BACI, a simplified C++ language

Simple Sample

void print_number(int i){ cout<<i<<endl; } main(){ cobegin { University of Central Florida { print_number(1); print_number(2); print_number(3); } }

Semaphore^

Semaphore

semaphore s = 17;

p(s); - v(s);

Binary semaphore

Binary semaphore

binarysem b = 0;

p(b); - v(b);

Producer and Consumer^

A bounded buffer

Size of 20

Producer put multiple items

produce one by one, once an item has been produced, it is available to consumer immediatelyavailable to consumer immediately

Consumer take 1 item a time

If buffer is full, producer wait

If buffer is empty, consumer wait

First In, First Out

You will need to test 1 producer, multiple consumers

Producer and Consumer

void producer(int NullLoop, int NumberOfItems){ ……for (i=0;i<NullLoop;i++) {} …… // produce items one by one// for every item produced, print it out// cout << "producer enter a new item " << total << ", value: " << value << endl; …. }
void consumer(int NullLoop, int ConsumerID){ ……for (i=0;i<NullLoop;i++) {}cout << "consumer " << ConsumerID << " remove an item " << value << endl;…… }

Submission^

Submit on olympus

If you work on your own computer, upload it to olympus

You will need new Makefile - cp /export/home/e/emontagn/project/Makefile3 Makefile - make submitcc

Due date:

Nov 26 (Monday) midnight