This repository contains solutions to some of the programming exercises found in the textbook Parallel Programming in C with MPI and OpenMP by Michael Quinn.

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The following programs are included in the repository.

1. Motivations and History

2. Parallel Architectures

3. Parallel Algorithm Design

4. Message-Passing Progamming

   • exer04_06.c: hello, world program

   • exer04_07.c: compute the sum 1 + 2 + ... + p

   • exer04_08.c: find the number of times that two consecutive odd numbers are both prime in the set of integers from 2 to n

   • exer04_09.c: find the largest gap between prime numbers in the set of integers from 2 to n

   • exer04_10.c: number of 6-digit ID combinations subject to some restrictions

   • exer04_11.c: calculate an integral using the rectangle method

   • exer04_12.c: calculate an integral using Simpson's rule

5. The Sieve of Eratosthenes

   • sieve_quinn: Quinn's version of the Sieve of Eratosthenes

   • exer05_06.c: Modify Sieve algorithm so as to not set aside memory for even numbers

   • exer05_07.c: Modify Sieve algorithm so that each process finds prime numbers between 2 and floor( sqrt(n) ), rather than waiting for a broadcast from the 0-th process

   • exer05_08.c: Modify Sieve algorithm to improve the cache hit rate by decomposing the section of numbers each process is responsible for into further sub-blocks

   • exer05_09.c: Functional decomposition of Sieve algorithm

   • exer05_11.c: Compute 1/1 + 1/2 + ... + 1/n for some choice of n

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