Parallel Computing

Adventures in parallel computing using pthreads (shared memory) and MPI (distributed memory) during University. These projects were very interesting and insightful. The programs both perform a large computation (relaxing a 2D matrix).

Shared memory

How to run

Using gcc:

1. Build using gcc -o shared-memory.out main.c matrix.c -lpthread -Wall -Wextra -Wconversion.
2. Run using ./shared-memory.out -a ARRAYSIZE -p PRECISION -w NUMBEROFTHREADS.

Distributed memory

How to run

Using mpicc:

1. Build using mpicc -Wall -Wextra -o distributed-memory.out main.c matrix.c.
2. Run using mpirun ./distributed-memory.out -a ARRAYSIZE -p PRECISION.