Fluid Box Simulation

This project implements a 2D fluid simulation using two parallel approaches:

• MPI Version: Distributed simulation using MPI and OpenGL for visualization. See the source in openmpi/fluid_box.cpp.
• OpenMP Version: Multi-threaded simulation using OpenMP and OpenGL for visualization. See the source in openmp/fluid_box.cpp.

Prerequisites

Before running make all, ensure you have the following packages installed:

• MPI: Open MPI (e.g. openmpi-bin and libopenmpi-dev on Ubuntu)
• OpenGL: OpenGL development libraries (e.g. libgl1-mesa-dev)
• GLUT: GLUT development libraries (e.g. freeglut3-dev)
• C++ Compiler: A C++ compiler with OpenMP support (e.g. g++)

Building

Compile project:

make all

MPI Version

Run the simulation:

mpirun -np 4 ./out/fluid_sim_mpi

(The argument 4 specifies the number of threads to use.)

OpenMP Version

Run the simulation:

./out/fluid_sim_omp 4

(The argument 4 specifies the number of threads to use.)

Usage

• Visualization: Both simulation versions use OpenGL/GLUT to display the fluid density field.
• Interaction: Left-mouse clicks or movements add impulses to the simulation. Use mouse interactions to update the fluid dynamics.

Credits

• But How DO Fluid Simulations Work? - Gonkee
• Jos Stam - Real Time Fluid Dynamics for Games (2003)