tutorial4 Directory Reference

Files
	taylor_dispersion.cpp
	taylor_dispersion.h

Detailed Description

Taylor–Aris Dispersion Test Case

Taylor–Aris dispersion describes the spreading of a solute within a fluid due to the coupled effects of advection and diffusion.

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Prerequisites

Before compiling, ensure you load all required dependencies from the parent directory:

cd .. && make loaddeps

Required Dependencies & Tools

• nvcc (NVIDIA CUDA Compiler — required for NVIDIA GPU target)
• hipcc (AMD ROCm / HIP Compiler — required for AMD GPU target)
• octave (Required for pre-processing input data generation)

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Compilation Guide

This test case supports three different execution backends. Choose the build target appropriate for your hardware environment:

Hardware Target	Make Command	Notes & Configuration
NVIDIA GPU	make taylordispersion	Update -arch=sm_80 in the Makefile to match your GPU's compute capability before running.
CPU	make thrust_cpu	Uses the Thrust host CPU backend.
AMD GPU	make hip	Uses the AMD HIP compiler environment.

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Execution Instructions

1. Generate Input Data

Run the Octave script to setup initial solute distributions and simulation parameters:

octave write_td.m

2. Run the Simulation

Execute the compiled binary:

./taylordispersion