ASTR code

Version 2.0

ASTR code is a high-order finite-difference flow solver for compressible turbulence research. This project explores the usage of CUDA-Fortran to parallelise the ASTR code. The tgv solver for a 3D case has been parallelised using CUDA.

Download, Installation and Compilation

Required dependencies: Fortran 90, NVIDIA HPC SDK, CMAKE

The installation guide for NVIDIA HPC SDK can be found at Installation Guide

Download the gpu accelerated astr code:

Clone the git repository:

$ git clone https://github.com/terencel411/astr.git

Compilation:

The Makefile gives a complete and safe way of compiling the code.

Go to the directory where the miniapps code is present

$ cd astr/miniapps/tgv_solver_3d

The cpu and the gpu accelerated codes (tgvsolver_cpu.f90 and tgvsolver_gpu.cuf) are present in the same directory, which can be compiled using the following cmake commands

Compile and execute the cpu & gpu code

$ cmake all

The cpu and gpu code can also be compiled and executed separately

$ cmake cpu
$ cmake gpu

Acceleration Comparison

The time acceleration statistics can be obtained by running the following command.

$ cmake compare

A text file time_report.txt will be generated with the accelerations statistics.