MHDTurbulence

This repository contains a 3D MHD solver (MPI + OpenACC/OpenMP target/OpenMP). The current default test problem is the Kelvin–Helmholtz instability.

initial final

How to copy the source code

After you login the server, copy the programs.

git clone git@github.com:cfcanaoj/MHDTurbulence MHDTurbulence
cd MHDTurbulence

How to run

Compile

To run the code, first compile source on a GPU server. The OpenACC version (src_f90_acc_device) is the default and recommended setup.

cd src_f90_acc_device
make

The executable Simulation.x is created in ../exe directory.
If you prefer another implementation, use the appropriate directory and codes listed below.

directory	Language	GPU/CPU	Parallelization
`src_f90_acc_device`	Fortran	GPU	MPI OpenACC
`src_f90_omp_device`	Fortran	GPU	MPI OpenMP Target
`src_f90_omp_host`	Fortran	CPU	MPI OpenMP
`src_cpp_omp_device`	C++	GPU	MPI OpenMP
`src_cpp_kokkos_device`	C++	GPU	MPI Kokkos
`src_cpp_kokkos_host`	C++	CPU	MPI Kokkos

For stable simulations, please use the OpenACC (src_f90_acc_device) or CPU (src_f90_omp_host) versions.

Execution

Copy the batch script and submit the job. The script for Slurm is prepared.

cd ../exe
cp ../misc/sj_g00.sh .
sbatch sj_g00.sh

Batch scripts depend on your parallelization scheme and environment.

script	GPU/CPU	directory
`sj_g00.sh`	GPU	`src_f90_acc_device`, `src_f90_omp_device`, `src_cpp_omp_device`, `src_cpp_kokkos_device`
`sj_xd.sh`	CPU	`src_f90_omp_host`, `src_cpp_kokkos_host`