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POT3D is a Fortran code that computes potential field solutions to approximate the solar coronal magnetic field using observed photospheric magnetic fields as a boundary condition. It can be used to generate potential field source surface (PFSS), potential field current sheet (PFCS), and open field (OF) models. It has been (and continues to be) used for numerous studies of coronal structure and dynamics. The code is highly parallelized using MPI and is GPU-accelerated using Fortran standard parallelism (do concurrent) and OpenACC, along with an option to use the NVIDIA cuSparse library. The HDF5 file format is used for input/output.
Presentation
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Downloading and compiling POT3D
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# MPI=openmpi-4.1.2-intel2021.4.0
MPI=intelmpi-2021.7.0
if [[ "$MPI" =~ ^intel ]]; then
module load hdf5/1.10.7-impi-intel
export I_MPI_F90=ifort
else
module load hdf5/1.10.7-ompi-intel
export OMPI_MPIF90=ifort
fi
#################################################################
# Location of local hdf5 installed with same compiler being used for POT3D:
HDF5_INCLUDE_DIR="$HDF5_ROOT/include"
HDF5_LIB_DIR="$HDF5_ROOT/lib"
# Fortran HDF5 library flags (these can be version dependent):
HDF5_LIB_FLAGS="-lhdf5_fortran -lhdf5_hl_fortran -lhdf5 -lhdf5_hl""
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Sample build script for PSC:
Download HPC-X from ISC23 SCC Getting Started with Bridges-2 Cluster.
Download and install HDF5 before building POT3D.
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source /jet/packages/intel/oneapi/compiler/2022.1.0/env/vars.sh
source /jet/packages/intel/oneapi/mkl/2022.1.0/env/vars.sh
# MPI=intelmpi
MPI=hpcx
if [[ "$MPI" =~ ^hpcx ]]; then
module use $HOME/hpcx-2.13.1/modulefiles
module load hpcx
export OMPI_MPICC=icc
export OMPI_MPICXX=icpc
export OMPI_MPIFC=ifort
export OMPI_MPIF90=ifort
export FC=mpif90
else
source /jet/packages/intel/oneapi/mpi/2021.6.0/env/vars.sh
export FC=mpiifort
fi
#################################################################
# Location of local hdf5 installed with same compiler being used for POT3D:
HDF5_INCLUDE_DIR="$HDF5_ROOT/include"
HDF5_LIB_DIR="$HDF5_ROOT/lib"
# Fortran HDF5 library flags (these can be version dependent):
HDF5_LIB_FLAGS="-lhdf5_fortran -lhdf5_hl_fortran -lhdf5 -lhdf5_hl""
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