Linux Installation Instructions

Required software packages:

  • Fortran 2003/2008 compiler: gfortran >= 7.x, intel >= 19

  • Git source control management tool

  • Message Passing Interface (MPI): E.g. MPICH2, Open MPI, etc.

  • BLAS/LAPACK libraries

  • Hierarchical Data Format HDF5

  • PETSc git repository

  • METIS/ParMETIS (for unstructured grids)

  • Python3, including python3-h5py and python3-matplotlib (or pip3 install h5py matplotlib)

Installation Instructions

  1. Install Git. Git is usually installed by default on most modern operating systems. It is usually available through your package manager.

  2. Install a Fortran compiler (see bullets above), MPI, BLAS/LAPACK and HDF5 libraries (Note that petsc can be configured to download and install these libraries automatically. E.g. -\-download-mpich=yes or -\-download-openmpi=yes, -\-download-hdf5=yes, -\-download-f-blas-lapack=yes)

  3. Install PETSc

    3.1. Clone petsc and check out the supported version:

    git clone https://gitlab.com/petsc/petsc petsc
cd petsc
git checkout v3.21.5

    3.2. Configure PETSc (see PETSc installation instructions).

    ./configure --COPTFLAGS='-O3' --CXXOPTFLAGS='-O3' --FOPTFLAGS='-O3 -Wno-unused-function -fallow-argument-mismatch' --with-debugging=no --download-mpich=yes --download-hdf5=yes --download-hdf5-fortran-bindings=yes --download-fblaslapack=yes --download-metis=yes --download-parmetis=yes

    Note: To support HDF5 zlib compression, add --download-hdf5-configure-arguments="--with-zlib=yes" to the command line.

    3.3. Set the PETSC_DIR and PETSC_ARCH environment variables based on the PETSc installation location (PETSC_DIR) and architecture (PETSC_ARCH: hardware, compilers, etc.). See PETSc environment variables.

    The environmental variables can be set in your ~/.bashrc file by adding the following two lines somewhere in the file:

    export PETSC_DIR=/home/username/path_to_top_level_petsc
export PETSC_ARCH=gnu-c-debug

    Note: You can check what your PETSC_ARCH actually is (the above is just an example) by opening up the directory where PETSc is installed and looking in the configure.log file for --PETSC_ARCH=. After you update your .bashrc file, either close the terminal and open a new one, or type source ./.bashrc for the changes to take effect.

    3.4. Compile PETSc

    cd $PETSC_DIR
make all

    or even better follow the ‘make’ instructions printed at the end of configuration. E.g.

    xxx=========================================================================xxx
  Configure stage complete. Now build PETSc libraries with:
  make PETSC_DIR=/proj/geo002/petsc PETSC_ARCH=cray-xt4-pgi all
xxx=========================================================================xxx

  4. Download (clone) PFLOTRAN off Bitbucket.

git clone https://bitbucket.org/pflotran/pflotran

  1. Compile PFLOTRAN (ensure that PETSC_DIR and PETSC_ARCH environment variables are properly defined, or PFLOTRAN will not compile)

cd pflotran/src/pflotran
make pflotran

Troubleshooting

Common issues with installing is found on the FAQ page: How do I resolve installation issues?