Compiling on Linux

To compile LISFLOOD-FP on Linux, the following packages are required:

• GCC compiler, which is by default installed in most Linux distributions, like Ubuntu
• CMake
• libnuma
• libnetcdf, which is required for NetCDF output and dynamic rainfall support
• CUDA toolkit, required to run GPU-accelerated solvers

As an example, on Ubuntu, CMake, libnuma and libnetcdf can be installed, by entering the following commands in the terminal:

sudo snap install cmake --classic
sudo apt install libnuma-dev libnetcdf-dev

After installing the packages, open a terminal in LISFLOOD-FP-trunk directory, and enter the following commands:

cmake -S . -B build
cmake --build build

If libnuma is installed in a non-standard location, the following commands must be used, in which <path> denotes the installation directory of libnuma:

cmake -S . -B build -DNUMA_ROOT=<path>
cmake --build build

By doing so, the lisflood executable will be generated in the build sub-directory.

Updates on compiling for RedHat linux distribution (Thanks to Justin R. Davis from UFL)

While the compiling process explained above has been tested on Debian-based distributions like Ubuntu, a few ammendment might be required for compiling on RedHat-based distributions, notably, on old versions like RHEL7:

• As RHEL7 only supports old versions of CMake and GCC, the following commands can be used to prepare the libraries and compile the CPU solvers

yum -y install numactl-devel numactl-libs netcdf-devel cmake3 devtoolset-11
wget https://zenodo.org/record/4073011/files/LISFLOOD-FP-8.zip
unzip LISFLOOD-FP-8.zip
cd LISFLOOD-FP-trunk/
scl enable devtoolset-11 'cmake3 -S . -B build'
scl enable devtoolset-11 'cmake3 --build build'

• To compile the GPU solvers, the version of CUDA toolkit must be at least v10.0.

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