System prerequisites

candi will show system specific instructions on startup, but its prerequisites are relatively widely used and packaged for most operating systems. You will need compilers for C, C++ and Fortran, the GNU make system, the CMake build system, and the libraries and header files of BLAS, LAPACK and zlib, which is used for compressing the output data. You will need to install an MPI library, its headers, and the necessary executables to run MPI programs. There are some optional packages like Numdiff for checking ASPECT’s test results with reasonable accuracy, but these are not strictly required, and in some operating systems, they are not available as packages but need to be compiled from scratch. Finally, for obtaining a recent development version of ASPECT, you will need the git version control system.

An exemplary command to obtain all required packages on Ubuntu 24.04 would be:

sudo apt-get install build-essential \
                     cmake \
                     gcc \
                     g++ \
                     gfortran \
                     git \
                     libblas-dev \
                     liblapack-dev \
                     libopenmpi-dev \
                     numdiff \
                     openmpi-bin \
                     zlib1g-dev