dependencies.rst

Dependencies

To compile SWIFT, you will need the following libraries:

HDF5

Version 1.10.x or higher is required. Input and output files are stored as HDF5 and are compatible with the GADGET-2 specification. A parallel-HDF5 build and HDF5 >= 1.12.x is recommended when running over MPI.

MPI

A recent implementation of MPI, such as Open MPI (v3.x or higher), is required, or any library that implements at least the MPI 3 standard.

Libtool

The build system depends on libtool.

FFTW

Version 3.3.x or higher is required for periodic gravity.

ParMETIS or METIS

One is required for domain decomposition and load balancing.

GSL

The GSL 2.x is required for cosmological integration.

In most cases the configuration script will be able to detect the libraries installed on the system. If that is not the case, the script can be pointed towards the libraries' location using the following parameters

./configure --with-gsl=<PATH-TO-GSL>

and similar for the other libaries.

Optional Dependencies

There are also the following optional dependencies:

libNUMA

libNUMA is used to pin threads.

TCmalloc/Jemalloc/TBBmalloc

TCmalloc/Jemalloc/TBBmalloc are used for faster memory allocations when available.

Python

To run the examples, you will need python 3 and some of the standard scientific libraries (numpy, matplotlib). Some examples make use of the swiftsimio library, which is a dedicated and maintained visualisation and analysis library for SWIFT.

GRACKLE

GRACKLE cooling is implemented in SWIFT. If you wish to take advantage of it, you will need it installed.

HEALPix C library

This is required for making light cone HEALPix maps.

CFITSIO

This may be required as a dependency of HEALPix.