ABINIT

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This article is a draft

This is not a complete article: This is a Draft, a work in progress that is intended to be published into an article, which may or may not be ready for inclusion in the main wiki. It should not necessarily be considered factual or authoritative.

"ABINIT is a software suite to calculate the optical, mechanical, vibrational, and other observable properties of materials. Starting from the quantum equations of density functional theory, you can build up to advanced applications with perturbation theories based on DFT, and many-body Green's functions (GW and DMFT). ABINIT can calculate molecules, nanostructures and solids with any chemical composition, and comes with several complete and robust tables of atomic potentials."

Run module spider abinit to see what versions of ABINIT are currently available. Run it again with a specific version number, e.g. module spider abinit/8.4.4, to see if there are other modules that must be loaded first. See Using modules for more on the module command.

Atomic data files

Compute Canada does not maintain a collection of atomic data files for ABINIT. You should obtain the atomic data files you need for your calculation by following the links from the Atomic data files page at abinit.org.

These files rarely exceed 1 megabyte in size, so they may be downloaded directly to any login node using wget and the URL of the data file. For example,

[name@server ~]$ wget http://www.pseudo-dojo.org/pseudos/nc-sr-04_pbe_standard/H.psp8.gz

to download the pseudopotential file for hydrogen.

Data files for the tutorials and tests can also be found at $EBROOTABINIT/share/abinit-test/Psps_for_tests/.

Example input

Input files mentioned in the ABINIT tutorial can be found at $EBROOTABINIT/share/abinit-test/tutorial.

Example job script

ABINIT calculations other than the most trivial tests or tutorial examples should be run via the job scheduler, Slurm. Below is an example job script for running ABINIT. You should be able to adapt this to your own needs.

TO DO