icet is a tool for the construction and sampling of alloy cluster expansions. A detailed description of the functionality provided as well as an extensive tutorial can be found in the user guide.
icet is written in Python, which allows easy integration with countless first-principles codes and analysis tools accessible from Python, and allows for a simple and intuitive user interface. All computationally demanding parts are, however, written in C++ providing performance while maintaining portability. The following snippet illustrates how one can train a cluster expansion:
cs = ClusterSpace(primitive_cell, cutoffs, species)
sc = StructureContainer(cs)
for structure in training_structures:
sc.add_structure(structure)
opt = Optimizer(sc.get_fit_data())
opt.train()
ce = ClusterExpansion(cs, opt.parameters)Afterwards the cluster expansion can be used, e.g., for finding ground state structures or sampled via Monte Carlo simulations.
For questions and help please use the icet discussion forum on matsci.org. icet and its development are hosted on gitlab.
Installation
icet can be installed using pip:
pip3 install icet --user
or via conda:
conda install -c conda-forge icet
Installation via pip requires a C++17 compliant compiler. Please consult the installation section of the user guide for details.
icet is based on Python3 and invokes functionality from other Python libraries including ase, pandas, numba, numpy, scipy, spglib, and trainstation.
Credits
icet has been developed at the Department of Physics of Chalmers University of Technology (Gothenburg, Sweden) and the Data and Software Management Center at the European Spallation Source (Copenhagen, Denmark).
When using icet in your research please cite
Also consult the credits page of the documentation for additional references.
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