articleThe Journal of Chemical PhysicsMay 13, 2020GREEN OA

P SI4 1.4: Open-source software for high-throughput quantum chemistry

Molecular Sciences Software Institute · Georgia Institute of Technology · +18 more institutions

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Abstract

PSI4 is a free and open-source ab initio electronic structure program providing implementations of Hartree-Fock, density functional theory, many-body perturbation theory, configuration interaction, density cumulant theory, symmetry-adapted perturbation theory, and coupled-cluster theory. Most of the methods are quite efficient, thanks to density fitting and multi-core parallelism. The program is a hybrid of C++ and Python, and calculations may be run with very simple text files or using the Python API, facilitating post-processing and complex workflows; method developers also have access to most of PSI4's core functionalities via Python. Job specification may be passed using The Molecular Sciences Software…

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Authors

35

Topics & keywords

Keywords
  • Python (programming language)
  • Computer science
  • Workflow
  • Interoperability
  • Software
  • Computation
  • Computational science
  • Coupled cluster
UN Sustainable Development Goals
  • Industry, innovation and infrastructure
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