Large Scale Electronic Structure Calculations with Multigrid Acceleration

Details Large Scale Electronic Structure Calculations with Multigrid Acceleration Large Scale Electronic Structure Calculations with Multigrid Acceleration

1995-06-21

arxiv.org/abs/mtrl-th/9506006v1

Physics

Condensed Matter

Materials Science

4 pages, 1 postscript figure

Scientific paper

10.1103/PhysRevB.52.R5471

We have developed a set of techniques for performing large scale ab initio calculations using multigrid accelerations and a real-space grid as a basis. The multigrid methods permit efficient calculations on ill-conditioned systems with long length scales or high energy cutoffs. The technique has been applied to systems containing up to 100 atoms, including a highly elongated diamond cell, an isolated C$_{60}$ molecule, and a 32-atom cell of GaN with the Ga d-states in valence. The method is well suited for implementation on both vector and massively parallel architectures.

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