Difference between revisions of "Vasp"
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|{{#vardefine:url|https://www.vasp.at/}} | |{{#vardefine:url|https://www.vasp.at/}} | ||
<!--CONFIGURATION: OPTIONAL (|1}} means it's ON)--> | <!--CONFIGURATION: OPTIONAL (|1}} means it's ON)--> | ||
| − | |{{#vardefine:conf|}} <!--CONFIGURATION--> | + | |{{#vardefine:conf|vasp}} <!--CONFIGURATION--> |
| − | |{{#vardefine:exe|}} <!--ADDITIONAL INFO--> | + | |{{#vardefine:exe|vasp}} <!--ADDITIONAL INFO--> |
|{{#vardefine:job|}} <!--JOB SCRIPTS--> | |{{#vardefine:job|}} <!--JOB SCRIPTS--> | ||
|{{#vardefine:policy|}} <!--POLICY--> | |{{#vardefine:policy|}} <!--POLICY--> | ||
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* HPC_{{uc:{{#var:app}}}}_BIN - executable program directory | * HPC_{{uc:{{#var:app}}}}_BIN - executable program directory | ||
* HPC_{{uc:{{#var:app}}}}_LIB - library directory | * HPC_{{uc:{{#var:app}}}}_LIB - library directory | ||
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<!--Configuration--> | <!--Configuration--> | ||
| − | {{#if: {{#var: | + | {{#if: {{#var: vasp}}|==Configuration== |
| − | See the [[{{PAGENAME}}_Configuration]] page for {{#var: app}} configuration details. | + | <!See the [[{{PAGENAME}}_Configuration]] page for {{#var: app}} configuration details.> |
|}} | |}} | ||
<!--Run--> | <!--Run--> | ||
| − | {{#if: {{# | + | {{#if: {{#conf: vasp}}|==Additional Information== |
| − | + | Research computing does not have a license for VASP for HiPerGator users. The individual research groups acquire a license from the developers (see https://www.vasp.at/ for details). The HPG staff provides support for installing and assuring the optimal performance on HPG platforms. Also, limited support for its use is available. If you need assistance in installing VASP please submit a support ticket addressed to Ajith Perera | |
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| − | Ajith | ||
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| − | {{#if: {{# | + | {{#if: {{#app: vasp}}|==Job Script Examples== |
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See the [[{{PAGENAME}}_Job_Scripts]] page for {{#var: app}} Job script examples. | See the [[{{PAGENAME}}_Job_Scripts]] page for {{#var: app}} Job script examples. | ||
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Latest revision as of 14:02, 3 June 2024
Description
The Vienna Ab initio Simulation Package (VASP) is a computer program for atomic scale materials modeling, e.g. electronic structure calculations and quantum-mechanical molecular dynamics, from first principles.
VASP computes an approximate solution to the many-body Schrödinger equation, either within density functional theory (DFT), solving the Kohn-Sham equations, or within the Hartree-Fock (HF) approximation, solving the Roothaan equations. Hybrid functionals that mix the Hartree-Fock approach with density functional theory are implemented as well. Furthermore, Green's functions methods (GW quasiparticles, and ACFDT-RPA) and many-body perturbation theory (2nd-order Møller-Plesset) are available in VASP.
In VASP, central quantities, like the one-electron orbitals, the electronic charge density, and the local potential are expressed in plane wave basis sets. The interactions between the electrons and ions are described using norm-conserving or ultrasoft pseudopotentials, or the projector-augmented-wave method.
To determine the electronic ground state, VASP makes use of efficient iterative matrix diagonalization techniques, like the residual minimization method with direct inversion of the iterative subspace (RMM-DIIS) or blocked Davidson algorithms. These are coupled with highly efficient Broyden and Pulay density mixing schemes to speed up the self-consistency cycle.
Environment Modules
Run module spider vasp to find out what environment modules are available for this application.
System Variables
- HPC_VASP_DIR - installation directory
- HPC_VASP_BIN - executable program directory
- HPC_VASP_LIB - library directory
Additional Information
Research computing does not have a license for VASP for HiPerGator users. The individual research groups acquire a license from the developers (see https://www.vasp.at/ for details). The HPG staff provides support for installing and assuring the optimal performance on HPG platforms. Also, limited support for its use is available. If you need assistance in installing VASP please submit a support ticket addressed to Ajith Perera
Job Script Examples
See the Vasp_Job_Scripts page for vasp Job script examples.