# PIGLET

References: Ceriotti2012

Controls the PI Generalized Langevin Equation thermostat. Needs the exact harmonic integrator [Edit on GitHub]

Subsections

- EXTRA_DOF
- RNG_INIT

## Keywords

- MATRICES_FILE_NAME

- NEXTRA_DOF

- SMATRIX_INIT

- THERMOSTAT_ENERGY

## Keyword descriptions

MATRICES_FILE_NAME: string = PIGLET.MAT

  Filename containig the raw matrices from https://gle4md.org/index.html?page=matrix. [Edit on GitHub]

NEXTRA_DOF: integer = 8

  Number of extra degrees of freedom to ensure markovian dynamics [Edit on GitHub]

SMATRIX_INIT: enum = CHOLESKY

  Usage: SMATRIX_INIT (CHOLESKY|DIAGONAL)

  Valid values:

  - `CHOLESKY`

  - `DIAGONAL`

  Select algorithm to initialize piglet S-matrices [Edit on GitHub]

THERMOSTAT_ENERGY: real = 0.00000000E+000

  Usage: THERMOSTAT_ENERGY {real}

  Thermostat energy for conserved quantity. Only useful in restart files. [Edit on GitHub]