# DRIVER

References: Ceriotti2014, Kapil2016

This section defines the parameters needed to run in i-PI driver mode. [Edit on GitHub]

## Keywords

- HOST

- PORT

- SLEEP_TIME

- UNIX

## Keyword descriptions

HOST: string = localhost

  Usage: host <HOSTNAME>

  Mentions: ⭐i-PI

  Host name for the i-PI server. [Edit on GitHub]

PORT: integer = 12345

  Usage: port <INTEGER>

  Mentions: ⭐i-PI

  Port number for the i-PI server. [Edit on GitHub]

SLEEP_TIME: real = 1.00000000E-002

  Usage: SLEEP_TIME 0.1

  Sleeping time while waiting for for driver commands [s]. [Edit on GitHub]

UNIX: logical = F

  Lone keyword: `T`

  Usage: unix LOGICAL

  Mentions: ⭐i-PI

  Use a UNIX socket rather than an INET socket. [Edit on GitHub]