.. _Chap:InputsCheckpoint:

Checkpoint/Restart
==================

The following inputs must be preceded by "amr" and control checkpoint/restart.

+---------------------+-----------------------------------------------------------------------+-------------+-----------+
|                     | Description                                                           |   Type      | Default   |
+=====================+=======================================================================+=============+===========+
| restart             | If present, then the name of file to restart from                     |    String   | None      |
+---------------------+-----------------------------------------------------------------------+-------------+-----------+
| plotfile_on_restart | Write a plotfile before taking a time step                            |    bool     | false     |
+---------------------+-----------------------------------------------------------------------+-------------+-----------+
| regrid_on_restart   | Create new grids, including level 0, on restart                       |    bool     | false     |
+---------------------+-----------------------------------------------------------------------+-------------+-----------+
| check_int           | Frequency of checkpoint output;                                       |    Int      | -1        |
|                     | if -1 then no checkpoints will be written                             |             |           |
+---------------------+-----------------------------------------------------------------------+-------------+-----------+
| check_file          | Prefix to use for checkpoint output                                   |  String     | chk       |
+---------------------+-----------------------------------------------------------------------+-------------+-----------+