The $system block

The $system block sets up a routine for constructing the topology of a system. This block can appear multiple times in the input file.

The input parameters that are set in this block are listed below.

Block parameters

Parameter	Value Type	Description	Remarks
name	string	The name for the system/topology-construction routine.
type	string	The type of the system/topology-construction routine (see Systems and Topologies).

Type gmx

Parameter	Value Type	Description	Remarks
template	path	The path of the topology file to be used as a template.

Note

Parameters that are not listed above can also be supplied. They are not recognized by the program in any special way, but are parsed and made available in the Customization API, together with all the other block parameters, as an InputParameters object.

Example

See Tutorial for a commented example.