Syntax:
fix_modify fix-ID keyword value ...
temp value = temperature ID energy value = yes or no thermo value = yes or no
Examples:
fix_modify 3 temp myTemp fix_modify 1 thermo yes energy no
Description:
Modify one or more parameters of a previously defined fix. Not all fix styles support all parameters.
The temp keyword is used to determine how a fix computes temperature. The specified temperature ID must have been previously defined by the user via the temperature command. The default setting for temp is temperature ID = default. Fix styles that use the temp setting are temp/rescale, nvt, and npt.
The energy and thermo keywords enable a fix to compute and/or print quantities as part of the thermodynamic output to the screen and log file (if the fix defines such quantites). When the energy keyword is set to yes, the fix computes a contribution to the total potential energy that is printed as PotEng during thermodynamic output. When the thermo keyword is set to yes, the fix prints one or more values that are appended to the list of thermodynamic outputs. See the thermo_style command for how this printing is formatted.
The fixes that support the energy and thermo options include: fix indent, fix nvt, fix nph, fix npt, fix orient/fcc, fix temp/rescale, and fix wall/lj93. See the individual fix commands for more info on what is computed and/or printed.
Restrictions: none
Related commands:
fix, temperature, thermo_style
Default:
The option defaults are temp = default, energy = no, thermo = no.