25. RESTART Namelist

25.1. Overview

Truchas is able to use data from a previous calculation to initialize a new calculation. Such a restart calculation is invoked by using the -r command line argument (Table 1.1.1) to the executable with the path name of the restart data file. By default, all appropriate data from the restart file is used. This optional namelist provides variables to limit the restart data that will be used.

25.2. RESTART Namelist Features

Required/Optional : Optional

Single/Multiple Instances: Single

Ignore_T

Description : When restarting, the initial time and starting cycle count are normally extracted from the restart file. If this flag is true, then those values are ignored and the first value of the Output_T array is used as the initial time and the cycle count starts at 0, as happens with a non-restart run.
Type        : logical
Default     : false

Ignore_Dt

Description : When restarting, the initial time step size is normally extracted from the restart file. If this flag is true, then that value is ignored and the value specified by Dt_Init from the NUMERICS namelist is used instead. Note that if Dt_Constant in the NUMERICS namelist is specified then its value is used regardless.
Type        : logical
Default     : false

Ignore_Joule_Heat

Description : If this flag is true, the Joule heat data in the restart file (if any) will be ignored when initializing the code. This variable is only relevant for restart calculations with Electromagnetics enabled in the PHYSICS namelist.
Type        : logical
Default     : false