Time step options and variables

Collaboration diagram for Time step options and variables:

Variables
integer(c_int), pointer, save	ntcabs
	Current absolute time step number. In case of restart, this is equal to ntpabs + number of new iterations. More...
real(c_double), pointer, save	ttcabs
	Absolute time value for previous calculation. More...
integer(c_int), pointer, save	idtvar
	option for a variable time step More...

Detailed Description

Variable Documentation

idtvar

integer(c_int), pointer, save idtvar

option for a variable time step

• -1: steady algorithm
• 0: constant time step
• 1: time step constant in space but variable in time
• 2: variable time step in space and in time If the numerical scheme is a second-order in time, only the option 0 is allowed.

ntcabs

integer(c_int), pointer, save ntcabs

Current absolute time step number. In case of restart, this is equal to ntpabs + number of new iterations.

ttcabs

real(c_double), pointer, save ttcabs

Absolute time value for previous calculation.

Current absolute time.

For the restart calculations, ttcabs takes into account the physical time of the previous calculations. its value is not to be modified by the user.