Pass x_prev to all solve, computeResiduum, etc. functions.

Dmitri Naumov authored 1 year ago and wenqing committed 1 year ago

The reset must also happen for the first time step which
might have failed in the second iteration.

Reason for the original statement is not clear.

to better distinguish close time steps, small deltas.

This ensures computation of secondary variables only for
"active" subdomains.
Fixes incorrect output of secondary variables for the
initial conditions.

Public interface function to request output

[PL] TimeLoop::outputSolution(): Use internal attribut _outputs instead passing one Output object as parameter

# Conflicts:
#	ProcessLib/TimeLoop.cpp

Use _output->getFixedOutputTimes() in a higher level abstraction level makes
computeTimeStepping() a bit more independent from the output.

md rename timeloop::doTimestep