[petsc-users] Restarting Multistep methods

[Alfredo J Duarte Gomez]

Good morning PETSC team,

I have been working on a code that uses the TSBDF object, and I have been
able to run successful restarts with the BDF order 1.

However, due to the nonlinearity of the problem, restarting higher order
methods from a single initial solution has led to trouble.

Are there any built in functions or procedures to save the BDF solution
vector with the necessary previous solutions so that it can be easily
restarted? Maybe saving a set of binary files?

Thank you,

-Alfredo

-- 
Alfredo Duarte
Graduate Research Assistant
The University of Texas at Austin
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