[Libmesh-users] how to assemble an explicit system

[nelson - <nel...@gm...>]

hi all!

I'm trying to discretize a nonlinear reaction diffusion equation. The
equation is discretized in time using forward euler method. So i use
the TransientExplicitSystem class. The problem arise when i try to
update the solution. In order to have updated values i have to use

 *system.solution = *system.rhs;

this seems to me not to be ok, because i will hope that the library
would do it for me after the assembly of the problem RHS. And i think
that manipulating directly system.solution is not a good idea if i
will solve the equation using MPI...how I will update the solution in
this case?