[Libmesh-users] Use of comm.barrier()

[Viviana P. B. <vpa...@uc...>]

Hello,

I have a correct solution of my problem and now I want to run in parallel.
I'm using all the correct iterators and the program compiles and runs,
except now the solution is completely different and inconsistent to the
problem run in serial. I'm using the SuperLU solver.

I suspect that I'm making some mistakes when running in parallel, since it
might be the case that the information is not being shared simultaneously?
Is it necessary to impose communication barriers and if so in which steps
of the solution should this be implemented?

Thank you. Best,

Viviana.