[Libmesh-users] (no subject)

[Adam A. <ar...@cs...>]

I have an application where I need to solve three nearly identical systems.
For each system, the matrix entries and the rhs will be slightly different,
but the mesh and finite element type and degree will be identical.  I have
three questions:  1) I would like to reuse the DofMap between each of these
systems to save memory (and any other memory that is possible, I am not sure
what the overhead per system is); 2) if it is not convenient to avoid
duplication of the map memory, I would like to construct the system such that
at least the three maps are the same (will this happen automatically?); 3)
can I specify an initial guess for the solution when using an iterative
solver so that I can use the solution of one system as the initial guess for
the another.

 

Thanks you very much

 

Adam Arbree