[petsc-users] nonlinear eigenvalue problem with structured mesh
gideon.simpson at gmail.com
Mon Jul 6 19:43:28 CDT 2015
I have a nonlinear eigenvalue problem for a system of equations, of the form,
-Delta u + f(u) = E * u,
where E is my nonlinear eigenvalue parameter, and u and f are vector valued.
I thus have the following two things to contend with:
1. E is a scalar which needs to be distributed across all the processes when the right hand side is formed
2. I would like to be able to use a da to manage the spatial and multicomponent nature of u
Obviously the Vec that my nonlinear solver is going to search for has to store both bits of data. Is there a clever petsc way to handle this, or will I need to do all the indexing and broadcasting by hand?
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