MatGetVecs and MATMFFD
griffith at courant.nyu.edu
Thu Aug 21 07:01:16 CDT 2008
Hi, Folks --
I am using a home-grown "multi-Vec" (i.e., vector of vectors)
implementation with a PETSc nonlinear solver. I'd like to be able to use
PETSc's matrix-free Jacobian with this solver along with a PCCOMPOSITE
preconditioner; however, it seems like I need to override the default
implementation of MatGetVecs in order to get this to work.
Is there a kosher way to do this?
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