On Thu, 21 Feb 2008, Nachiket Gokhale wrote: > I'm not an expert on Libmesh, but I recall that PETSC allows one to > set the iinitial guess. If PETSc can be accessed through the libmesh > interface then it should be possible quite easily.
The behavior in libMesh should (in this case) be practically automatic: the current System.solution value gets used as the initial guess in the next solve. I've only verified this behavior for the NewtonSolver I wrote, but I seem to recall us fixing one of the other solvers to make sure it worked that way too. In other words, after solving your system with parameter 1, you ought to be able to just solve it again with parameter 2 and it'll begin iterating from the parameter 1 solution. If one of the solver classes doesn't have that behavior let us know; I'd consider it a bug. --- Roy ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
