Barry Smith <bsm...@mcs.anl.gov> writes: > So going back to my email, now with more clarity, do we get rid of > the XXXSetSolution/RightHandSide() paradigm; this would void > questions like Mark's about what the differences are between > them**. But do we lose any useful functionality?
I think the main possible loss is if we want an automatic spatially-adaptive TSSolve. The way I see it, the caller must provide an initial condition (on some grid) and needs to know whether the returned solution is on a different grid. I'm not convinced it's PETSc's business to deal with this (nontrivial user code tends to have so many external/auxiliary dependencies that I predict most will be calling TSSolve in their own adaptive loop anyway). If it is PETSc's business, I don't have a problem with a new function that does adaptive solves.
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