Maybe acronym becomes meaningless with time but AFAIK, this is the acronym still used in recent papers related to feti by even its developers. Sorry to say that but for some people, feti is the only way to beat direct solvers.
On Mon, Dec 29, 2014 at 9:31 PM, Jed Brown <[email protected]> wrote: > Alp Kalpalp <[email protected]> writes: > > > Thanks for the answers, > > > > Jed, PCPG stands for Preconditioned > > Acronyms like PCG were outdated before I was born, much like "digital > computer". All Krylov methods in PETSc are preconditioned; let's not > contribute to meaningless acronyms. > > > Conjugate Projected Gradient. Since any FETI literature suggests PCPG, > > I am planning to go stick with it. My plan is to extend your KSPCG > > algorithm with optional application of projection space and > > re-orthogonalizations. > > Great. >
