Abstract
In the calculations of perturbations terms in SFEM, coefficient matrices are always the same. For such kind of problems, a single seed method and its derivations have been reported. The Seed Method is a kind of Krylov Subspace Methods which can reduce computational cost of CG iterations recycling the subspaces produced by one seed system. We applied the Seed Method and implemented in the framework of SFEM. Numerical examples have shown that the total time of calculations of perturbation terms has been reduced to 55%.
