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We consider three improvements to seed methods for Hermitian linear systemswith multiple right-hand sides: only the Krylov subspace for the first systemis used for seeding subsequent right-hand sides, the first right-hand side issolved past convergence, and periodic re-orthogonalization is used in order tocontrol roundoff errors associated with the Conjugate Gradient algorithm. Themethod is tested for the case of Wilson fermions near kappa critical and aconsiderable speed up in the convergence is observed.

Seed methods for linear equations in lattice qcd problems with multiple right-hand sides