KSPBICG#

Implements the Biconjugate gradient method (similar to running the conjugate gradient on the normal equations).

Notes#

This method requires that one be apply to apply the transpose of the preconditioner and operator as well as the operator and preconditioner.

Supports only left preconditioning

See KSPCGNE for code that EXACTLY runs the preconditioned conjugate gradient method on the normal equations

See KSPBCGS for the famous stabilized variant of this algorithm

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