Policy returning $$A$$-conjugate actions.

Selects the negative gradient / residual as an initial action $$s_0 = b - A x_0$$ and then successively generates $$A$$-conjugate actions, i.e. the actions satisfy $$s_i^\top A s_j = 0$$ iff $$i \neq j$$.

Methods Summary

 __call__(solver_state) Return an action for a given solver state.

Methods Documentation

__call__(solver_state)[source]

Return an action for a given solver state.

Parameters

solver_state (LinearSolverState) – Current state of the linear solver.

Returns

Next action to take.

Return type

action