abstract_linear_solver_rsp

interface
public subroutine abstract_linear_solver_rsp(A, b, x, info, rtol, atol, preconditioner, options, transpose)

Type	Intent	Optional		Name
class(abstract_linop_rsp),	intent(in)		::	A	Linear operator to invert.
class(abstract_vector_rsp),	intent(in)		::	b	Right-hand side vector.
class(abstract_vector_rsp),	intent(inout)		::	x	Solution vector.
integer,	intent(out)		::	info	Information flag. In case of successful exit, the flag should return the number of iterations required for convergence.
real(kind=sp),	intent(in),	optional	::	rtol	Relative solver tolerance
real(kind=sp),	intent(in),	optional	::	atol	Absolute solver tolerance
class(abstract_precond_rsp),	intent(in),	optional	::	preconditioner	Preconditioner.
class(abstract_opts),	intent(in),	optional	::	options	Options passed to the linear solver.
logical,	intent(in),	optional	::	transpose	Determine whether $\mathbf{A}$ (`.false.`) or $\mathbf{A}^T$ (`.true.`) is being used.

Abstract interface to use a user-defined linear solver in LightKrylov.