stdlib_solve_bicgstab Interface
public interface stdlib_solve_bicgstab
Subroutines
private module subroutine stdlib_solve_bicgstab_CSR_dp(A, b, x, di, rtol, atol, maxiter, restart, precond, M, workspace)
linear operator matrix
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| type(CSR_dp_type), | intent(in) | :: | A | |||
| real(kind=dp), | intent(in) | :: | b(:) |
right-hand side vector |
||
| real(kind=dp), | intent(inout) | :: | x(:) |
solution vector and initial guess |
||
| logical(kind=int8), | intent(in), | optional, | target | :: | di(:) |
dirichlet conditions mask |
| real(kind=dp), | intent(in), | optional | :: | rtol |
relative tolerance for convergence |
|
| real(kind=dp), | intent(in), | optional | :: | atol |
absolute tolerance for convergence |
|
| integer, | intent(in), | optional | :: | maxiter |
maximum number of iterations |
|
| logical, | intent(in), | optional | :: | restart |
restart flag |
|
| integer, | intent(in), | optional | :: | precond |
preconditioner method enumerator |
|
| class(stdlib_linop_dp_type), | intent(in), | optional, | target | :: | M |
preconditioner linear operator |
| type(stdlib_solver_workspace_dp_type), | intent(inout), | optional, | target | :: | workspace |
workspace for the solver |
private module subroutine stdlib_solve_bicgstab_CSR_sp(A, b, x, di, rtol, atol, maxiter, restart, precond, M, workspace)
linear operator matrix
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| type(CSR_sp_type), | intent(in) | :: | A | |||
| real(kind=sp), | intent(in) | :: | b(:) |
right-hand side vector |
||
| real(kind=sp), | intent(inout) | :: | x(:) |
solution vector and initial guess |
||
| logical(kind=int8), | intent(in), | optional, | target | :: | di(:) |
dirichlet conditions mask |
| real(kind=sp), | intent(in), | optional | :: | rtol |
relative tolerance for convergence |
|
| real(kind=sp), | intent(in), | optional | :: | atol |
absolute tolerance for convergence |
|
| integer, | intent(in), | optional | :: | maxiter |
maximum number of iterations |
|
| logical, | intent(in), | optional | :: | restart |
restart flag |
|
| integer, | intent(in), | optional | :: | precond |
preconditioner method enumerator |
|
| class(stdlib_linop_sp_type), | intent(in), | optional, | target | :: | M |
preconditioner linear operator |
| type(stdlib_solver_workspace_sp_type), | intent(inout), | optional, | target | :: | workspace |
workspace for the solver |
private module subroutine stdlib_solve_bicgstab_dense_dp(A, b, x, di, rtol, atol, maxiter, restart, precond, M, workspace)
linear operator matrix
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=dp), | intent(in) | :: | A(:,:) | |||
| real(kind=dp), | intent(in) | :: | b(:) |
right-hand side vector |
||
| real(kind=dp), | intent(inout) | :: | x(:) |
solution vector and initial guess |
||
| logical(kind=int8), | intent(in), | optional, | target | :: | di(:) |
dirichlet conditions mask |
| real(kind=dp), | intent(in), | optional | :: | rtol |
relative tolerance for convergence |
|
| real(kind=dp), | intent(in), | optional | :: | atol |
absolute tolerance for convergence |
|
| integer, | intent(in), | optional | :: | maxiter |
maximum number of iterations |
|
| logical, | intent(in), | optional | :: | restart |
restart flag |
|
| integer, | intent(in), | optional | :: | precond |
preconditioner method enumerator |
|
| class(stdlib_linop_dp_type), | intent(in), | optional, | target | :: | M |
preconditioner linear operator |
| type(stdlib_solver_workspace_dp_type), | intent(inout), | optional, | target | :: | workspace |
workspace for the solver |
private module subroutine stdlib_solve_bicgstab_dense_sp(A, b, x, di, rtol, atol, maxiter, restart, precond, M, workspace)
linear operator matrix
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=sp), | intent(in) | :: | A(:,:) | |||
| real(kind=sp), | intent(in) | :: | b(:) |
right-hand side vector |
||
| real(kind=sp), | intent(inout) | :: | x(:) |
solution vector and initial guess |
||
| logical(kind=int8), | intent(in), | optional, | target | :: | di(:) |
dirichlet conditions mask |
| real(kind=sp), | intent(in), | optional | :: | rtol |
relative tolerance for convergence |
|
| real(kind=sp), | intent(in), | optional | :: | atol |
absolute tolerance for convergence |
|
| integer, | intent(in), | optional | :: | maxiter |
maximum number of iterations |
|
| logical, | intent(in), | optional | :: | restart |
restart flag |
|
| integer, | intent(in), | optional | :: | precond |
preconditioner method enumerator |
|
| class(stdlib_linop_sp_type), | intent(in), | optional, | target | :: | M |
preconditioner linear operator |
| type(stdlib_solver_workspace_sp_type), | intent(inout), | optional, | target | :: | workspace |
workspace for the solver |