spmv Interface

public interface spmv

(Specifications) This interface provides methods to compute the matrix-vector product

$y = \alpha \mathrm{op}(A) x + \beta y$

for the different matrix types defined by stdlib_specialmatrices.

Subroutines

private module subroutine spmv_tridiag_1d_cdp(A, x, y, alpha, beta, op)

Arguments

Type	Intent	Optional	Attributes		Name
type(tridiagonal_cdp_type),	intent(in)			::	A
complex(kind=dp),	intent(in),		contiguous, target	::	x(:)
complex(kind=dp),	intent(inout),		contiguous, target	::	y(:)
real(kind=dp),	intent(in),	optional		::	alpha
real(kind=dp),	intent(in),	optional		::	beta
character(len=1),	intent(in),	optional		::	op

private module subroutine spmv_tridiag_1d_csp(A, x, y, alpha, beta, op)

Arguments

Type	Intent	Optional	Attributes		Name
type(tridiagonal_csp_type),	intent(in)			::	A
complex(kind=sp),	intent(in),		contiguous, target	::	x(:)
complex(kind=sp),	intent(inout),		contiguous, target	::	y(:)
real(kind=sp),	intent(in),	optional		::	alpha
real(kind=sp),	intent(in),	optional		::	beta
character(len=1),	intent(in),	optional		::	op

private module subroutine spmv_tridiag_1d_dp(A, x, y, alpha, beta, op)

Arguments

Type	Intent	Optional	Attributes		Name
type(tridiagonal_dp_type),	intent(in)			::	A
real(kind=dp),	intent(in),		contiguous, target	::	x(:)
real(kind=dp),	intent(inout),		contiguous, target	::	y(:)
real(kind=dp),	intent(in),	optional		::	alpha
real(kind=dp),	intent(in),	optional		::	beta
character(len=1),	intent(in),	optional		::	op

private module subroutine spmv_tridiag_1d_sp(A, x, y, alpha, beta, op)

Arguments

Type	Intent	Optional	Attributes		Name
type(tridiagonal_sp_type),	intent(in)			::	A
real(kind=sp),	intent(in),		contiguous, target	::	x(:)
real(kind=sp),	intent(inout),		contiguous, target	::	y(:)
real(kind=sp),	intent(in),	optional		::	alpha
real(kind=sp),	intent(in),	optional		::	beta
character(len=1),	intent(in),	optional		::	op

private module subroutine spmv_tridiag_2d_cdp(A, x, y, alpha, beta, op)

Arguments

Type	Intent	Optional	Attributes		Name
type(tridiagonal_cdp_type),	intent(in)			::	A
complex(kind=dp),	intent(in),		contiguous, target	::	x(:,:)
complex(kind=dp),	intent(inout),		contiguous, target	::	y(:,:)
real(kind=dp),	intent(in),	optional		::	alpha
real(kind=dp),	intent(in),	optional		::	beta
character(len=1),	intent(in),	optional		::	op

private module subroutine spmv_tridiag_2d_csp(A, x, y, alpha, beta, op)

Arguments

Type	Intent	Optional	Attributes		Name
type(tridiagonal_csp_type),	intent(in)			::	A
complex(kind=sp),	intent(in),		contiguous, target	::	x(:,:)
complex(kind=sp),	intent(inout),		contiguous, target	::	y(:,:)
real(kind=sp),	intent(in),	optional		::	alpha
real(kind=sp),	intent(in),	optional		::	beta
character(len=1),	intent(in),	optional		::	op

private module subroutine spmv_tridiag_2d_dp(A, x, y, alpha, beta, op)

Arguments

Type	Intent	Optional	Attributes		Name
type(tridiagonal_dp_type),	intent(in)			::	A
real(kind=dp),	intent(in),		contiguous, target	::	x(:,:)
real(kind=dp),	intent(inout),		contiguous, target	::	y(:,:)
real(kind=dp),	intent(in),	optional		::	alpha
real(kind=dp),	intent(in),	optional		::	beta
character(len=1),	intent(in),	optional		::	op

private module subroutine spmv_tridiag_2d_sp(A, x, y, alpha, beta, op)

Arguments

Type	Intent	Optional	Attributes		Name
type(tridiagonal_sp_type),	intent(in)			::	A
real(kind=sp),	intent(in),		contiguous, target	::	x(:,:)
real(kind=sp),	intent(inout),		contiguous, target	::	y(:,:)
real(kind=sp),	intent(in),	optional		::	alpha
real(kind=sp),	intent(in),	optional		::	beta
character(len=1),	intent(in),	optional		::	op