hetf2_rk Interface

public interface hetf2_rk

HETF2_RK computes the factorization of a complex Hermitian matrix A using the bounded Bunch-Kaufman (rook) diagonal pivoting method: A = PUD(UH)(PT) or A = PLD*(LH)(PT), where U (or L) is unit upper (or lower) triangular matrix, UH (or LH) is the conjugate of U (or L), P is a permutation matrix, P*T is the transpose of P, and D is Hermitian and block diagonal with 1-by-1 and 2-by-2 diagonal blocks. This is the unblocked version of the algorithm, calling Level 2 BLAS. For more information see Further Details section.


Subroutines

public pure subroutine chetf2_rk(uplo, n, a, lda, e, ipiv, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
complex(kind=sp), intent(inout) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=sp), intent(out) :: e(*)
integer(kind=ilp), intent(out) :: ipiv(*)
integer(kind=ilp), intent(out) :: info

public pure subroutine zhetf2_rk(uplo, n, a, lda, e, ipiv, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
complex(kind=dp), intent(inout) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=dp), intent(out) :: e(*)
integer(kind=ilp), intent(out) :: ipiv(*)
integer(kind=ilp), intent(out) :: info

Module Procedures

public interface stdlib_chetf2_rk()

Arguments

None

public interface stdlib_zhetf2_rk()

Arguments

None