la_lapack::sytrf Interface Reference

SYTRF: computes the factorization of a complex symmetric matrix A using the Bunch-Kaufman diagonal pivoting method. The form of the factorization is A = U*D*U**T or A = L*D*L**T where U (or L) is a product of permutation and unit upper (lower) triangular matrices, and D is symmetric and block diagonal with 1-by-1 and 2-by-2 diagonal blocks. This is the blocked version of the algorithm, calling Level 3 BLAS. More...

Public Member Functions
pure subroutine	csytrf (uplo, n, a, lda, ipiv, work, lwork, info)
	la_csytrf
pure subroutine	dsytrf (uplo, n, a, lda, ipiv, work, lwork, info)
	la_dsytrf
	la_qsytrf
pure subroutine	ssytrf (uplo, n, a, lda, ipiv, work, lwork, info)
	la_ssytrf
	la_wsytrf
pure subroutine	zsytrf (uplo, n, a, lda, ipiv, work, lwork, info)
	la_zsytrf

Detailed Description

SYTRF: computes the factorization of a complex symmetric matrix A using the Bunch-Kaufman diagonal pivoting method. The form of the factorization is A = U*D*U**T or A = L*D*L**T where U (or L) is a product of permutation and unit upper (lower) triangular matrices, and D is symmetric and block diagonal with 1-by-1 and 2-by-2 diagonal blocks. This is the blocked version of the algorithm, calling Level 3 BLAS.

Member Function/Subroutine Documentation

csytrf()

pure subroutine la_lapack::sytrf::csytrf	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		integer(ilp), dimension(*), intent(out)	ipiv,
		complex(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

dsytrf()

pure subroutine la_lapack::sytrf::dsytrf	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		integer(ilp), dimension(*), intent(out)	ipiv,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

la_csytrf()

la_lapack::sytrf::la_csytrf

la_dsytrf()

la_lapack::sytrf::la_dsytrf

la_qsytrf()

la_lapack::sytrf::la_qsytrf

la_ssytrf()

la_lapack::sytrf::la_ssytrf

la_wsytrf()

la_lapack::sytrf::la_wsytrf

la_zsytrf()

la_lapack::sytrf::la_zsytrf

ssytrf()

pure subroutine la_lapack::sytrf::ssytrf	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		integer(ilp), dimension(*), intent(out)	ipiv,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

zsytrf()

pure subroutine la_lapack::sytrf::zsytrf	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		integer(ilp), dimension(*), intent(out)	ipiv,
		complex(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

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The documentation for this interface was generated from the following file:

• la_lapack.f90