cp_cfm_diag Module Reference

used for collecting diagonalization schemes available for cp_cfm_type More...

Functions/Subroutines
subroutine, public	cp_cfm_heevd (matrix, eigenvectors, eigenvalues)
	Perform a diagonalisation of a complex matrix. More...
subroutine, public	cp_cfm_geeig (amatrix, bmatrix, eigenvectors, eigenvalues, work)
	General Eigenvalue Problem AX = BXE Single option version: Cholesky decomposition of B. More...
subroutine, public	cp_cfm_geeig_canon (amatrix, bmatrix, eigenvectors, eigenvalues, work, epseig)
	General Eigenvalue Problem AX = BXE Use canonical orthogonalization. More...

Detailed Description

used for collecting diagonalization schemes available for cp_cfm_type

Note

first version : only one routine right now

Author

Joost VandeVondele (2003-09)

Function/Subroutine Documentation

cp_cfm_heevd()

subroutine, public cp_cfm_diag::cp_cfm_heevd	(	type(cp_cfm_type), intent(in)	matrix,
		type(cp_cfm_type), intent(in)	eigenvectors,
		real(kind=dp), dimension(:), intent(out)	eigenvalues
	)

Perform a diagonalisation of a complex matrix.

Parameters

matrix	...
eigenvectors	...
eigenvalues	...

History

• (De)Allocation checks updated (15.02.2011,MK)

Author

Joost VandeVondele

Definition at line 51 of file cp_cfm_diag.F.

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cp_cfm_geeig()

subroutine, public cp_cfm_diag::cp_cfm_geeig	(	type(cp_cfm_type), intent(in)	amatrix,
		type(cp_cfm_type), intent(in)	bmatrix,
		type(cp_cfm_type), intent(in)	eigenvectors,
		real(kind=dp), dimension(:)	eigenvalues,
		type(cp_cfm_type), intent(in)	work
	)

General Eigenvalue Problem AX = BXE Single option version: Cholesky decomposition of B.

Parameters

amatrix	...
bmatrix	...
eigenvectors	...
eigenvalues	...
work	...

Definition at line 144 of file cp_cfm_diag.F.

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cp_cfm_geeig_canon()

subroutine, public cp_cfm_diag::cp_cfm_geeig_canon	(	type(cp_cfm_type), intent(in)	amatrix,
		type(cp_cfm_type), intent(in)	bmatrix,
		type(cp_cfm_type), intent(in)	eigenvectors,
		real(kind=dp), dimension(:)	eigenvalues,
		type(cp_cfm_type), intent(in)	work,
		real(kind=dp), intent(in)	epseig
	)

General Eigenvalue Problem AX = BXE Use canonical orthogonalization.

Parameters

amatrix	...
bmatrix	...
eigenvectors	...
eigenvalues	...
work	...
epseig	...

Definition at line 190 of file cp_cfm_diag.F.

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