(git:3add494)
qs_condnum Module Reference

Calculation of overlap matrix condition numbers. More...

Functions/Subroutines

subroutine, public overlap_condnum (matrixkp_s, condnum, iunit, norml1, norml2, use_arnoldi, blacs_env)
 Calculation of the overlap matrix Condition Number. More...
 

Detailed Description

Calculation of overlap matrix condition numbers.

History
Author
JGH (14.11.2016)

Function/Subroutine Documentation

◆ overlap_condnum()

subroutine, public qs_condnum::overlap_condnum ( type(dbcsr_p_type), dimension(:, :), pointer  matrixkp_s,
real(kind=dp), dimension(2), intent(inout)  condnum,
integer, intent(in)  iunit,
logical, intent(in)  norml1,
logical, intent(in)  norml2,
logical, intent(in)  use_arnoldi,
type(cp_blacs_env_type), pointer  blacs_env 
)

Calculation of the overlap matrix Condition Number.

Parameters
matrixkp_sThe overlap matrices to be calculated (kpoints, optional)
condnumCondition numbers for 1 and 2 norm
iunitoutput unit
norml1logical: calculate estimate to 1-norm
norml2logical: calculate estimate to 1-norm and 2-norm condition number
use_arnoldilogical: use Arnoldi iteration to estimate 2-norm condition number
blacs_env...
Date
07.11.2016
History
Author
JHU
Version
1.0

Definition at line 63 of file qs_condnum.F.

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