grid_tools  1.13.0
pmat2::ldltb Interface Reference

Private Member Functions

subroutine ldltb (m, mah1, a)
 [L]*[D]*[L^T] factoring of symmetric band matrix A (root-free Cholesky). More...
 
subroutine dldltb (m, mah1, a)
 [L]*[D]*[L^T] factoring of symmetric matrix A (root-free Cholesky). More...
 

Detailed Description

Definition at line 65 of file pmat2.f90.

Constructor & Destructor Documentation

◆ ldltb()

subroutine pmat2::ldltb::ldltb ( integer(spi), intent(in)  m,
integer(spi), intent(in)  mah1,
real(sp), dimension(m,-mah1:0), intent(inout)  a 
)
private

[L]*[D]*[L^T] factoring of symmetric band matrix A (root-free Cholesky).

[L] is lower triangular with unit main diagonal [D] is a diagonal matrix.

Parameters
[in]msize of symmetric matrix A
[in]mah1semi-bandwidth of matrix A
[in,out]ainput lower (left) part of symmetric A; output its factors encoded as [L-I]+[D**-1]
Author
R. J. Purser, Tsukasa Fujita (JMA)
Date
1999

Definition at line 609 of file pmat2.f90.

Member Function/Subroutine Documentation

◆ dldltb()

subroutine pmat2::ldltb::dldltb ( integer(spi), intent(in)  m,
integer(spi), intent(in)  mah1,
real(dp), dimension(m,-mah1:0), intent(inout)  a 
)
private

[L]*[D]*[L^T] factoring of symmetric matrix A (root-free Cholesky).

[L] is lower triangular with unit main diagonal [D] is a diagonal matrix

Parameters
[in]msize of symmetric matrix A
[in]mah1semi-bandwidth of matrix A
[in,out]ainput lower (left) part of symmetric A; output its factors encoded as [L-I]+[D**-1]
Author
R. J. Purser, Tsukasa Fujita (JMA)
Date
1999

Definition at line 645 of file pmat2.f90.


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