pmat2::udlbv Interface Reference

Private Member Functions
subroutine	udlbv (m, mah1, mah2, a, v)
	Back-substitution step of linear inversion involving banded LDU factored matrix and input vector, v. More...
subroutine	dudlbv (m, mah1, mah2, a, v)
	Back-substitution step of linear inversion involving banded LDU factored matrix and input vector, v. More...

Detailed Description

Definition at line 70 of file pmat2.f90.

Constructor & Destructor Documentation

subroutine pmat2::udlbv::udlbv ( integer(spi), intent(in)  m, integer(spi), intent(in)  mah1, integer(spi), intent(in)  mah2, real(sp), dimension(m,-mah1:mah2), intent(in)  a, real(sp), dimension(m), intent(inout)  v  )

private

Back-substitution step of linear inversion involving banded LDU factored matrix and input vector, v.

Output vector is [U**-1]*[D**-1]*[L**-1]*v

Parameters

[in]	m	the number of rows assumed for A and for V
[in]	mah1	the left half-bandwidth of fortran array A
[in]	mah2	the right half-bandwidth of fortran array A
[in]	a	encodes the L*D*U factorization of the linear-system matrix, as supplied by subroutine LDUB, in single precision
[in,out]	v	input as right-hand-side vector, output as solution vector

Author

R. J. Purser, Tsukasa Fujita (JMA)

Date

1994

Definition at line 891 of file pmat2.f90.

Member Function/Subroutine Documentation

subroutine pmat2::udlbv::dudlbv ( integer(spi), intent(in)  m, integer(spi), intent(in)  mah1, integer(spi), intent(in)  mah2, real(dp), dimension(m,-mah1:mah2), intent(in)  a, real(dp), dimension(m), intent(inout)  v  )

private

Back-substitution step of linear inversion involving banded LDU factored matrix and input vector, v.

Output vector is [U**-1]*[D**-1]*[L**-1]*v

Parameters

[in]	m	the number of rows assumed for A and for V
[in]	mah1	the left half-bandwidth of fortran array A
[in]	mah2	the right half-bandwidth of fortran array A
[in]	a	encodes the L*D*U factorization of the linear-system matrix, as supplied by subroutine LDUB, in double precision
[in,out]	v	input as right-hand-side vector, output as solution vector

Author

R. J. Purser, Tsukasa Fujita (JMA)

Date

1994

Definition at line 920 of file pmat2.f90.

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

• /scratch1/NCEPDEV/da/George.Gayno/ufs_utils.git/UFS_UTILS.upstream/sorc/grid_tools.fd/regional_esg_grid.fd/pmat2.f90