librsb 1.3.0.2
Public Member Functions
blas_sparse::ussm Interface Reference

triangular solve: b <- alpha A^-1 b More...

Public Member Functions

subroutine sussm (order, transt, nrhs, alpha, t, b, ldb, istat)
 Triangular solve, by a dense matrix (aka multi-vector). Either of $B \leftarrow \alpha T^{-1} B,$ $B \leftarrow \alpha T^{-T} B,$ $B \leftarrow \alpha T^{-H} B$, depending on the value of transT.
 
subroutine dussm (order, transt, nrhs, alpha, t, b, ldb, istat)
 Triangular solve, by a dense matrix (aka multi-vector). Either of $B \leftarrow \alpha T^{-1} B,$ $B \leftarrow \alpha T^{-T} B,$ $B \leftarrow \alpha T^{-H} B$, depending on the value of transT.
 
subroutine cussm (order, transt, nrhs, alpha, t, b, ldb, istat)
 Triangular solve, by a dense matrix (aka multi-vector). Either of $B \leftarrow \alpha T^{-1} B,$ $B \leftarrow \alpha T^{-T} B,$ $B \leftarrow \alpha T^{-H} B$, depending on the value of transT.
 
subroutine zussm (order, transt, nrhs, alpha, t, b, ldb, istat)
 Triangular solve, by a dense matrix (aka multi-vector). Either of $B \leftarrow \alpha T^{-1} B,$ $B \leftarrow \alpha T^{-T} B,$ $B \leftarrow \alpha T^{-H} B$, depending on the value of transT.
 

Detailed Description

triangular solve: b <- alpha A^-1 b

Parameters
istatThe return code will be written to istat (this is a Fortran routine): either 0 (success) or -1 (failure).

Member Function/Subroutine Documentation

◆ cussm()

subroutine blas_sparse::ussm::cussm ( integer  order,
integer  transt,
integer(kind=rsb_blas_idx_kind)  nrhs,
complex(kind(1.e0))  alpha,
integer  t,
complex(kind(1.e0)), dimension (:,:)  b,
integer(kind=rsb_blas_idx_kind)  ldb,
integer(kind=rsb_blas_ist_kind), intent(out)  istat 
)

Triangular solve, by a dense matrix (aka multi-vector). Either of $B \leftarrow \alpha T^{-1} B,$ $B \leftarrow \alpha T^{-T} B,$ $B \leftarrow \alpha T^{-H} B$, depending on the value of transT.

Parameters
orderlayour of the dense array.
transTTransposition operator for matrix T.
nrhsNumber of right hand side columns.
alphaValue for $ \alpha $.
TA valid triangular matrix handle.
bDense vector b.
ldbLeading dimension of b.
Returns
On success, 0 is returned; on error, -1.
Parameters
istatThe return code will be written to istat (this is a Fortran routine): either 0 (success) or -1 (failure).

◆ dussm()

subroutine blas_sparse::ussm::dussm ( integer  order,
integer  transt,
integer(kind=rsb_blas_idx_kind)  nrhs,
real(kind(1.d0))  alpha,
integer  t,
real(kind(1.d0)), dimension (:,:)  b,
integer(kind=rsb_blas_idx_kind)  ldb,
integer(kind=rsb_blas_ist_kind), intent(out)  istat 
)

Triangular solve, by a dense matrix (aka multi-vector). Either of $B \leftarrow \alpha T^{-1} B,$ $B \leftarrow \alpha T^{-T} B,$ $B \leftarrow \alpha T^{-H} B$, depending on the value of transT.

Parameters
orderlayour of the dense array.
transTTransposition operator for matrix T.
nrhsNumber of right hand side columns.
alphaValue for $ \alpha $.
TA valid triangular matrix handle.
bDense vector b.
ldbLeading dimension of b.
Returns
On success, 0 is returned; on error, -1.
Parameters
istatThe return code will be written to istat (this is a Fortran routine): either 0 (success) or -1 (failure).

◆ sussm()

subroutine blas_sparse::ussm::sussm ( integer  order,
integer  transt,
integer(kind=rsb_blas_idx_kind)  nrhs,
real(kind(1.e0))  alpha,
integer  t,
real(kind(1.e0)), dimension (:,:)  b,
integer(kind=rsb_blas_idx_kind)  ldb,
integer(kind=rsb_blas_ist_kind), intent(out)  istat 
)

Triangular solve, by a dense matrix (aka multi-vector). Either of $B \leftarrow \alpha T^{-1} B,$ $B \leftarrow \alpha T^{-T} B,$ $B \leftarrow \alpha T^{-H} B$, depending on the value of transT.

Parameters
orderlayour of the dense array.
transTTransposition operator for matrix T.
nrhsNumber of right hand side columns.
alphaValue for $ \alpha $.
TA valid triangular matrix handle.
bDense vector b.
ldbLeading dimension of b.
Returns
On success, 0 is returned; on error, -1.
Parameters
istatThe return code will be written to istat (this is a Fortran routine): either 0 (success) or -1 (failure).

◆ zussm()

subroutine blas_sparse::ussm::zussm ( integer  order,
integer  transt,
integer(kind=rsb_blas_idx_kind)  nrhs,
complex(kind(1.d0))  alpha,
integer  t,
complex(kind(1.d0)), dimension (:,:)  b,
integer(kind=rsb_blas_idx_kind)  ldb,
integer(kind=rsb_blas_ist_kind), intent(out)  istat 
)

Triangular solve, by a dense matrix (aka multi-vector). Either of $B \leftarrow \alpha T^{-1} B,$ $B \leftarrow \alpha T^{-T} B,$ $B \leftarrow \alpha T^{-H} B$, depending on the value of transT.

Parameters
orderlayour of the dense array.
transTTransposition operator for matrix T.
nrhsNumber of right hand side columns.
alphaValue for $ \alpha $.
TA valid triangular matrix handle.
bDense vector b.
ldbLeading dimension of b.
Returns
On success, 0 is returned; on error, -1.
Parameters
istatThe return code will be written to istat (this is a Fortran routine): either 0 (success) or -1 (failure).
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