LATDF: computes the contribution to the reciprocal Dif-estimate by solving for x in Z * x = b, where b is chosen such that the norm of x is as large as possible. It is assumed that LU decomposition of Z has been computed by CGETC2. On entry RHS = f holds the contribution from earlier solved sub-systems, and on return RHS = x. The factorization of Z returned by CGETC2 has the form Z = P * L * U * Q, where P and Q are permutation matrices. L is lower triangular with unit diagonal elements and U is upper triangular.
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| pure subroutine | clatdf (ijob, n, z, ldz, rhs, rdsum, rdscal, ipiv, jpiv) |
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| | la_clatdf |
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| pure subroutine | dlatdf (ijob, n, z, ldz, rhs, rdsum, rdscal, ipiv, jpiv) |
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| | la_dlatdf |
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| | la_qlatdf |
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| pure subroutine | slatdf (ijob, n, z, ldz, rhs, rdsum, rdscal, ipiv, jpiv) |
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| | la_slatdf |
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| | la_wlatdf |
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| pure subroutine | zlatdf (ijob, n, z, ldz, rhs, rdsum, rdscal, ipiv, jpiv) |
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| | la_zlatdf |
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LATDF: computes the contribution to the reciprocal Dif-estimate by solving for x in Z * x = b, where b is chosen such that the norm of x is as large as possible. It is assumed that LU decomposition of Z has been computed by CGETC2. On entry RHS = f holds the contribution from earlier solved sub-systems, and on return RHS = x. The factorization of Z returned by CGETC2 has the form Z = P * L * U * Q, where P and Q are permutation matrices. L is lower triangular with unit diagonal elements and U is upper triangular.
◆ clatdf()
| pure subroutine la_lapack::latdf::clatdf |
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integer(ilp), intent(in) | ijob, |
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integer(ilp), intent(in) | n, |
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complex(sp), dimension(ldz,*), intent(inout) | z, |
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integer(ilp), intent(in) | ldz, |
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complex(sp), dimension(*), intent(inout) | rhs, |
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real(sp), intent(inout) | rdsum, |
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real(sp), intent(inout) | rdscal, |
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integer(ilp), dimension(*), intent(in) | ipiv, |
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integer(ilp), dimension(*), intent(in) | jpiv ) |
◆ dlatdf()
| pure subroutine la_lapack::latdf::dlatdf |
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integer(ilp), intent(in) | ijob, |
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integer(ilp), intent(in) | n, |
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real(dp), dimension(ldz,*), intent(inout) | z, |
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integer(ilp), intent(in) | ldz, |
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real(dp), dimension(*), intent(inout) | rhs, |
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real(dp), intent(inout) | rdsum, |
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real(dp), intent(inout) | rdscal, |
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integer(ilp), dimension(*), intent(in) | ipiv, |
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integer(ilp), dimension(*), intent(in) | jpiv ) |
◆ la_clatdf()
| la_lapack::latdf::la_clatdf |
◆ la_dlatdf()
| la_lapack::latdf::la_dlatdf |
◆ la_qlatdf()
| la_lapack::latdf::la_qlatdf |
◆ la_slatdf()
| la_lapack::latdf::la_slatdf |
◆ la_wlatdf()
| la_lapack::latdf::la_wlatdf |
◆ la_zlatdf()
| la_lapack::latdf::la_zlatdf |
◆ slatdf()
| pure subroutine la_lapack::latdf::slatdf |
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integer(ilp), intent(in) | ijob, |
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integer(ilp), intent(in) | n, |
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real(sp), dimension(ldz,*), intent(inout) | z, |
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integer(ilp), intent(in) | ldz, |
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real(sp), dimension(*), intent(inout) | rhs, |
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real(sp), intent(inout) | rdsum, |
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real(sp), intent(inout) | rdscal, |
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integer(ilp), dimension(*), intent(in) | ipiv, |
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integer(ilp), dimension(*), intent(in) | jpiv ) |
◆ zlatdf()
| pure subroutine la_lapack::latdf::zlatdf |
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integer(ilp), intent(in) | ijob, |
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integer(ilp), intent(in) | n, |
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complex(dp), dimension(ldz,*), intent(inout) | z, |
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integer(ilp), intent(in) | ldz, |
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complex(dp), dimension(*), intent(inout) | rhs, |
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real(dp), intent(inout) | rdsum, |
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real(dp), intent(inout) | rdscal, |
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integer(ilp), dimension(*), intent(in) | ipiv, |
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integer(ilp), dimension(*), intent(in) | jpiv ) |
The documentation for this interface was generated from the following file:
