ScaLAPACKFX
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Solves symmetric eigenvalue problem by the QR algorithm. More...
Private Member Functions | |
subroutine | scalafx_psyev_real (aa, desca, ww, zz, descz, jobz, uplo, ia, ja, iz, jz, work, info) |
Solves real eigenvalue problem. | |
subroutine | scalafx_psyev_dreal (aa, desca, ww, zz, descz, jobz, uplo, ia, ja, iz, jz, work, info) |
Solves real eigenvalue problem. | |
Solves symmetric eigenvalue problem by the QR algorithm.
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private |
Solves real eigenvalue problem.
aa | Matrix to diagonalize (A). |
desca | Descriptor of matrix A. |
ww | Eigenvalues on exit. |
zz | Eigenvectors on exit (Z). |
descz | Descriptor of the eigenvector matrix. |
jobz | Job type (default: "V") |
uplo | Upper or lower diagonal matrix (default: "L") |
ia | First row of the submatrix A (default: 1) |
ja | First column of the submatrix A (default: 1) |
iz | First row of the submatrix Z (default: 1) |
jz | First column of the submatrix Z (default: 1) |
work | Working array (if not specified, allocated automatically) |
info | Info flag. If not specified and SCALAPACK calls returns nozero, subroutine stops. |
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private |
Solves real eigenvalue problem.
aa | Matrix to diagonalize (A). |
desca | Descriptor of matrix A. |
ww | Eigenvalues on exit. |
zz | Eigenvectors on exit (Z). |
descz | Descriptor of the eigenvector matrix. |
jobz | Job type (default: "V") |
uplo | Upper or lower diagonal matrix (default: "L") |
ia | First row of the submatrix A (default: 1) |
ja | First column of the submatrix A (default: 1) |
iz | First row of the submatrix Z (default: 1) |
jz | First column of the submatrix Z (default: 1) |
work | Working array (if not specified, allocated automatically) |
info | Info flag. If not specified and SCALAPACK calls returns nozero, subroutine stops. |