Divide and Conquer Driver Routines for Generalized Eigenvalue Problems

• CALL LA_SYGVD / LA_HEGVD ( A, B, W, ITYPE=itype, JOBZ=jobz, &
                                       UPLO=uplo, INFO=info )
  Computes all the eigenvalues and, optionally, the eigenvectors of a real generalized symmetric-definite or complex Hermitian-definite eigenproblem. If eigenvectors are desired, it uses a divide and conquer algorithm.
• CALL LA_SPGVD / LA_HPGVD ( AP, BP, W, ITYPE=itype, UPLO=uplo, Z=z, &
                                       INFO=info )
  Computes all the eigenvalues and, optionally, the eigenvectors of a real/complex Hermitian generalized eigenproblem. The matrices are in packed storage. If eigenvectors are desired, it uses a divide and conquer algorithm.
• CALL LA_SBGVD / LA_HBGVD ( AB, BB, W, UPLO=uplo, Z=z, INFO=info )
  Computes all the eigenvalues and, optionally, all eigenvectors of a real generalized symmetric-definite / complex Hermitian banded eigenproblem. If eigenvectors are desired, it uses a divide and conquer algorithm.

  
  

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