
Diagonal Eigenproblem, n=20

Matrix Object: 1 MPI processes
  type: seqaij
row 0: (0, 1) 
row 1: (1, 2) 
row 2: (2, 3) 
row 3: (3, 4) 
row 4: (4, 5) 
row 5: (5, 6) 
row 6: (6, 7) 
row 7: (7, 8) 
row 8: (8, 9) 
row 9: (9, 10) 
row 10: (10, 11) 
row 11: (11, 12) 
row 12: (12, 13) 
row 13: (13, 14) 
row 14: (14, 15) 
row 15: (15, 16) 
row 16: (16, 17) 
row 17: (17, 18) 
row 18: (18, 19) 
row 19: (19, 20) 
 Type set to krylovschur
 Problem type before changing = 0 ... changed to 1. hermitian
 Extraction before changing = 0 ... changed to 2
 Balance: 2, its=8, cutoff=1e-06
 Which = 7, target = 4.8
 Dimensions: nev=4, ncv=0, mpd=0
 Tolerance = 0.00022, max_its = 200
 Convergence test = 1
ST Object: 1 MPI processes
  type not yet set
  shift: 0
  number of matrices: 1
  KSP Object:  (st_)   1 MPI processes
    type not yet set
    maximum iterations=10000, initial guess is zero
    tolerances:  relative=1e-08, absolute=1e-50, divergence=10000
    left preconditioning
    using DEFAULT norm type for convergence test
  PC Object:  (st_)   1 MPI processes
    type not yet set
IP Object: 1 MPI processes
  type not yet set
  orthogonalization method: classical Gram-Schmidt
  orthogonalization refinement: if needed (eta: 0.7071)
DS Object: 1 MPI processes
  type not yet set
 Finished - converged reason = 2, its=2
 All requested eigenvalues computed up to the required tolerance:
     5.00000, 4.00000, 6.00000, 3.00000

