DM Object: Mesh 1 MPI processes
  type: plex
Mesh in 2 dimensions:
  0-cells: 25
  1-cells: 56
  2-cells: 32
Labels:
  celltype: 3 strata with value/size (1 (56), 3 (32), 0 (25))
  depth: 3 strata with value/size (0 (25), 1 (56), 2 (32))
  marker: 4 strata with value/size (4 (9), 1 (7), 2 (9), 3 (7))
  Face Sets: 4 strata with value/size (1 (6), 4 (6), 2 (6), 3 (6))
  markerBottom: 1 strata with value/size (1 (7))
  markerRight: 1 strata with value/size (1 (9))
  markerTop: 1 strata with value/size (1 (7))
  markerLeft: 1 strata with value/size (1 (9))
Integral of pressure: 0.
L_2 Error: [6.60367e-05, 0.0104876]
L_2 Residual: 0.00859623
Function appears to be linear
SNES Object: 1 MPI processes
  type: newtonls
  maximum iterations=50, maximum function evaluations=10000
  tolerances: relative=1e-08, absolute=1e-50, solution=1e-08
  total number of linear solver iterations=4
  total number of function evaluations=3
  norm schedule ALWAYS
  SNESLineSearch Object: 1 MPI processes
    type: bt
      interpolation: cubic
      alpha=1.000000e-04
    maxstep=1.000000e+08, minlambda=1.000000e-12
    tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08
    maximum iterations=40
  KSP Object: 1 MPI processes
    type: gmres
      restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
      happy breakdown tolerance 1e-30
    maximum iterations=10000, initial guess is zero
    tolerances:  relative=1e-12, absolute=1e-10, divergence=10000.
    left preconditioning
    using PRECONDITIONED norm type for convergence test
  PC Object: 1 MPI processes
    type: fieldsplit
      FieldSplit with Schur preconditioner, factorization FULL
      using Amat (not Pmat) as operator for blocks
      Preconditioner for the Schur complement formed from the exact Schur complement
      Split info:
      Split number 0 Defined by IS
      Split number 1 Defined by IS
      KSP solver for A00 block
        KSP Object: (fieldsplit_velocity_) 1 MPI processes
          type: gmres
            restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
            happy breakdown tolerance 1e-30
          maximum iterations=10000, initial guess is zero
          tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
          left preconditioning
          using PRECONDITIONED norm type for convergence test
        PC Object: (fieldsplit_velocity_) 1 MPI processes
          type: lu
            out-of-place factorization
            tolerance for zero pivot 2.22045e-14
            matrix ordering: nd
            factor fill ratio given 5., needed 1.77372
              Factored matrix follows:
                Mat Object: 1 MPI processes
                  type: seqaij
                  rows=126, cols=126
                  package used to perform factorization: petsc
                  total: nonzeros=3888, allocated nonzeros=3888
                  total number of mallocs used during MatSetValues calls=0
                    using I-node routines: found 69 nodes, limit used is 5
          linear system matrix followed by preconditioner matrix:
          Mat Object: 1 MPI processes
            type: seqaij
            rows=126, cols=126
            total: nonzeros=2192, allocated nonzeros=2192
            total number of mallocs used during MatSetValues calls=0
              using I-node routines: found 76 nodes, limit used is 5
          Mat Object: (fieldsplit_velocity_) 1 MPI processes
            type: seqaij
            rows=126, cols=126
            total: nonzeros=2192, allocated nonzeros=2192
            total number of mallocs used during MatSetValues calls=0
              using I-node routines: found 76 nodes, limit used is 5
      KSP solver for S = A11 - A10 inv(A00) A01 
        KSP Object: (fieldsplit_pressure_) 1 MPI processes
          type: gmres
            restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
            happy breakdown tolerance 1e-30
          maximum iterations=10000, initial guess is zero
          tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
          left preconditioning
          using PRECONDITIONED norm type for convergence test
        PC Object: (fieldsplit_pressure_) 1 MPI processes
          type: svd
            All singular values smaller than 1e-12 treated as zero
            Provided essential rank of the matrix 0 (all other eigenvalues are zeroed)
          linear system matrix followed by preconditioner matrix:
          Mat Object: (fieldsplit_pressure_) 1 MPI processes
            type: schurcomplement
            rows=25, cols=25
              has attached null space
              Schur complement A11 - A10 inv(A00) A01
              A11
                Mat Object: 1 MPI processes
                  type: seqaij
                  rows=25, cols=25
                  total: nonzeros=137, allocated nonzeros=137
                  total number of mallocs used during MatSetValues calls=0
                    has attached null space
                    not using I-node routines
              A10
                Mat Object: 1 MPI processes
                  type: seqaij
                  rows=25, cols=126
                  total: nonzeros=554, allocated nonzeros=554
                  total number of mallocs used during MatSetValues calls=0
                    not using I-node routines
              KSP of A00
                KSP Object: (fieldsplit_velocity_) 1 MPI processes
                  type: gmres
                    restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
                    happy breakdown tolerance 1e-30
                  maximum iterations=10000, initial guess is zero
                  tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
                  left preconditioning
                  using PRECONDITIONED norm type for convergence test
                PC Object: (fieldsplit_velocity_) 1 MPI processes
                  type: lu
                    out-of-place factorization
                    tolerance for zero pivot 2.22045e-14
                    matrix ordering: nd
                    factor fill ratio given 5., needed 1.77372
                      Factored matrix follows:
                        Mat Object: 1 MPI processes
                          type: seqaij
                          rows=126, cols=126
                          package used to perform factorization: petsc
                          total: nonzeros=3888, allocated nonzeros=3888
                          total number of mallocs used during MatSetValues calls=0
                            using I-node routines: found 69 nodes, limit used is 5
                  linear system matrix followed by preconditioner matrix:
                  Mat Object: 1 MPI processes
                    type: seqaij
                    rows=126, cols=126
                    total: nonzeros=2192, allocated nonzeros=2192
                    total number of mallocs used during MatSetValues calls=0
                      using I-node routines: found 76 nodes, limit used is 5
                  Mat Object: (fieldsplit_velocity_) 1 MPI processes
                    type: seqaij
                    rows=126, cols=126
                    total: nonzeros=2192, allocated nonzeros=2192
                    total number of mallocs used during MatSetValues calls=0
                      using I-node routines: found 76 nodes, limit used is 5
              A01
                Mat Object: 1 MPI processes
                  type: seqaij
                  rows=126, cols=25
                  total: nonzeros=554, allocated nonzeros=554
                  total number of mallocs used during MatSetValues calls=0
                    using I-node routines: found 76 nodes, limit used is 5
          Mat Object: 1 MPI processes
            type: seqaij
            rows=25, cols=25
            total: nonzeros=625, allocated nonzeros=625
            total number of mallocs used during MatSetValues calls=0
              using I-node routines: found 5 nodes, limit used is 5
    linear system matrix followed by preconditioner matrix:
    Mat Object: 1 MPI processes
      type: seqaij
      rows=151, cols=151
      total: nonzeros=3437, allocated nonzeros=3437
      total number of mallocs used during MatSetValues calls=0
        has attached null space
        using I-node routines: found 80 nodes, limit used is 5
    Mat Object: 1 MPI processes
      type: seqaij
      rows=151, cols=151
      total: nonzeros=3437, allocated nonzeros=3437
      total number of mallocs used during MatSetValues calls=0
        using I-node routines: found 80 nodes, limit used is 5
Number of SNES iterations=4
L_2 Error: 0.00627 [7.89e-05, 0.00627]
Integral of pressure: 0.
Solution
Vec Object: Solution 1 MPI processes
  type: seq
-0.189425
-0.00801286
-0.102666
0.206952
0.0115475
0.00374604
-2.28144e-05
-0.00230151
-0.0056781
-0.006058
-0.0067539
0.205556
0.00811905
0.101796
-0.204892
-0.00702902
-0.194624
-0.00504859
0.00378333
-0.135813
0.0082144
-0.13895
0.00501315
0.00389734
0.140214
0.00809332
0.143853
-4.14293e-05
0.00544861
0.000830451
-0.00571531
-0.00166887
-0.07432
-0.00330064
-0.00402486
0.0326906
-0.00426669
0.141325
-8.30555e-06
-0.00566613
-0.00773167
-0.0046417
0.0518119
0.00328052
-0.00397936
-0.0391094
-0.00429204
-0.147497
0.00466544
-0.0505139
0.00568315
-0.00158318
0.0709222
0.00720283
0.198277
-0.00651283
0.00203578
-0.00293891
0.0066641
-0.00379903
0.00357102
0.00293099
0.00661649
0.00153944
0.00860372
0.00261176
0.00489966
-0.00587346
0.000797925
-0.00318445
0.00104341
-0.00279074
0.00490534
-0.0016787
-0.00425583
-0.000893423
-0.00551901
-0.00176374
-0.00520181
-0.00473977
-0.00320176
-0.00616069
-0.00169866
-0.00428495
-0.00213581
0.00167869
-0.00421076
0.00217623
-0.00228468
0.00428823
-0.00217052
0.00475461
-0.00314854
0.00255699
-0.00417497
0.00178469
-0.00522306
0.00768483
0.000383859
0.00652706
0.00200859
0.00592549
0.00083151
-0.00396224
-0.00835111
-0.0076458
0.000441798
-0.00165403
0.0085966
0.0103443
0.00419026
0.00315907
0.000999914
0.00386233
0.00356017
0.00447518
0.0105006
-8.51184e-06
0.00942302
2.94357e-05
0.00116712
-0.00739898
-0.000863766
-0.00308254
-0.00213516
-0.00254151
-0.00414259
-0.00217579
-0.00228315
-0.00232911
-0.00554699
6.33918e-07
-0.00599244
1.45631e-05
-0.00449301
-0.00676361
-0.00240735
0.00615983
-0.00174997
0.000906275
-0.0055225
-0.00552637
-0.00224685
0.0023553
0.00666991
0.00741551
-0.000905974
0.00304741
-0.00216657
0.00834423
0.00426247
