diff --git a/src/core/linear_solver/src/method/4C_linear_solver_method_input.cpp b/src/core/linear_solver/src/method/4C_linear_solver_method_input.cpp
index 0b0df2a2a67..6cfb3d55751 100644
--- a/src/core/linear_solver/src/method/4C_linear_solver_method_input.cpp
+++ b/src/core/linear_solver/src/method/4C_linear_solver_method_input.cpp
@@ -94,11 +94,6 @@ namespace Core::LinearSolver
                     "be declared stalled and thus force recomputation of the preconditioner.",
                 .default_value = 50}),
 
-        parameter<int>(
-            "AZSUB", {.description = "The maximum size of the Krylov subspace used with \"GMRES\" "
-                                     "before\n a restart is performed.",
-                         .default_value = 50}),
-
         parameter<bool>("THROW_IF_UNCONVERGED",
             {.description =
                     "If set to true, the iterative linear solver "
diff --git a/src/core/linear_solver/src/method/4C_linear_solver_method_linalg.cpp b/src/core/linear_solver/src/method/4C_linear_solver_method_linalg.cpp
index 4280aab4f9a..ea0136ede5e 100644
--- a/src/core/linear_solver/src/method/4C_linear_solver_method_linalg.cpp
+++ b/src/core/linear_solver/src/method/4C_linear_solver_method_linalg.cpp
@@ -350,7 +350,6 @@ Teuchos::ParameterList translate_four_c_to_belos(const Teuchos::ParameterList& i
         break;
       case Core::LinearSolver::IterativeSolverType::gmres:
         beloslist.set("Solver Type", "GMRES");
-        beloslist.set("Num Blocks", inparams.get<int>("AZSUB"));
         break;
       default:
       {
diff --git a/tests/input_files/consinter3D_tsi_hex8_tet4.4C.yaml b/tests/input_files/consinter3D_tsi_hex8_tet4.4C.yaml
index 34406cd3d09..64c42a6739e 100644
--- a/tests/input_files/consinter3D_tsi_hex8_tet4.4C.yaml
+++ b/tests/input_files/consinter3D_tsi_hex8_tet4.4C.yaml
@@ -37,7 +37,6 @@ SOLVER 2:
   SOLVER: "Belos"
   AZPREC: "Teko"
   AZTOL: 1e-10
-  AZSUB: 300
   THROW_IF_UNCONVERGED: false
   TEKO_XML_FILE: "xml/block_preconditioner/thermo_solid.xml"
   NAME: "Thermo_Structure_Interaction_Solver"
diff --git a/tests/input_files/constr2D_MPC_angle.4C.yaml b/tests/input_files/constr2D_MPC_angle.4C.yaml
index baf8310c1c5..f8f3879d457 100644
--- a/tests/input_files/constr2D_MPC_angle.4C.yaml
+++ b/tests/input_files/constr2D_MPC_angle.4C.yaml
@@ -13,7 +13,6 @@ PROBLEM TYPE:
 SOLVER 1:
   SOLVER: "UMFPACK"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
-  AZSUB: 300
 STRUCTURAL DYNAMIC:
   INT_STRATEGY: Old
   RESEVERYERGY: 1
diff --git a/tests/input_files/constr2D_MPC_dist.4C.yaml b/tests/input_files/constr2D_MPC_dist.4C.yaml
index 75fa80ee80c..69962a5a19b 100644
--- a/tests/input_files/constr2D_MPC_dist.4C.yaml
+++ b/tests/input_files/constr2D_MPC_dist.4C.yaml
@@ -22,7 +22,6 @@ STRUCTURAL DYNAMIC:
 SOLVER 1:
   SOLVER: "UMFPACK"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
-  AZSUB: 300
   NAME: "Structure_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/constr3D_NormComp_STI.4C.yaml b/tests/input_files/constr3D_NormComp_STI.4C.yaml
index bfe2fb7ba61..10b21bbf3ea 100644
--- a/tests/input_files/constr3D_NormComp_STI.4C.yaml
+++ b/tests/input_files/constr3D_NormComp_STI.4C.yaml
@@ -23,7 +23,6 @@ STRUCTURAL DYNAMIC:
 SOLVER 1:
   SOLVER: "UMFPACK"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
-  AZSUB: 300
 MATERIALS:
   - MAT: 1
     MAT_VISCONEOHOOKE:
diff --git a/tests/input_files/elch_2D_binaryNewman_twoEqu_divi_implParams_porousMedium.4C.yaml b/tests/input_files/elch_2D_binaryNewman_twoEqu_divi_implParams_porousMedium.4C.yaml
index 871c9639ab1..3a9084888ba 100644
--- a/tests/input_files/elch_2D_binaryNewman_twoEqu_divi_implParams_porousMedium.4C.yaml
+++ b/tests/input_files/elch_2D_binaryNewman_twoEqu_divi_implParams_porousMedium.4C.yaml
@@ -45,7 +45,6 @@ SOLVER 1:
   AZTOL: 1e-10
   AZOUTPUT: 1000
   AZREUSE: 5
-  AZSUB: 100
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Sca_Tra_Solver"
 MATERIALS:
diff --git a/tests/input_files/elch_RCE_rotsymm_pbc.4C.yaml b/tests/input_files/elch_RCE_rotsymm_pbc.4C.yaml
index f3f35c090a7..3bb1e0ebb03 100644
--- a/tests/input_files/elch_RCE_rotsymm_pbc.4C.yaml
+++ b/tests/input_files/elch_RCE_rotsymm_pbc.4C.yaml
@@ -47,7 +47,6 @@ SOLVER 2:
   AZITER: 100
   AZTOL: 1e-10
   AZOUTPUT: 20
-  AZSUB: 40
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/elch_gaussian_hill_pbc_NP_genalpha_calcInitDt_calcInitPot.4C.yaml b/tests/input_files/elch_gaussian_hill_pbc_NP_genalpha_calcInitDt_calcInitPot.4C.yaml
index 2b7eb35bb9d..23124aa348a 100644
--- a/tests/input_files/elch_gaussian_hill_pbc_NP_genalpha_calcInitDt_calcInitPot.4C.yaml
+++ b/tests/input_files/elch_gaussian_hill_pbc_NP_genalpha_calcInitDt_calcInitPot.4C.yaml
@@ -38,7 +38,6 @@ SOLVER 1:
   AZITER: 500
   AZTOL: 1e-10
   AZREUSE: 20
-  AZSUB: 200
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/elch_gaussian_hill_pbc_Newman_twoEqu_genalpha_calcInitDt_calcInitPot.4C.yaml b/tests/input_files/elch_gaussian_hill_pbc_Newman_twoEqu_genalpha_calcInitDt_calcInitPot.4C.yaml
index 19555480141..61836968369 100644
--- a/tests/input_files/elch_gaussian_hill_pbc_Newman_twoEqu_genalpha_calcInitDt_calcInitPot.4C.yaml
+++ b/tests/input_files/elch_gaussian_hill_pbc_Newman_twoEqu_genalpha_calcInitDt_calcInitPot.4C.yaml
@@ -44,7 +44,6 @@ SOLVER 1:
   AZITER: 500
   AZTOL: 1e-10
   AZREUSE: 20
-  AZSUB: 200
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/elch_gaussian_hill_pbc_genalpha.4C.yaml b/tests/input_files/elch_gaussian_hill_pbc_genalpha.4C.yaml
index 3d500b383fa..92730b29e00 100644
--- a/tests/input_files/elch_gaussian_hill_pbc_genalpha.4C.yaml
+++ b/tests/input_files/elch_gaussian_hill_pbc_genalpha.4C.yaml
@@ -32,7 +32,6 @@ SOLVER 1:
   AZITER: 500
   AZTOL: 1e-10
   AZREUSE: 20
-  AZSUB: 200
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/elch_natconv.4C.yaml b/tests/input_files/elch_natconv.4C.yaml
index eb0bc014674..3e03e9fd4c0 100644
--- a/tests/input_files/elch_natconv.4C.yaml
+++ b/tests/input_files/elch_natconv.4C.yaml
@@ -55,7 +55,6 @@ SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-10
-  AZSUB: 25
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/elch_natconv_enc_pde_elim.4C.yaml b/tests/input_files/elch_natconv_enc_pde_elim.4C.yaml
index df35bdfdffc..fc0fb2b50b0 100644
--- a/tests/input_files/elch_natconv_enc_pde_elim.4C.yaml
+++ b/tests/input_files/elch_natconv_enc_pde_elim.4C.yaml
@@ -58,13 +58,11 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-10
-  AZSUB: 25
   NAME: "Sca_Tra_Solver"
 SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-10
-  AZSUB: 25
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/elch_natconv_new_ost.4C.yaml b/tests/input_files/elch_natconv_new_ost.4C.yaml
index 6edacf68058..8548ed8e22b 100644
--- a/tests/input_files/elch_natconv_new_ost.4C.yaml
+++ b/tests/input_files/elch_natconv_new_ost.4C.yaml
@@ -51,7 +51,6 @@ SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-10
-  AZSUB: 25
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/elch_pper_butlervolmer.4C.yaml b/tests/input_files/elch_pper_butlervolmer.4C.yaml
index d9d8decf932..5f5140b5832 100644
--- a/tests/input_files/elch_pper_butlervolmer.4C.yaml
+++ b/tests/input_files/elch_pper_butlervolmer.4C.yaml
@@ -52,7 +52,6 @@ SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-10
-  AZSUB: 25
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/elch_pper_secondary_current_distribution.4C.yaml b/tests/input_files/elch_pper_secondary_current_distribution.4C.yaml
index dc2d9041cf9..13bad816aff 100644
--- a/tests/input_files/elch_pper_secondary_current_distribution.4C.yaml
+++ b/tests/input_files/elch_pper_secondary_current_distribution.4C.yaml
@@ -38,7 +38,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-10
-  AZSUB: 25
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f2_drivencavity32x32_Re1000_stat.4C.yaml b/tests/input_files/f2_drivencavity32x32_Re1000_stat.4C.yaml
index 98f5bdcc851..02904dc3762 100644
--- a/tests/input_files/f2_drivencavity32x32_Re1000_stat.4C.yaml
+++ b/tests/input_files/f2_drivencavity32x32_Re1000_stat.4C.yaml
@@ -37,7 +37,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-07
-  AZSUB: 25
   THROW_IF_UNCONVERGED: false
   NAME: "Fluid_Solver"
 DESIGN POINT DIRICH CONDITIONS:
diff --git a/tests/input_files/f2_kimmoin25x25_oseen_instat.4C.yaml b/tests/input_files/f2_kimmoin25x25_oseen_instat.4C.yaml
index c0ce0ca646a..92a3449a81d 100644
--- a/tests/input_files/f2_kimmoin25x25_oseen_instat.4C.yaml
+++ b/tests/input_files/f2_kimmoin25x25_oseen_instat.4C.yaml
@@ -30,7 +30,6 @@ SOLVER 1:
   AZTOL: 1e-14
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f3_beltrami_4x4x4_hdg_lagrange.4C.yaml b/tests/input_files/f3_beltrami_4x4x4_hdg_lagrange.4C.yaml
index f29adf3d681..4791b241b2b 100644
--- a/tests/input_files/f3_beltrami_4x4x4_hdg_lagrange.4C.yaml
+++ b/tests/input_files/f3_beltrami_4x4x4_hdg_lagrange.4C.yaml
@@ -32,7 +32,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 2e-05
-  AZSUB: 100
 MATERIALS:
   - MAT: 1
     MAT_fluid:
diff --git a/tests/input_files/f3_beltrami_4x4x4_hdg_legendre.4C.yaml b/tests/input_files/f3_beltrami_4x4x4_hdg_legendre.4C.yaml
index c9eb31bb780..c70657b4dcd 100644
--- a/tests/input_files/f3_beltrami_4x4x4_hdg_legendre.4C.yaml
+++ b/tests/input_files/f3_beltrami_4x4x4_hdg_legendre.4C.yaml
@@ -32,7 +32,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 2e-05
-  AZSUB: 100
 MATERIALS:
   - MAT: 1
     MAT_fluid:
diff --git a/tests/input_files/f3_beltrami_8x8_meshtying_ale.4C.yaml b/tests/input_files/f3_beltrami_8x8_meshtying_ale.4C.yaml
index 889daf7c283..0026458b150 100644
--- a/tests/input_files/f3_beltrami_8x8_meshtying_ale.4C.yaml
+++ b/tests/input_files/f3_beltrami_8x8_meshtying_ale.4C.yaml
@@ -58,7 +58,6 @@ SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 1000
 MATERIALS:
   - MAT: 1
     MAT_fluid:
diff --git a/tests/input_files/f3_beltrami_8x8_meshtying_ale_euler.4C.yaml b/tests/input_files/f3_beltrami_8x8_meshtying_ale_euler.4C.yaml
index 9a6cce81690..6a6df8fe58f 100644
--- a/tests/input_files/f3_beltrami_8x8_meshtying_ale_euler.4C.yaml
+++ b/tests/input_files/f3_beltrami_8x8_meshtying_ale_euler.4C.yaml
@@ -58,7 +58,6 @@ SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 1000
 MATERIALS:
   - MAT: 1
     MAT_fluid:
diff --git a/tests/input_files/f3_beltrami_8x8_meshtying_bmat_merged.4C.yaml b/tests/input_files/f3_beltrami_8x8_meshtying_bmat_merged.4C.yaml
index e194450a459..99eca4e592b 100644
--- a/tests/input_files/f3_beltrami_8x8_meshtying_bmat_merged.4C.yaml
+++ b/tests/input_files/f3_beltrami_8x8_meshtying_bmat_merged.4C.yaml
@@ -47,7 +47,6 @@ SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 1000
 MATERIALS:
   - MAT: 1
     MAT_fluid:
diff --git a/tests/input_files/f3_beltrami_8x8_meshtying_smat.4C.yaml b/tests/input_files/f3_beltrami_8x8_meshtying_smat.4C.yaml
index da935714d91..8e2445e8fdf 100644
--- a/tests/input_files/f3_beltrami_8x8_meshtying_smat.4C.yaml
+++ b/tests/input_files/f3_beltrami_8x8_meshtying_smat.4C.yaml
@@ -46,7 +46,6 @@ SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 1000
 MATERIALS:
   - MAT: 1
     MAT_fluid:
diff --git a/tests/input_files/f3_beltrami_8x8_meshtying_smat_velcoupled.4C.yaml b/tests/input_files/f3_beltrami_8x8_meshtying_smat_velcoupled.4C.yaml
index c2b0698dd30..610c5ab03d8 100644
--- a/tests/input_files/f3_beltrami_8x8_meshtying_smat_velcoupled.4C.yaml
+++ b/tests/input_files/f3_beltrami_8x8_meshtying_smat_velcoupled.4C.yaml
@@ -48,7 +48,6 @@ SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 1000
 MATERIALS:
   - MAT: 1
     MAT_fluid:
diff --git a/tests/input_files/f3_beltrami_sphere_hdg_legendre.4C.yaml b/tests/input_files/f3_beltrami_sphere_hdg_legendre.4C.yaml
index 29330f108ce..b3c695c59d0 100644
--- a/tests/input_files/f3_beltrami_sphere_hdg_legendre.4C.yaml
+++ b/tests/input_files/f3_beltrami_sphere_hdg_legendre.4C.yaml
@@ -32,7 +32,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 2e-05
-  AZSUB: 100
 MATERIALS:
   - MAT: 1
     MAT_fluid:
diff --git a/tests/input_files/f3_beltrami_tet10_hdg.4C.yaml b/tests/input_files/f3_beltrami_tet10_hdg.4C.yaml
index cabf28e6a79..c246196a9c0 100644
--- a/tests/input_files/f3_beltrami_tet10_hdg.4C.yaml
+++ b/tests/input_files/f3_beltrami_tet10_hdg.4C.yaml
@@ -33,7 +33,6 @@ SOLVER 1:
   AZITER: 200
   AZTOL: 0.001
   AZOUTPUT: 1
-  AZSUB: 100
   THROW_IF_UNCONVERGED: false
   NAME: "Fluid_Solver"
 DESIGN SURF DIRICH CONDITIONS:
diff --git a/tests/input_files/f3_bfs_xwall_8x8x8_bl1_turbinflow.4C.yaml b/tests/input_files/f3_bfs_xwall_8x8x8_bl1_turbinflow.4C.yaml
index fb9dc9238ec..0accca4144d 100644
--- a/tests/input_files/f3_bfs_xwall_8x8x8_bl1_turbinflow.4C.yaml
+++ b/tests/input_files/f3_bfs_xwall_8x8x8_bl1_turbinflow.4C.yaml
@@ -52,7 +52,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "f3_fbs_xfluid_ifpack1.xml"
   AZTOL: 1e-12
   AZREUSE: 10
-  AZSUB: 40
   NAME: "Fluid_Solver"
 SOLVER 9:
   SOLVER: "Belos"
@@ -60,7 +59,6 @@ SOLVER 9:
   IFPACK_XML_FILE: "f3_fbs_xfluid_ifpack2.xml"
   AZTOL: 1e-12
   AZREUSE: 5
-  AZSUB: 40
   NAME: "Projection_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f3_cha_xwall_6x8x6.4C.yaml b/tests/input_files/f3_cha_xwall_6x8x6.4C.yaml
index 6396c9f49e5..3847adf1b38 100644
--- a/tests/input_files/f3_cha_xwall_6x8x6.4C.yaml
+++ b/tests/input_files/f3_cha_xwall_6x8x6.4C.yaml
@@ -40,7 +40,6 @@ SOLVER 1:
   AZITER: 2000
   AZTOL: 1e-18
   AZREUSE: 8
-  AZSUB: 120
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f3_cha_xwall_6x8x6_dirich.4C.yaml b/tests/input_files/f3_cha_xwall_6x8x6_dirich.4C.yaml
index 19125302fb7..1aba084f121 100644
--- a/tests/input_files/f3_cha_xwall_6x8x6_dirich.4C.yaml
+++ b/tests/input_files/f3_cha_xwall_6x8x6_dirich.4C.yaml
@@ -48,7 +48,6 @@ SOLVER 1:
   AZITER: 2000
   AZTOL: 1e-12
   AZREUSE: 8
-  AZSUB: 40
   NAME: "Fluid_Solver"
 SOLVER 9:
   SOLVER: "Belos"
@@ -56,7 +55,6 @@ SOLVER 9:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-12
   AZREUSE: 5
-  AZSUB: 40
   NAME: "Projection_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f3_cha_xwall_6x8x6_grad_ol2p_bs_ramp.4C.yaml b/tests/input_files/f3_cha_xwall_6x8x6_grad_ol2p_bs_ramp.4C.yaml
index 53e4ee1e9df..e0e8065a074 100644
--- a/tests/input_files/f3_cha_xwall_6x8x6_grad_ol2p_bs_ramp.4C.yaml
+++ b/tests/input_files/f3_cha_xwall_6x8x6_grad_ol2p_bs_ramp.4C.yaml
@@ -37,7 +37,6 @@ SOLVER 1:
   AZITER: 2000
   AZTOL: 1e-12
   AZREUSE: 8
-  AZSUB: 40
   NAME: "Fluid_Solver"
 SOLVER 9:
   SOLVER: "Belos"
@@ -45,7 +44,6 @@ SOLVER 9:
   IFPACK_XML_FILE: "f3_cha_xwall_ifpack.xml"
   AZTOL: 1e-12
   AZREUSE: 5
-  AZSUB: 40
   NAME: "Projection_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f3_cha_xwall_6x8x6_gradres_p_bs_ramp_ale.4C.yaml b/tests/input_files/f3_cha_xwall_6x8x6_gradres_p_bs_ramp_ale.4C.yaml
index 92f863b5b0b..05bcb2580ef 100644
--- a/tests/input_files/f3_cha_xwall_6x8x6_gradres_p_bs_ramp_ale.4C.yaml
+++ b/tests/input_files/f3_cha_xwall_6x8x6_gradres_p_bs_ramp_ale.4C.yaml
@@ -45,7 +45,6 @@ SOLVER 1:
   AZITER: 2000
   AZTOL: 1e-12
   AZREUSE: 8
-  AZSUB: 40
   NAME: "Fluid_Solver"
 SOLVER 9:
   SOLVER: "Belos"
@@ -53,7 +52,6 @@ SOLVER 9:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-12
   AZREUSE: 5
-  AZSUB: 40
   NAME: "Projection_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f3_channel_meshtying_DCmaster.4C.yaml b/tests/input_files/f3_channel_meshtying_DCmaster.4C.yaml
index 60de2da58fd..e219667f98e 100644
--- a/tests/input_files/f3_channel_meshtying_DCmaster.4C.yaml
+++ b/tests/input_files/f3_channel_meshtying_DCmaster.4C.yaml
@@ -42,7 +42,6 @@ SOLVER 1:
   AZTOL: 1e-09
   AZOUTPUT: 50
   AZREUSE: 5
-  AZSUB: 100
   NAME: "Meshtying_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f3_drivencavity_stat_recongradL2.4C.yaml b/tests/input_files/f3_drivencavity_stat_recongradL2.4C.yaml
index 68752eb46b5..aa8f4fc511f 100644
--- a/tests/input_files/f3_drivencavity_stat_recongradL2.4C.yaml
+++ b/tests/input_files/f3_drivencavity_stat_recongradL2.4C.yaml
@@ -40,7 +40,6 @@ SOLVER 1:
   AZITER: 1500
   AZTOL: 1e-17
   AZOUTPUT: 50
-  AZSUB: 100
   NAME: "Fluid_Solver"
 SOLVER 2:
   SOLVER: "UMFPACK"
diff --git a/tests/input_files/f3_kimmoin_stat_24x24x1_wedge15_pseudo2D.4C.yaml b/tests/input_files/f3_kimmoin_stat_24x24x1_wedge15_pseudo2D.4C.yaml
index 97e043f671b..0757b991e5d 100644
--- a/tests/input_files/f3_kimmoin_stat_24x24x1_wedge15_pseudo2D.4C.yaml
+++ b/tests/input_files/f3_kimmoin_stat_24x24x1_wedge15_pseudo2D.4C.yaml
@@ -33,7 +33,6 @@ SOLVER 1:
   AZTOL: 1e-13
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/f3_nurbs27_AfGenAlpha.4C.yaml b/tests/input_files/f3_nurbs27_AfGenAlpha.4C.yaml
index f91fb484903..4741ed6957d 100644
--- a/tests/input_files/f3_nurbs27_AfGenAlpha.4C.yaml
+++ b/tests/input_files/f3_nurbs27_AfGenAlpha.4C.yaml
@@ -17,7 +17,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-07
   AZREUSE: 5
-  AZSUB: 100
   NAME: "Fluid_Solver"
 PROBLEM TYPE:
   PROBLEMTYPE: "Fluid"
diff --git a/tests/input_files/f3_periodic_hill_w_forcing_24x12x12.4C.yaml b/tests/input_files/f3_periodic_hill_w_forcing_24x12x12.4C.yaml
index 502a909311f..070886b0fec 100644
--- a/tests/input_files/f3_periodic_hill_w_forcing_24x12x12.4C.yaml
+++ b/tests/input_files/f3_periodic_hill_w_forcing_24x12x12.4C.yaml
@@ -37,7 +37,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-20
   AZREUSE: 8
-  AZSUB: 40
   THROW_IF_UNCONVERGED: false
   NAME: "Fluid_Solver"
 MATERIALS:
diff --git a/tests/input_files/f3_turbinflow_doublechan.4C.yaml b/tests/input_files/f3_turbinflow_doublechan.4C.yaml
index 8f63d553973..9472d3d9339 100644
--- a/tests/input_files/f3_turbinflow_doublechan.4C.yaml
+++ b/tests/input_files/f3_turbinflow_doublechan.4C.yaml
@@ -44,7 +44,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 0.0001
   AZREUSE: 5
-  AZSUB: 40
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/fsi_dc3D_part_ait_ga_ost_xwall.4C.yaml b/tests/input_files/fsi_dc3D_part_ait_ga_ost_xwall.4C.yaml
index f4915408f50..b2f33b26e88 100644
--- a/tests/input_files/fsi_dc3D_part_ait_ga_ost_xwall.4C.yaml
+++ b/tests/input_files/fsi_dc3D_part_ait_ga_ost_xwall.4C.yaml
@@ -56,7 +56,6 @@ SOLVER 9:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-12
   AZREUSE: 5
-  AZSUB: 40
   NAME: "Projection_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/fsi_ow3D_mtr_drt.4C.yaml b/tests/input_files/fsi_ow3D_mtr_drt.4C.yaml
index f07f0aeaa69..823bb0cd4f0 100644
--- a/tests/input_files/fsi_ow3D_mtr_drt.4C.yaml
+++ b/tests/input_files/fsi_ow3D_mtr_drt.4C.yaml
@@ -32,15 +32,12 @@ STRUCT NOX/Printing:
   Outer Iteration StatusTest: false
 SOLVER 1:
   SOLVER: "UMFPACK"
-  AZSUB: 300
   NAME: "Ale_Solver"
 SOLVER 2:
   SOLVER: "UMFPACK"
-  AZSUB: 300
   NAME: "Structure_Solver"
 SOLVER 3:
   SOLVER: "UMFPACK"
-  AZSUB: 300
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/homogenized-constrained-mixture-cyl-aniso-impl-nofibdir.4C.yaml b/tests/input_files/homogenized-constrained-mixture-cyl-aniso-impl-nofibdir.4C.yaml
index 940e9d5d3b3..c436c06e8f3 100644
--- a/tests/input_files/homogenized-constrained-mixture-cyl-aniso-impl-nofibdir.4C.yaml
+++ b/tests/input_files/homogenized-constrained-mixture-cyl-aniso-impl-nofibdir.4C.yaml
@@ -25,7 +25,6 @@ STRUCTURAL DYNAMIC:
   LINEAR_SOLVER: 1
 SOLVER 1:
   SOLVER: "UMFPACK"
-  AZSUB: 5000
 MATERIALS:
   - MAT: 1
     MAT_GrowthRemodel_ElastHyper:
diff --git a/tests/input_files/levelset_gaussian_hill_pbc.4C.yaml b/tests/input_files/levelset_gaussian_hill_pbc.4C.yaml
index 59a7f80b8d0..c58fc21607b 100644
--- a/tests/input_files/levelset_gaussian_hill_pbc.4C.yaml
+++ b/tests/input_files/levelset_gaussian_hill_pbc.4C.yaml
@@ -34,7 +34,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 40
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/locsys2D.4C.yaml b/tests/input_files/locsys2D.4C.yaml
index 3e8f36092ed..99dacc6dbce 100644
--- a/tests/input_files/locsys2D.4C.yaml
+++ b/tests/input_files/locsys2D.4C.yaml
@@ -30,7 +30,6 @@ SOLVER 1:
   AZSOLVE: "CG"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZCONV: "AZ_noscaled"
-  AZSUB: 40
   NAME: "Structure_Solver"
 DESIGN POINT DIRICH CONDITIONS:
   - E: 1
diff --git a/tests/input_files/orthopressure_pseudo_solidw6.4C.yaml b/tests/input_files/orthopressure_pseudo_solidw6.4C.yaml
index 56e9b893999..53c55ad6454 100644
--- a/tests/input_files/orthopressure_pseudo_solidw6.4C.yaml
+++ b/tests/input_files/orthopressure_pseudo_solidw6.4C.yaml
@@ -45,7 +45,6 @@ SOLVER 1:
   SOLVER: "Belos"
   AZPREC: "MueLu"
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 DESIGN SURF NEUMANN CONDITIONS:
diff --git a/tests/input_files/orthopressure_solidh8.4C.yaml b/tests/input_files/orthopressure_solidh8.4C.yaml
index aa9f98a6f7b..475c80f925b 100644
--- a/tests/input_files/orthopressure_solidh8.4C.yaml
+++ b/tests/input_files/orthopressure_solidh8.4C.yaml
@@ -44,7 +44,6 @@ SOLVER 1:
   SOLVER: "Belos"
   AZPREC: "MueLu"
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 DESIGN SURF NEUMANN CONDITIONS:
diff --git a/tests/input_files/orthopressure_solidh8_eas.4C.yaml b/tests/input_files/orthopressure_solidh8_eas.4C.yaml
index da41e2bbed6..274c972a708 100644
--- a/tests/input_files/orthopressure_solidh8_eas.4C.yaml
+++ b/tests/input_files/orthopressure_solidh8_eas.4C.yaml
@@ -44,7 +44,6 @@ SOLVER 1:
   SOLVER: "Belos"
   AZPREC: "MueLu"
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 DESIGN SURF NEUMANN CONDITIONS:
diff --git a/tests/input_files/poro_2D_scatra_ecm_reaction.4C.yaml b/tests/input_files/poro_2D_scatra_ecm_reaction.4C.yaml
index 877159264f5..32890d30bb4 100644
--- a/tests/input_files/poro_2D_scatra_ecm_reaction.4C.yaml
+++ b/tests/input_files/poro_2D_scatra_ecm_reaction.4C.yaml
@@ -80,7 +80,6 @@ SOLVER 4:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 40
   NAME: "Sca_Tra_Solver"
 CLONING MATERIAL MAP:
   - SRC_FIELD: "structure"
diff --git a/tests/input_files/poro_3D_scatra_mono_hex8.4C.yaml b/tests/input_files/poro_3D_scatra_mono_hex8.4C.yaml
index 6ccc0724c93..02107d7288e 100644
--- a/tests/input_files/poro_3D_scatra_mono_hex8.4C.yaml
+++ b/tests/input_files/poro_3D_scatra_mono_hex8.4C.yaml
@@ -69,7 +69,6 @@ SOLVER 4:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 40
   NAME: "Sca_Tra_Solver"
 CLONING MATERIAL MAP:
   - SRC_FIELD: "structure"
diff --git a/tests/input_files/poro_3D_scatra_part_hex8.4C.yaml b/tests/input_files/poro_3D_scatra_part_hex8.4C.yaml
index 3c66a2a8501..21c15a82ec5 100644
--- a/tests/input_files/poro_3D_scatra_part_hex8.4C.yaml
+++ b/tests/input_files/poro_3D_scatra_part_hex8.4C.yaml
@@ -65,7 +65,6 @@ SOLVER 4:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 40
   NAME: "Sca_Tra_Solver"
 CLONING MATERIAL MAP:
   - SRC_FIELD: "structure"
diff --git a/tests/input_files/porofluid_pressure_based_2D_quad4.4C.yaml b/tests/input_files/porofluid_pressure_based_2D_quad4.4C.yaml
index e47c7dee05e..9732681ac35 100644
--- a/tests/input_files/porofluid_pressure_based_2D_quad4.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_2D_quad4.4C.yaml
@@ -40,7 +40,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_2D_quad4_4_fluids_1_volfrac.4C.yaml b/tests/input_files/porofluid_pressure_based_2D_quad4_4_fluids_1_volfrac.4C.yaml
index 9003fc5a749..dc586e375de 100644
--- a/tests/input_files/porofluid_pressure_based_2D_quad4_4_fluids_1_volfrac.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_2D_quad4_4_fluids_1_volfrac.4C.yaml
@@ -35,7 +35,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_2D_quad4_linebased_artery_coupling.4C.yaml b/tests/input_files/porofluid_pressure_based_2D_quad4_linebased_artery_coupling.4C.yaml
index 831b73278e7..e77fe6cc0e8 100644
--- a/tests/input_files/porofluid_pressure_based_2D_quad4_linebased_artery_coupling.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_2D_quad4_linebased_artery_coupling.4C.yaml
@@ -59,7 +59,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_2D_quad4_nodal_artery_coupling.4C.yaml b/tests/input_files/porofluid_pressure_based_2D_quad4_nodal_artery_coupling.4C.yaml
index 82caa2da80f..4b16cb6d2b1 100644
--- a/tests/input_files/porofluid_pressure_based_2D_quad4_nodal_artery_coupling.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_2D_quad4_nodal_artery_coupling.4C.yaml
@@ -57,7 +57,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_3D_hex8.4C.yaml b/tests/input_files/porofluid_pressure_based_3D_hex8.4C.yaml
index f913bb74fac..55d7e2caee5 100644
--- a/tests/input_files/porofluid_pressure_based_3D_hex8.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_3D_hex8.4C.yaml
@@ -34,7 +34,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_3D_tet4.4C.yaml b/tests/input_files/porofluid_pressure_based_3D_tet4.4C.yaml
index 74faccdde66..0f033819881 100644
--- a/tests/input_files/porofluid_pressure_based_3D_tet4.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_3D_tet4.4C.yaml
@@ -34,7 +34,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_part.4C.yaml b/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_part.4C.yaml
index 9f1eb20065e..1a3106ac327 100644
--- a/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_part.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_part.4C.yaml
@@ -53,7 +53,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_part_reaction.4C.yaml b/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_part_reaction.4C.yaml
index 8c13de8d2db..a9577fa0703 100644
--- a/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_part_reaction.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_part_reaction.4C.yaml
@@ -53,7 +53,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_poromulti_mono.4C.yaml b/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_poromulti_mono.4C.yaml
index bcdc64c6a75..f82c1dc9637 100644
--- a/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_poromulti_mono.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_poromulti_mono.4C.yaml
@@ -60,7 +60,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_tumor.4C.yaml b/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_tumor.4C.yaml
index 6d32ef31bc6..e61870606bf 100644
--- a/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_tumor.4C.yaml
+++ b/tests/input_files/porofluid_pressure_based_elast_scatra_2D_quad4_tumor.4C.yaml
@@ -72,7 +72,6 @@ SOLVER 2:
   AZTOL: 1e-06
   AZOUTPUT: 5
   AZREUSE: 8
-  AZSUB: 25
   NAME: "L2-projection solver for fluxes/pressure gradient"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/red_airway_2_acinus_of_3Exponential_alveolar_ducts.4C.yaml b/tests/input_files/red_airway_2_acinus_of_3Exponential_alveolar_ducts.4C.yaml
index 68a3a15e6cb..032417f3228 100644
--- a/tests/input_files/red_airway_2_acinus_of_3Exponential_alveolar_ducts.4C.yaml
+++ b/tests/input_files/red_airway_2_acinus_of_3Exponential_alveolar_ducts.4C.yaml
@@ -16,7 +16,6 @@ SOLVER 1:
   SOLVER: "UMFPACK"
   AZSOLVE: "CG"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
-  AZSUB: 25
   NAME: "Reduced_dimensional_Airways_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/red_airway_acinus_of_3Exponential_alveolar_ducts.4C.yaml b/tests/input_files/red_airway_acinus_of_3Exponential_alveolar_ducts.4C.yaml
index 95fabd7dc2f..1afef716139 100644
--- a/tests/input_files/red_airway_acinus_of_3Exponential_alveolar_ducts.4C.yaml
+++ b/tests/input_files/red_airway_acinus_of_3Exponential_alveolar_ducts.4C.yaml
@@ -16,7 +16,6 @@ SOLVER 1:
   SOLVER: "UMFPACK"
   AZSOLVE: "CG"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
-  AZSUB: 25
   NAME: "Reduced_dimensional_Airways_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/scatra_gaussian_hill_pbc.4C.yaml b/tests/input_files/scatra_gaussian_hill_pbc.4C.yaml
index cc055714df5..1b80d61fe95 100644
--- a/tests/input_files/scatra_gaussian_hill_pbc.4C.yaml
+++ b/tests/input_files/scatra_gaussian_hill_pbc.4C.yaml
@@ -27,7 +27,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 40
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/scatra_gaussian_hill_pbc_gena_cons.4C.yaml b/tests/input_files/scatra_gaussian_hill_pbc_gena_cons.4C.yaml
index 67c50c59086..23b89bc890f 100644
--- a/tests/input_files/scatra_gaussian_hill_pbc_gena_cons.4C.yaml
+++ b/tests/input_files/scatra_gaussian_hill_pbc_gena_cons.4C.yaml
@@ -31,7 +31,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 40
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/scatra_gaussian_hill_pbc_genalpha.4C.yaml b/tests/input_files/scatra_gaussian_hill_pbc_genalpha.4C.yaml
index 4fd4c012602..9608e5f2ad8 100644
--- a/tests/input_files/scatra_gaussian_hill_pbc_genalpha.4C.yaml
+++ b/tests/input_files/scatra_gaussian_hill_pbc_genalpha.4C.yaml
@@ -31,7 +31,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-09
-  AZSUB: 40
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/scatra_graetz_problem_system.4C.yaml b/tests/input_files/scatra_graetz_problem_system.4C.yaml
index 6bf79f681e5..64a10252b14 100644
--- a/tests/input_files/scatra_graetz_problem_system.4C.yaml
+++ b/tests/input_files/scatra_graetz_problem_system.4C.yaml
@@ -47,13 +47,11 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-07
-  AZSUB: 25
   NAME: "Sca_Tra_Solver"
 SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-07
-  AZSUB: 25
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/scatra_graetz_problem_system_ost.4C.yaml b/tests/input_files/scatra_graetz_problem_system_ost.4C.yaml
index 19f262585f6..1c44214680c 100644
--- a/tests/input_files/scatra_graetz_problem_system_ost.4C.yaml
+++ b/tests/input_files/scatra_graetz_problem_system_ost.4C.yaml
@@ -44,13 +44,11 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-07
-  AZSUB: 25
   NAME: "Sca_Tra_Solver"
 SOLVER 2:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-07
-  AZSUB: 25
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/scatra_pper_primary_current_distribution.4C.yaml b/tests/input_files/scatra_pper_primary_current_distribution.4C.yaml
index 23c00c08e3a..56422e1f849 100644
--- a/tests/input_files/scatra_pper_primary_current_distribution.4C.yaml
+++ b/tests/input_files/scatra_pper_primary_current_distribution.4C.yaml
@@ -20,7 +20,6 @@ SOLVER 1:
   SOLVER: "Belos"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-10
-  AZSUB: 25
   NAME: "Sca_Tra_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/shell7p_eas_cantilever_new_struc.4C.yaml b/tests/input_files/shell7p_eas_cantilever_new_struc.4C.yaml
index cd804514ad3..0d94af0a2ac 100644
--- a/tests/input_files/shell7p_eas_cantilever_new_struc.4C.yaml
+++ b/tests/input_files/shell7p_eas_cantilever_new_struc.4C.yaml
@@ -34,7 +34,6 @@ SOLVER 1:
   AZPREC: "MueLu"
   AZTOL: 0.001
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/shell7p_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/shell7p_eas_cantilever_new_struc_ost.4C.yaml b/tests/input_files/shell7p_eas_cantilever_new_struc_ost.4C.yaml
index 588d2e22b70..f2d4b7f9d10 100644
--- a/tests/input_files/shell7p_eas_cantilever_new_struc_ost.4C.yaml
+++ b/tests/input_files/shell7p_eas_cantilever_new_struc_ost.4C.yaml
@@ -35,7 +35,6 @@ SOLVER 1:
   AZPREC: "MueLu"
   AZTOL: 0.001
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/shell7p_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/shell7p_pseudo_orthopressure_ans_eas_new_struc.4C.yaml b/tests/input_files/shell7p_pseudo_orthopressure_ans_eas_new_struc.4C.yaml
index d8eb60a4dd2..a89d4500101 100644
--- a/tests/input_files/shell7p_pseudo_orthopressure_ans_eas_new_struc.4C.yaml
+++ b/tests/input_files/shell7p_pseudo_orthopressure_ans_eas_new_struc.4C.yaml
@@ -34,7 +34,6 @@ SOLVER 1:
   AZPREC: "MueLu"
   AZTOL: 0.0001
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/shell7p_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/shell7p_pseudo_orthopressure_ans_eas_new_struc_ost.4C.yaml b/tests/input_files/shell7p_pseudo_orthopressure_ans_eas_new_struc_ost.4C.yaml
index 81a383ddb5f..43dfd50db01 100644
--- a/tests/input_files/shell7p_pseudo_orthopressure_ans_eas_new_struc_ost.4C.yaml
+++ b/tests/input_files/shell7p_pseudo_orthopressure_ans_eas_new_struc_ost.4C.yaml
@@ -36,7 +36,6 @@ SOLVER 1:
   AZPREC: "MueLu"
   AZTOL: 0.0001
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/shell7p_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/sohex8_easmild_locsys3D_new_struc.4C.yaml b/tests/input_files/sohex8_easmild_locsys3D_new_struc.4C.yaml
index 1d322d88724..89d5915dd2a 100644
--- a/tests/input_files/sohex8_easmild_locsys3D_new_struc.4C.yaml
+++ b/tests/input_files/sohex8_easmild_locsys3D_new_struc.4C.yaml
@@ -32,7 +32,6 @@ SOLVER 1:
   AZSOLVE: "CG"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZCONV: "AZ_noscaled"
-  AZSUB: 40
   NAME: "Structure_Solver"
 DESIGN POINT DIRICH CONDITIONS:
   - E: 1
diff --git a/tests/input_files/solidscatra_contracting_cylinder_activemat_tet10.4C.yaml b/tests/input_files/solidscatra_contracting_cylinder_activemat_tet10.4C.yaml
index 5f072acfeef..c9cc1feb651 100644
--- a/tests/input_files/solidscatra_contracting_cylinder_activemat_tet10.4C.yaml
+++ b/tests/input_files/solidscatra_contracting_cylinder_activemat_tet10.4C.yaml
@@ -16,7 +16,6 @@ SOLVER 1:
   AZPREC: "MueLu"
   AZTOL: 1e-06
   AZOUTPUT: 1000
-  AZSUB: 30
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 SOLVER 2:
diff --git a/tests/input_files/sosh8_lin_bending_patchtest.4C.yaml b/tests/input_files/sosh8_lin_bending_patchtest.4C.yaml
index 5a6e376ce17..b3e3c53a427 100644
--- a/tests/input_files/sosh8_lin_bending_patchtest.4C.yaml
+++ b/tests/input_files/sosh8_lin_bending_patchtest.4C.yaml
@@ -33,7 +33,6 @@ STRUCTURAL DYNAMIC:
 SOLVER 1:
   SOLVER: "UMFPACK"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
-  AZSUB: 300
   NAME: "Structure_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/stc-mltube-sosh8.4C.yaml b/tests/input_files/stc-mltube-sosh8.4C.yaml
index a9f45981f5a..5c4b27b56e4 100644
--- a/tests/input_files/stc-mltube-sosh8.4C.yaml
+++ b/tests/input_files/stc-mltube-sosh8.4C.yaml
@@ -25,7 +25,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZTOL: 1e-06
   AZREUSE: 1
-  AZSUB: 100
   NAME: "Structure_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_pointbased.4C.yaml b/tests/input_files/sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_pointbased.4C.yaml
index 877ef7e318f..bbb0eb3ac55 100644
--- a/tests/input_files/sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_pointbased.4C.yaml
+++ b/tests/input_files/sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_pointbased.4C.yaml
@@ -44,7 +44,6 @@ SCALAR TRANSPORT DYNAMIC/S2I COUPLING:
 SOLVER 1:
   SOLVER: "Belos"
   AZPREC: "MueLu"
-  AZSUB: 100
   MUELU_XML_FILE: "sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_pointbased.xml"
 SOLVER 2:
   SOLVER: MUMPS
diff --git a/tests/input_files/sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_vectorbased.4C.yaml b/tests/input_files/sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_vectorbased.4C.yaml
index 9de44344fb9..60660ad48f6 100644
--- a/tests/input_files/sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_vectorbased.4C.yaml
+++ b/tests/input_files/sti_mono_2D_quad4_elch_s2i_butlervolmerpeltier_diabatic_AMG_vectorbased.4C.yaml
@@ -46,7 +46,6 @@ SCALAR TRANSPORT DYNAMIC/S2I COUPLING:
 SOLVER 1:
   SOLVER: "Belos"
   AZPREC: "MueLu"
-  AZSUB: 100
   THROW_IF_UNCONVERGED: false
   MUELU_XML_FILE: "xml/multigrid/sti_template.xml"
 SOLVER 2:
diff --git a/tests/input_files/strufem_hex8_cantilever.4C.yaml b/tests/input_files/strufem_hex8_cantilever.4C.yaml
index 9939dc75792..102ef14945f 100644
--- a/tests/input_files/strufem_hex8_cantilever.4C.yaml
+++ b/tests/input_files/strufem_hex8_cantilever.4C.yaml
@@ -34,7 +34,6 @@ SOLVER 1:
   AZPREC: "MueLu"
   AZTOL: 1e-05
   AZOUTPUT: 1000
-  AZSUB: 100
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/strufem_sosh8_eas_cantilever.4C.yaml b/tests/input_files/strufem_sosh8_eas_cantilever.4C.yaml
index bc4f5b6a71d..bc47ca8e088 100644
--- a/tests/input_files/strufem_sosh8_eas_cantilever.4C.yaml
+++ b/tests/input_files/strufem_sosh8_eas_cantilever.4C.yaml
@@ -27,7 +27,6 @@ SOLVER 1:
   AZPREC: "MueLu"
   AZTOL: 0.001
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/strufem_wedge6_disp_cantilever.4C.yaml b/tests/input_files/strufem_wedge6_disp_cantilever.4C.yaml
index 36da15adeb4..af4c6fa36d9 100644
--- a/tests/input_files/strufem_wedge6_disp_cantilever.4C.yaml
+++ b/tests/input_files/strufem_wedge6_disp_cantilever.4C.yaml
@@ -33,7 +33,6 @@ SOLVER 1:
   AZPREC: "MueLu"
   AZTOL: 0.001
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/w1q4_patch_eas.4C.yaml b/tests/input_files/w1q4_patch_eas.4C.yaml
index 8020d694b88..ac136a1d4ea 100644
--- a/tests/input_files/w1q4_patch_eas.4C.yaml
+++ b/tests/input_files/w1q4_patch_eas.4C.yaml
@@ -28,7 +28,6 @@ SOLVER 1:
   SOLVER: "Belos"
   AZPREC: "MueLu"
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 DESIGN LINE DIRICH CONDITIONS:
diff --git a/tests/input_files/w1q8_patch_nonlinear.4C.yaml b/tests/input_files/w1q8_patch_nonlinear.4C.yaml
index 7d78804645f..45123780878 100644
--- a/tests/input_files/w1q8_patch_nonlinear.4C.yaml
+++ b/tests/input_files/w1q8_patch_nonlinear.4C.yaml
@@ -24,7 +24,6 @@ SOLVER 1:
   AZSOLVE: "CG"
   AZPREC: "MueLu"
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/w1q9_dyn_rot_drt_gena.4C.yaml b/tests/input_files/w1q9_dyn_rot_drt_gena.4C.yaml
index 03027859452..5afac467dc1 100644
--- a/tests/input_files/w1q9_dyn_rot_drt_gena.4C.yaml
+++ b/tests/input_files/w1q9_dyn_rot_drt_gena.4C.yaml
@@ -31,7 +31,6 @@ SOLVER 1:
   AZSOLVE: "CG"
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZCONV: "AZ_noscaled"
-  AZSUB: 40
   NAME: "Structure_Solver"
 DESIGN POINT DIRICH CONDITIONS:
   - E: 2
diff --git a/tests/input_files/w1t6_patch_linear.4C.yaml b/tests/input_files/w1t6_patch_linear.4C.yaml
index 11da546565c..cde6579e147 100644
--- a/tests/input_files/w1t6_patch_linear.4C.yaml
+++ b/tests/input_files/w1t6_patch_linear.4C.yaml
@@ -22,7 +22,6 @@ SOLVER 1:
   AZSOLVE: "CG"
   AZPREC: "MueLu"
   AZOUTPUT: 1000
-  AZSUB: 25
   MUELU_XML_FILE: "xml/multigrid/elasticity_template.xml"
   NAME: "Structure_Solver"
 MATERIALS:
diff --git a/tests/input_files/xff_kimmoin_15x15_instat_nitemb_xfemgp_emb_layer_dens_5.4C.yaml b/tests/input_files/xff_kimmoin_15x15_instat_nitemb_xfemgp_emb_layer_dens_5.4C.yaml
index 97e33ddd7ea..dfcd0b55952 100644
--- a/tests/input_files/xff_kimmoin_15x15_instat_nitemb_xfemgp_emb_layer_dens_5.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_instat_nitemb_xfemgp_emb_layer_dens_5.4C.yaml
@@ -43,7 +43,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_instat_nitemb_xfemgp_emb_layer_dens_5_newost.4C.yaml b/tests/input_files/xff_kimmoin_15x15_instat_nitemb_xfemgp_emb_layer_dens_5_newost.4C.yaml
index 8f5d598ae33..67e6e38691c 100644
--- a/tests/input_files/xff_kimmoin_15x15_instat_nitemb_xfemgp_emb_layer_dens_5_newost.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_instat_nitemb_xfemgp_emb_layer_dens_5_newost.4C.yaml
@@ -46,7 +46,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_mhcs_edgeb_gp_dens_1.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_mhcs_edgeb_gp_dens_1.4C.yaml
index c99244fe831..76cbd3bd8ab 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_mhcs_edgeb_gp_dens_1.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_mhcs_edgeb_gp_dens_1.4C.yaml
@@ -46,7 +46,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xff_kimmoin_ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_mhcs_edgeb_gp_dens_5.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_mhcs_edgeb_gp_dens_5.4C.yaml
index ccb3e349501..447dbca03f7 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_mhcs_edgeb_gp_dens_5.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_mhcs_edgeb_gp_dens_5.4C.yaml
@@ -45,7 +45,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xff_kimmoin_ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_mhvs_xfemgp_dens_1.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_mhvs_xfemgp_dens_1.4C.yaml
index 696aee4d974..616e083a36d 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_mhvs_xfemgp_dens_1.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_mhvs_xfemgp_dens_1.4C.yaml
@@ -43,7 +43,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_mhvs_xfemgp_dens_5.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_mhvs_xfemgp_dens_5.4C.yaml
index 8013870f0c7..82d94abb3f2 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_mhvs_xfemgp_dens_5.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_mhvs_xfemgp_dens_5.4C.yaml
@@ -43,7 +43,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_emb_layer_dens_5.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_emb_layer_dens_5.4C.yaml
index 49cd59ad68a..e80caf39d16 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_emb_layer_dens_5.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_emb_layer_dens_5.4C.yaml
@@ -46,7 +46,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xff_kimmoin_ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_emb_layer_dens_5_OneDofset.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_emb_layer_dens_5_OneDofset.4C.yaml
index 7f13b230e15..53c1d372ea8 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_emb_layer_dens_5_OneDofset.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_emb_layer_dens_5_OneDofset.4C.yaml
@@ -48,7 +48,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xff_kimmoin_ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_evp_dens_1.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_evp_dens_1.4C.yaml
index 4086c4915f9..1c48618a8ef 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_evp_dens_1.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_evp_dens_1.4C.yaml
@@ -46,7 +46,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xff_kimmoin_ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_evp_dens_5.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_evp_dens_5.4C.yaml
index a94a1e4ada2..14f925f51cb 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_evp_dens_5.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_nitemb_edgeb_gp_evp_dens_5.4C.yaml
@@ -47,7 +47,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xff_kimmoin_ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_kimmoin_15x15_stat_nitx_edgeb_gp_dens_5.4C.yaml b/tests/input_files/xff_kimmoin_15x15_stat_nitx_edgeb_gp_dens_5.4C.yaml
index 16a3dae78b5..db94cdea40b 100644
--- a/tests/input_files/xff_kimmoin_15x15_stat_nitx_edgeb_gp_dens_5.4C.yaml
+++ b/tests/input_files/xff_kimmoin_15x15_stat_nitx_edgeb_gp_dens_5.4C.yaml
@@ -46,7 +46,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack_level-of-fill_3.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1
diff --git a/tests/input_files/xff_stat_cylinder_testcut.4C.yaml b/tests/input_files/xff_stat_cylinder_testcut.4C.yaml
index 9091b4d0026..f1ddec5283a 100644
--- a/tests/input_files/xff_stat_cylinder_testcut.4C.yaml
+++ b/tests/input_files/xff_stat_cylinder_testcut.4C.yaml
@@ -39,7 +39,6 @@ SOLVER 1:
   IFPACK_XML_FILE: "xml/preconditioner/ifpack.xml"
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 XFEM GENERAL:
   VOLUME_GAUSS_POINTS_BY: "DirectDivergence"
diff --git a/tests/input_files/xfluid_comp_struct_EOS_touched_cut.4C.yaml b/tests/input_files/xfluid_comp_struct_EOS_touched_cut.4C.yaml
index acf4dc202e4..04fae43d863 100644
--- a/tests/input_files/xfluid_comp_struct_EOS_touched_cut.4C.yaml
+++ b/tests/input_files/xfluid_comp_struct_EOS_touched_cut.4C.yaml
@@ -30,7 +30,6 @@ SOLVER 1:
   AZTOL: 1e-13
   AZOUTPUT: 50
   AZREUSE: 5
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 XFEM GENERAL:
   VOLUME_GAUSS_POINTS_BY: "DirectDivergence"
diff --git a/tests/input_files/xfluid_comp_struct_EOS_touched_cut_OneDofset.4C.yaml b/tests/input_files/xfluid_comp_struct_EOS_touched_cut_OneDofset.4C.yaml
index a9c2f6c4e77..7de002887ad 100644
--- a/tests/input_files/xfluid_comp_struct_EOS_touched_cut_OneDofset.4C.yaml
+++ b/tests/input_files/xfluid_comp_struct_EOS_touched_cut_OneDofset.4C.yaml
@@ -30,7 +30,6 @@ SOLVER 1:
   AZTOL: 1e-13
   AZOUTPUT: 50
   AZREUSE: 5
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 XFEM GENERAL:
   MAX_NUM_DOFSETS: 1
diff --git a/tests/input_files/xfluid_kimmoin_stat_40x40x1_wedge6_levelset.4C.yaml b/tests/input_files/xfluid_kimmoin_stat_40x40x1_wedge6_levelset.4C.yaml
index 031540ff5db..4e2aeaf261d 100644
--- a/tests/input_files/xfluid_kimmoin_stat_40x40x1_wedge6_levelset.4C.yaml
+++ b/tests/input_files/xfluid_kimmoin_stat_40x40x1_wedge6_levelset.4C.yaml
@@ -44,7 +44,6 @@ SOLVER 1:
   AZTOL: 1e-13
   AZOUTPUT: 50
   AZREUSE: 1
-  AZSUB: 1000
   NAME: "Fluid_Solver"
 SOLVER 2:
   SOLVER: "UMFPACK"
diff --git a/tests/input_files/xfluid_stat_sliver_cut_instat.4C.yaml b/tests/input_files/xfluid_stat_sliver_cut_instat.4C.yaml
index 05eafe29544..9526cce02b3 100644
--- a/tests/input_files/xfluid_stat_sliver_cut_instat.4C.yaml
+++ b/tests/input_files/xfluid_stat_sliver_cut_instat.4C.yaml
@@ -39,7 +39,6 @@ SOLVER 1:
   AZTOL: 1e-12
   AZOUTPUT: 1
   AZREUSE: 4
-  AZSUB: 40
   THROW_IF_UNCONVERGED: false
   NAME: "Fluid_Solver"
 MATERIALS:
diff --git a/tests/input_files/xfluid_stat_sliver_cut_instatDiv.4C.yaml b/tests/input_files/xfluid_stat_sliver_cut_instatDiv.4C.yaml
index 33a99555d00..71c61f5e52c 100644
--- a/tests/input_files/xfluid_stat_sliver_cut_instatDiv.4C.yaml
+++ b/tests/input_files/xfluid_stat_sliver_cut_instatDiv.4C.yaml
@@ -42,7 +42,6 @@ SOLVER 1:
   AZTOL: 1e-12
   AZOUTPUT: 1
   AZREUSE: 4
-  AZSUB: 40
   NAME: "Fluid_Solver"
 MATERIALS:
   - MAT: 1