Merge pull request #6222 from quangx/constant_modes

Add constant mode settings to Amg_data

Author: gassmoeller

doc/modules/changes/20250131_hoang

@@ -0,0 +1,3 @@
+Fixed: Constant modes are now used in the melt solver.
+<br>
+(Quang Hoang, Timo Heister, 2025/01/31)

source/simulator/assembly.cc

@@ -525,6 +525,7 @@ namespace aspect
 
         Amg_data.smoother_sweeps = 2;
         Amg_data.coarse_type = "symmetric Gauss-Seidel";
+        Amg_data.constant_modes = constant_modes;
 
         LinearAlgebra::PreconditionAMG *Mp_preconditioner_AMG
           = dynamic_cast<LinearAlgebra::PreconditionAMG *> (Mp_preconditioner.get());

tests/advect_field_with_melt_velocity/screen-output

@@ -22,8 +22,8 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 6.90385e-17, 2.38127e-16, 1.13416e-16, 1.13416e-16, 5.77882e-09
-      Relative nonlinear residual (total system) after nonlinear iteration 2: 5.77882e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 6.90385e-17, 2.38127e-16, 1.13416e-16, 1.13416e-16, 8.72904e-09
+      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.72904e-09
 
 
    Postprocessing:
@@ -38,7 +38,7 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.80064e-15, 1.59221e-13, 0.0442513, 0.159394, 5.77882e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.91569e-15, 1.59228e-13, 0.0442513, 0.159394, 8.72904e-09
       Relative nonlinear residual (total system) after nonlinear iteration 1: 0.159394
 
    Solving temperature system... 0 iterations.
@@ -48,8 +48,8 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.80064e-15, 1.59221e-13, 1.8083e-14, 9.49633e-13, 5.77882e-09
-      Relative nonlinear residual (total system) after nonlinear iteration 2: 5.77882e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.91569e-15, 1.59228e-13, 1.8083e-14, 9.49627e-13, 8.72904e-09
+      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.72904e-09
 
 
    Postprocessing:
@@ -64,7 +64,7 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.97535e-15, 1.06272e-13, 0.0154324, 0.0604684, 5.77883e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.78397e-15, 1.06273e-13, 0.0154324, 0.0604684, 8.72904e-09
       Relative nonlinear residual (total system) after nonlinear iteration 1: 0.0604684
 
    Solving temperature system... 0 iterations.
@@ -74,8 +74,8 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.97535e-15, 1.06272e-13, 5.48776e-13, 8.11903e-13, 5.77883e-09
-      Relative nonlinear residual (total system) after nonlinear iteration 2: 5.77883e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.78397e-15, 1.06273e-13, 5.48774e-13, 8.11886e-13, 8.72904e-09
+      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.72904e-09
 
 
    Postprocessing:
@@ -90,7 +90,7 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.90601e-15, 1.06278e-13, 0.0104717, 0.0620668, 5.77884e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.76908e-15, 1.06271e-13, 0.0104717, 0.0620668, 8.72904e-09
       Relative nonlinear residual (total system) after nonlinear iteration 1: 0.0620668
 
    Solving temperature system... 0 iterations.
@@ -100,8 +100,8 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.90601e-15, 1.06278e-13, 5.94512e-13, 7.3382e-13, 5.77884e-09
-      Relative nonlinear residual (total system) after nonlinear iteration 2: 5.77884e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.76908e-15, 1.06271e-13, 5.94514e-13, 7.33849e-13, 8.72904e-09
+      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.72904e-09
 
 
    Postprocessing:
@@ -116,7 +116,7 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 4.0483e-15, 1.0627e-13, 0.00494652, 0.0492745, 5.77884e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 2.8254e-15, 1.06277e-13, 0.00494652, 0.0492745, 8.72904e-09
       Relative nonlinear residual (total system) after nonlinear iteration 1: 0.0492745
 
    Solving temperature system... 0 iterations.
@@ -126,8 +126,8 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 4.0483e-15, 1.0627e-13, 1.14179e-13, 9.55409e-13, 5.77884e-09
-      Relative nonlinear residual (total system) after nonlinear iteration 2: 5.77884e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 2.8254e-15, 1.06277e-13, 1.14181e-13, 9.55375e-13, 8.72904e-09
+      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.72904e-09
 
 
    Postprocessing:
@@ -142,7 +142,7 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.9216e-15, 1.06277e-13, 0.00277529, 0.0382927, 5.77885e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 5.10785e-15, 1.0627e-13, 0.00277529, 0.0382927, 8.72904e-09
       Relative nonlinear residual (total system) after nonlinear iteration 1: 0.0382927
 
    Solving temperature system... 0 iterations.
@@ -152,8 +152,8 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.9216e-15, 1.06277e-13, 9.49527e-14, 2.08796e-13, 5.77885e-09
-      Relative nonlinear residual (total system) after nonlinear iteration 2: 5.77885e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 5.10785e-15, 1.0627e-13, 9.49504e-14, 2.08775e-13, 8.72904e-09
+      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.72904e-09
 
 
    Postprocessing:
@@ -168,7 +168,7 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.91172e-15, 1.06274e-13, 0.00159055, 0.0352807, 5.77885e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.82205e-15, 1.06265e-13, 0.00159055, 0.0352807, 8.72904e-09
       Relative nonlinear residual (total system) after nonlinear iteration 1: 0.0352807
 
    Solving temperature system... 0 iterations.
@@ -178,8 +178,8 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.91172e-15, 1.06274e-13, 7.85968e-13, 3.33996e-13, 5.77885e-09
-      Relative nonlinear residual (total system) after nonlinear iteration 2: 5.77885e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 3.82205e-15, 1.06265e-13, 7.85965e-13, 3.33889e-13, 8.72904e-09
+      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.72904e-09
 
 
    Postprocessing:
@@ -194,7 +194,7 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 4.15113e-15, 4.96403e-14, 0.000415237, 0.00896686, 5.77885e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 4.00097e-15, 4.96335e-14, 0.000415237, 0.00896686, 8.72904e-09
       Relative nonlinear residual (total system) after nonlinear iteration 1: 0.00896686
 
    Solving temperature system... 0 iterations.
@@ -204,8 +204,8 @@ Number of degrees of freedom: 39,050 (8,450+4,161+8,450+1,089+4,225+4,225+4,225+
    Rebuilding Stokes preconditioner...
    Solving Stokes system (AMG)... 0+0 iterations.
    Solving fluid velocity system... 1 iterations.
-      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 4.15113e-15, 4.96403e-14, 5.10735e-13, 5.84425e-13, 5.77885e-09
-      Relative nonlinear residual (total system) after nonlinear iteration 2: 5.77885e-09
+      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 4.00097e-15, 4.96335e-14, 5.10732e-13, 5.84423e-13, 8.72904e-09
+      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.72904e-09
 
 
    Postprocessing:

tests/advect_field_with_melt_velocity/statistics

@@ -23,11 +23,11 @@
 # 23: Maximal value for composition melt_composition
 # 24: Global mass for composition melt_composition
 # 25: Visualization file name
-0 0.000000000000e+00 0.000000000000e+00 1024 9539 4225 12675 2 0 0 0  0 4294967295 2 50 8.72158000e-02 8.72158000e-02 8.72158000e-02  0.00000000e+00 1.00000000e+00 4.94791667e-01  0.00000000e+00 1.00000000e+00 4.94791667e-01 output-advect_field_with_melt_velocity/solution/solution-00000 
-1 1.562530132333e-02 1.562530132333e-02 1024 9539 4225 12675 2 0 0 6 17 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -1.69187299e-20 1.02827360e+00 4.94791667e-01 -3.77019961e-02 1.00000000e+00 4.79166667e-01 output-advect_field_with_melt_velocity/solution/solution-00001 
-2 3.125060264666e-02 1.562530132333e-02 1024 9539 4225 12675 2 0 0 9 19 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -6.62657772e-05 1.01836204e+00 4.94791667e-01 -1.96241022e-02 1.00000000e+00 4.63541743e-01 output-advect_field_with_melt_velocity/solution/solution-00002 
-3 4.687590396998e-02 1.562530132333e-02 1024 9539 4225 12675 2 0 0 9 19 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -3.12485607e-04 1.00881105e+00 4.94791667e-01 -7.95807511e-03 1.00000000e+00 4.47917399e-01 output-advect_field_with_melt_velocity/solution/solution-00003 
-4 6.250120529331e-02 1.562530132333e-02 1024 9539 4225 12675 2 0 0 9 18 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -1.70149688e-04 1.01047335e+00 4.94791667e-01 -2.88929277e-02 1.00000000e+00 4.32295273e-01 output-advect_field_with_melt_velocity/solution/solution-00004 
-5 7.812650661664e-02 1.562530132333e-02 1024 9539 4225 12675 2 0 0 9 19 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -7.41383830e-05 1.01044868e+00 4.94791667e-01 -4.48229755e-02 1.00000000e+00 4.16678736e-01 output-advect_field_with_melt_velocity/solution/solution-00005 
-6 9.375180793997e-02 1.562530132333e-02 1024 9539 4225 12675 2 0 0 8 19 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -3.90173583e-05 1.00979390e+00 4.94791667e-01 -3.41543141e-02 1.00000000e+00 4.01072265e-01 output-advect_field_with_melt_velocity/solution/solution-00006 
-7 1.000000000000e-01 6.248192060034e-03 1024 9539 4225 12675 2 0 0 8 14 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -3.07771393e-05 1.00952621e+00 4.94791667e-01 -3.79644523e-02 1.00000000e+00 3.94835069e-01 output-advect_field_with_melt_velocity/solution/solution-00007 
+0 0.000000000000e+00 0.000000000000e+00 1024 9539 4225 12675 2 0 0 0  0 4294967295 2 54 8.72158000e-02 8.72158000e-02 8.72158000e-02  0.00000000e+00 1.00000000e+00 4.94791667e-01  0.00000000e+00 1.00000000e+00 4.94791667e-01 output-advect_field_with_melt_velocity/solution/solution-00000 
+1 1.562530121986e-02 1.562530121986e-02 1024 9539 4225 12675 2 0 0 6 17 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -1.69187319e-20 1.02827360e+00 4.94791667e-01 -3.77019966e-02 1.00000000e+00 4.79166667e-01 output-advect_field_with_melt_velocity/solution/solution-00001 
+2 3.125060243973e-02 1.562530121986e-02 1024 9539 4225 12675 2 0 0 9 19 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -6.62657765e-05 1.01836204e+00 4.94791667e-01 -1.96241030e-02 1.00000000e+00 4.63541744e-01 output-advect_field_with_melt_velocity/solution/solution-00002 
+3 4.687590365959e-02 1.562530121986e-02 1024 9539 4225 12675 2 0 0 9 19 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -3.12485627e-04 1.00881105e+00 4.94791667e-01 -7.95807538e-03 1.00000000e+00 4.47917399e-01 output-advect_field_with_melt_velocity/solution/solution-00003 
+4 6.250120487945e-02 1.562530121986e-02 1024 9539 4225 12675 2 0 0 9 18 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -1.70149721e-04 1.01047335e+00 4.94791667e-01 -2.88929277e-02 1.00000000e+00 4.32295274e-01 output-advect_field_with_melt_velocity/solution/solution-00004 
+5 7.812650609932e-02 1.562530121986e-02 1024 9539 4225 12675 2 0 0 9 19 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -7.41383866e-05 1.01044868e+00 4.94791667e-01 -4.48229756e-02 1.00000000e+00 4.16678736e-01 output-advect_field_with_melt_velocity/solution/solution-00005 
+6 9.375180731918e-02 1.562530121986e-02 1024 9539 4225 12675 2 0 0 8 19 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -3.90173627e-05 1.00979390e+00 4.94791667e-01 -3.41543149e-02 1.00000000e+00 4.01072265e-01 output-advect_field_with_melt_velocity/solution/solution-00006 
+7 1.000000000000e-01 6.248192680821e-03 1024 9539 4225 12675 2 0 0 8 14 4294967294 0  0 8.72158000e-02 8.72158000e-02 8.72158000e-02 -3.07771429e-05 1.00952621e+00 4.94791667e-01 -3.79644529e-02 1.00000000e+00 3.94835069e-01 output-advect_field_with_melt_velocity/solution/solution-00007