@code
> make run
+[ 33%] Building CXX object CMakeFiles/step-29.dir/step-29.cc.o
+[ 66%] Linking CXX executable step-29
[ 66%] Built target step-29
[100%] Run step-29 with Debug configuration
-Generating grid... done (0.820449s)
+Generating grid... done (0.675234s)
Number of active cells: 25600
-Setting up system... done (1.18392s)
+Setting up system... done (0.375661s)
Number of degrees of freedom: 51842
-Assembling system matrix... done (2.33291s)
-Solving linear system... done (1.34837s)
-Generating output... done (2.05782s)
+Assembling system matrix... done (1.96864s)
+Solving linear system... done (0.861862s)
+Generating output... done (1.66913s)
[100%] Built target run
@endcode
@code
> make run
+[ 33%] Building CXX object CMakeFiles/step-29.dir/step-29.cc.o
+[ 66%] Linking CXX executable step-29
[ 66%] Built target step-29
-Scanning dependencies of target run
[100%] Run step-29 with Release configuration
-DEAL::Generating grid... done (0.0144960s)
-DEAL:: Number of active cells: 25600
-DEAL::Setting up system... done (0.0356880s)
-DEAL:: Number of degrees of freedom: 51842
-DEAL::Assembling system matrix... done (0.0436570s)
-DEAL::Solving linear system... done (1.54733s)
-DEAL::Generating output... done (0.720528s)
+Generating grid... done (0.005207s)
+ Number of active cells: 25600
+Setting up system... done (0.018111s)
+ Number of degrees of freedom: 51842
+Assembling system matrix... done (0.021501s)
+Solving linear system... done (0.590303s)
+Generating output... done (0.090787s)
[100%] Built target run
@endcode
> make run
[ 66%] Built target step-29
[100%] Run step-29 with Release configuration
-DEAL::Generating grid... done (0.0135260s)
-DEAL:: Number of active cells: 25600
-DEAL::Setting up system... done (0.0213910s)
-DEAL:: Number of degrees of freedom: 51842
-DEAL::Assembling system matrix... done (0.0414300s)
-DEAL::Solving linear system... done (1.56621s)
-DEAL::Generating output... done (0.729605s)
+Generating grid... done (0.008767s)
+ Number of active cells: 25600
+Setting up system... done (0.007043s)
+ Number of degrees of freedom: 51842
+Assembling system matrix... done (0.020942s)
+Solving linear system... done (0.585853s)
+Generating output... done (0.092681s)
[100%] Built target run
> make run
[ 66%] Built target step-29
[100%] Run step-29 with Release configuration
-DEAL::Generating grid... done (0.0668490s)
-DEAL:: Number of active cells: 102400
-DEAL::Setting up system... done (0.109694s)
-DEAL:: Number of degrees of freedom: 206082
-DEAL::Assembling system matrix... done (0.160784s)
-DEAL::Solving linear system... done (7.86577s)
-DEAL::Generating output... done (2.89320s)
+Generating grid... done (0.027986s)
+ Number of active cells: 102400
+Setting up system... done (0.070022s)
+ Number of degrees of freedom: 206082
+Assembling system matrix... done (0.075252s)
+Solving linear system... done (4.13989s)
+Generating output... done (0.369556s)
[100%] Built target run
> make run
[ 66%] Built target step-29
[100%] Run step-29 with Release configuration
-DEAL::Generating grid... done (0.293154s)
-DEAL:: Number of active cells: 409600
-DEAL::Setting up system... done (0.491301s)
-DEAL:: Number of degrees of freedom: 821762
-DEAL::Assembling system matrix... done (0.605386s)
-DEAL::Solving linear system... done (45.1989s)
-DEAL::Generating output... done (11.2292s)
+Generating grid... done (0.186439s)
+ Number of active cells: 409600
+Setting up system... done (0.272828s)
+ Number of degrees of freedom: 821762
+Assembling system matrix... done (0.316252s)
+Solving linear system... done (33.1424s)
+Generating output... done (1.36328s)
[100%] Built target run
@endcode
-Each time we refine the mesh once, so the number of cells and degrees
+Each time we refine the mesh once more, so the number of cells and degrees
of freedom roughly quadruples from each step to the next. As can be seen,
generating the grid, setting up degrees of freedom, assembling the
linear system, and generating output scale pretty closely to linear,