From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Sat, 11 May 2024 13:50:54 +0000 (-0600)
Subject: Test step-39.
X-Git-Tag: v9.6.0-rc1~289^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F17004%2Fhead;p=dealii.git

Test step-39.
---

diff --git a/tests/examples/step-39.diff b/tests/examples/step-39.diff
new file mode 100644
index 0000000000..99f8dcb308
--- /dev/null
+++ b/tests/examples/step-39.diff
@@ -0,0 +1,4 @@
+991c991
+<       test1.run(12);
+---
+>       test1.run(3);
diff --git a/tests/examples/step-39.output b/tests/examples/step-39.output
new file mode 100644
index 0000000000..40579e254f
--- /dev/null
+++ b/tests/examples/step-39.output
@@ -0,0 +1,43 @@
+DEAL::Element: FE_DGQ<2>(3)
+DEAL::Step 0
+DEAL::Triangulation 16 cells, 2 levels
+DEAL::DoFHandler 256 dofs, level dofs 64 256
+DEAL::Assemble matrix
+DEAL::Assemble multilevel matrix
+DEAL::Assemble right hand side
+DEAL::Solve
+DEAL:cg::Starting value 37.4071
+DEAL:cg::Convergence step 13 value 1.64974e-13
+DEAL::energy-error: 0.297419
+DEAL::L2-error:     0.00452447
+DEAL::Estimate 0.990460
+DEAL::Writing solution to <sol-00.gnuplot>...
+DEAL::
+DEAL::Step 1
+DEAL::Triangulation 25 cells, 3 levels
+DEAL::DoFHandler 400 dofs, level dofs 64 256 192
+DEAL::Assemble matrix
+DEAL::Assemble multilevel matrix
+DEAL::Assemble right hand side
+DEAL::Solve
+DEAL:cg::Starting value 37.4071
+DEAL:cg::Convergence step 14 value 3.72262e-13
+DEAL::energy-error: 0.258559
+DEAL::L2-error:     0.00288510
+DEAL::Estimate 0.738624
+DEAL::Writing solution to <sol-01.gnuplot>...
+DEAL::
+DEAL::Step 2
+DEAL::Triangulation 34 cells, 4 levels
+DEAL::DoFHandler 544 dofs, level dofs 64 256 256 128
+DEAL::Assemble matrix
+DEAL::Assemble multilevel matrix
+DEAL::Assemble right hand side
+DEAL::Solve
+DEAL:cg::Starting value 37.4071
+DEAL:cg::Convergence step 15 value 1.91610e-13
+DEAL::energy-error: 0.189234
+DEAL::L2-error:     0.00147954
+DEAL::Estimate 0.657507
+DEAL::Writing solution to <sol-02.gnuplot>...
+DEAL::