Remove 27pt stencil example; Update timing output

The example output was previously done on a laptop in debug mode. Now, it was performed on a PC in release mode to be representative (performance is usually always measured in release mode).
ginkgo-project · thoasm · Aug 12, 2020 · Jul 30, 2020 · Aug 3, 2020 · Aug 3, 2020
commit 20a044f16dd0c52cce691e826bdcb5375ea501de
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
@@ -23,4 +23,3 @@ add_subdirectory(preconditioner-export)
 add_subdirectory(simple-solver)
 add_subdirectory(simple-solver-logging)
 add_subdirectory(three-pt-stencil-solver)
-add_subdirectory(twentyseven-pt-stencil-solver)
diff --git a/examples/ginkgo-overhead/doc/results.dox b/examples/ginkgo-overhead/doc/results.dox
@@ -3,8 +3,8 @@ This is the expected output:
 
 @code{.cpp}
 
-Running 1000000 iterations of the CG solver took a total of 13.7016 seconds.
-	Average library overhead:     13701.6 [nanoseconds / iteration]
+Running 1000000 iterations of the CG solver took a total of 1.62987 seconds.
+	Average library overhead:     1629.87 [nanoseconds / iteration]
 
 @endcode
 

diff --git a/examples/performance-debugging/doc/results.dox b/examples/performance-debugging/doc/results.dox
@@ -23,22 +23,22 @@ The performance and residual data can be found in log.txt
 Here is a sample output in the file log.txt:
 @code{.cpp}
 
-Generate time (ns): 30933
-Apply time (ns): 4367019
+Generate time (ns): 861
+Apply time (ns): 108144
 Residual_norm: 2.10788e-15
 Generate operations times (ns):
 Apply operations times (ns):
-	allocate: 80420
-	cg::initialize#8: 22706
-	cg::step_1#5: 535333
-	cg::step_2#7: 503107
-	copy: 49673
-	csr::advanced_spmv#5: 1075346
-	csr::spmv#3: 1003654
-	dense::compute_dot#3: 373359
-	dense::compute_norm2#2: 528621
-	free: 39759
-	residual_norm::residual_norm#9: 162188
+	allocate: 14991
+	cg::initialize#8: 872
+	cg::step_1#5: 7683
+	cg::step_2#7: 7756
+	copy: 7751
+	csr::advanced_spmv#5: 21819
+	csr::spmv#3: 20429
+	dense::compute_dot#3: 18043
+	dense::compute_norm2#2: 16726
+	free: 8857
+	residual_norm::residual_norm#9: 3614
 Recurrent Residual Norms:
 [
 	4.3589

diff --git a/examples/twentyseven-pt-stencil-solver/CMakeLists.txt b/examples/twentyseven-pt-stencil-solver/CMakeLists.txt
diff --git a/examples/twentyseven-pt-stencil-solver/build.sh b/examples/twentyseven-pt-stencil-solver/build.sh
diff --git a/examples/twentyseven-pt-stencil-solver/doc/builds-on b/examples/twentyseven-pt-stencil-solver/doc/builds-on
diff --git a/examples/twentyseven-pt-stencil-solver/doc/intro.dox b/examples/twentyseven-pt-stencil-solver/doc/intro.dox
diff --git a/examples/twentyseven-pt-stencil-solver/doc/kind b/examples/twentyseven-pt-stencil-solver/doc/kind
diff --git a/examples/twentyseven-pt-stencil-solver/doc/results.dox b/examples/twentyseven-pt-stencil-solver/doc/results.dox
diff --git a/examples/twentyseven-pt-stencil-solver/doc/short-intro b/examples/twentyseven-pt-stencil-solver/doc/short-intro
diff --git a/examples/twentyseven-pt-stencil-solver/doc/tooltip b/examples/twentyseven-pt-stencil-solver/doc/tooltip