]> https://gitweb.dealii.org/ - dealii.git/log
dealii.git
7 years agoProvide additional 64 bit output numbers for DataOut. 4042/head
Martin Kronbichler [Mon, 6 Mar 2017 06:59:52 +0000 (07:59 +0100)]
Provide additional 64 bit output numbers for DataOut.

7 years agoAdd output file for OpenMPI 1.8.x.
Martin Kronbichler [Mon, 6 Mar 2017 06:57:24 +0000 (07:57 +0100)]
Add output file for OpenMPI 1.8.x.

Verified on two machines with different installations, using 1.8.7 and 1.8.8

7 years agoMerge pull request #4039 from drwells/use-assert-internal-error
Martin Kronbichler [Mon, 6 Mar 2017 06:35:46 +0000 (07:35 +0100)]
Merge pull request #4039 from drwells/use-assert-internal-error

Use Assert, not AssertThrow, with ExcInternalError.

7 years agoMerge pull request #4041 from drwells/update-contributing-links
Wolfgang Bangerth [Mon, 6 Mar 2017 00:06:46 +0000 (17:06 -0700)]
Merge pull request #4041 from drwells/update-contributing-links

Update video lecture links to point to Colorado State.

7 years agoUpdate video lecture links to point to Colorado State. 4041/head
David Wells [Sun, 5 Mar 2017 23:37:51 +0000 (18:37 -0500)]
Update video lecture links to point to Colorado State.

7 years agoUse Assert, not AssertThrow, with ExcInternalError. 4039/head
David Wells [Sun, 5 Mar 2017 22:56:44 +0000 (17:56 -0500)]
Use Assert, not AssertThrow, with ExcInternalError.

7 years agoMerge pull request #4035 from kronbichler/fix_nonmpi_tests
Timo Heister [Sun, 5 Mar 2017 21:55:15 +0000 (16:55 -0500)]
Merge pull request #4035 from kronbichler/fix_nonmpi_tests

Enable tests to run without MPI

7 years agoEnable tests to run without MPI. 4035/head
Martin Kronbichler [Sun, 5 Mar 2017 19:04:49 +0000 (20:04 +0100)]
Enable tests to run without MPI.

7 years agoMerge pull request #4032 from kronbichler/fix_mpi_tests
Martin Kronbichler [Sun, 5 Mar 2017 17:14:12 +0000 (18:14 +0100)]
Merge pull request #4032 from kronbichler/fix_mpi_tests

Fix multigrid/mpi tests

7 years agoMerge pull request #4029 from kronbichler/fix_test_output_with_fma
Timo Heister [Sun, 5 Mar 2017 16:00:44 +0000 (11:00 -0500)]
Merge pull request #4029 from kronbichler/fix_test_output_with_fma

Add output variants for builds with FMA

7 years agoMerge pull request #4033 from masterleinad/fix_unused_var
Martin Kronbichler [Sun, 5 Mar 2017 15:59:24 +0000 (16:59 +0100)]
Merge pull request #4033 from masterleinad/fix_unused_var

Handle more unused variables and parameters

7 years agoHandle more unused variables and parameters 4033/head
Daniel Arndt [Sun, 5 Mar 2017 15:37:15 +0000 (16:37 +0100)]
Handle more unused variables and parameters

7 years agoFix multigrid mpi tests by better output 4032/head
Martin Kronbichler [Sun, 5 Mar 2017 15:00:15 +0000 (16:00 +0100)]
Fix multigrid mpi tests by better output

7 years agoMerge pull request #4031 from kronbichler/remove_unused_variables
Daniel Arndt [Sun, 5 Mar 2017 15:31:50 +0000 (16:31 +0100)]
Merge pull request #4031 from kronbichler/remove_unused_variables

Remove unused variables

7 years agoRemove unused variables 4031/head
Martin Kronbichler [Sun, 5 Mar 2017 14:35:23 +0000 (15:35 +0100)]
Remove unused variables

7 years agoMerge pull request #4022 from masterleinad/add_operators_blockbase
Daniel Arndt [Sun, 5 Mar 2017 14:05:01 +0000 (15:05 +0100)]
Merge pull request #4022 from masterleinad/add_operators_blockbase

Add MatrixFreeOperators::BlockBase

7 years agochangelog entry and a test for a Stokes operator using MatrixFreeOperatorsBase 4022/head
Daniel Arndt [Sun, 5 Mar 2017 11:57:41 +0000 (12:57 +0100)]
changelog entry and a test for a Stokes operator using MatrixFreeOperatorsBase

7 years agoAdd support for BlockVectors and block operators to MatrixFreeOperators::Base
Daniel Arndt [Sat, 4 Mar 2017 19:34:40 +0000 (20:34 +0100)]
Add support for BlockVectors and block operators to MatrixFreeOperators::Base

7 years agoMerge pull request #4030 from drwells/more-cppcheck
Martin Kronbichler [Sun, 5 Mar 2017 10:24:56 +0000 (11:24 +0100)]
Merge pull request #4030 from drwells/more-cppcheck

Run cppcheck again.

7 years agoMerge pull request #4028 from kronbichler/fix_tests_02
David Wells [Sat, 4 Mar 2017 23:40:28 +0000 (18:40 -0500)]
Merge pull request #4028 from kronbichler/fix_tests_02

Extend test suite for non-threaded build

7 years agoMark a function as static. 4030/head
David Wells [Sat, 4 Mar 2017 22:25:43 +0000 (17:25 -0500)]
Mark a function as static.

This was caught by cppcheck.

7 years agoRemove some unused non-public functions.
David Wells [Sat, 4 Mar 2017 21:54:23 +0000 (16:54 -0500)]
Remove some unused non-public functions.

These were found by cppcheck.

7 years agoMark some header-defined functions as inline.
David Wells [Sat, 4 Mar 2017 21:54:08 +0000 (16:54 -0500)]
Mark some header-defined functions as inline.

7 years agoReduce the scope of some variables.
David Wells [Sat, 4 Mar 2017 21:51:36 +0000 (16:51 -0500)]
Reduce the scope of some variables.

This was caught by cppcheck.

7 years agoRemove some empty destructors.
David Wells [Sat, 4 Mar 2017 21:50:32 +0000 (16:50 -0500)]
Remove some empty destructors.

The compiler can generate these for us.

7 years agoAdd second file output for builds with FMA 4029/head
Martin Kronbichler [Sat, 4 Mar 2017 21:22:50 +0000 (22:22 +0100)]
Add second file output for builds with FMA

7 years agoAdd second binary output for builds with FMA
Martin Kronbichler [Sat, 4 Mar 2017 21:22:32 +0000 (22:22 +0100)]
Add second binary output for builds with FMA

7 years agoAdjust test output on Intel CPUs with FMA enabled.
Martin Kronbichler [Thu, 2 Mar 2017 14:35:30 +0000 (15:35 +0100)]
Adjust test output on Intel CPUs with FMA enabled.

7 years agoAdd additional output for memory consumption test (without threads). 4028/head
Martin Kronbichler [Sat, 4 Mar 2017 20:55:07 +0000 (21:55 +0100)]
Add additional output for memory consumption test (without threads).

7 years agoRelax tolerance a for float zero slightly
Martin Kronbichler [Sat, 4 Mar 2017 20:54:43 +0000 (21:54 +0100)]
Relax tolerance a for float zero slightly

7 years agoAvoid superfluous include file
Martin Kronbichler [Sat, 4 Mar 2017 20:54:16 +0000 (21:54 +0100)]
Avoid superfluous include file

7 years agoRun test with threads only
Martin Kronbichler [Sat, 4 Mar 2017 20:53:56 +0000 (21:53 +0100)]
Run test with threads only

7 years agoMerge pull request #4027 from drwells/remove-extra-typename
Martin Kronbichler [Sat, 4 Mar 2017 19:11:43 +0000 (20:11 +0100)]
Merge pull request #4027 from drwells/remove-extra-typename

Remove some unnecessary typenames.

7 years agoRemove some unnecessary typenames. 4027/head
David Wells [Sat, 4 Mar 2017 17:21:51 +0000 (12:21 -0500)]
Remove some unnecessary typenames.

These types are fully qualified so we do not need to prefix them with
'typename'.

7 years agoMerge pull request #4026 from tjhei/msvc_mat_free_fix
Timo Heister [Sat, 4 Mar 2017 14:59:36 +0000 (09:59 -0500)]
Merge pull request #4026 from tjhei/msvc_mat_free_fix

fix matrix free compilation

7 years agofix matrix free compilation 4026/head
Timo Heister [Sat, 4 Mar 2017 13:19:34 +0000 (08:19 -0500)]
fix matrix free compilation

MSVC complains

7 years agoMerge pull request #4025 from kronbichler/fix_missing_include_nothreads
Timo Heister [Sat, 4 Mar 2017 12:03:06 +0000 (07:03 -0500)]
Merge pull request #4025 from kronbichler/fix_missing_include_nothreads

Add missing include file when compiling without threads.

7 years agoAdd missing include file when compiling without threads. 4025/head
Martin Kronbichler [Sat, 4 Mar 2017 07:27:21 +0000 (08:27 +0100)]
Add missing include file when compiling without threads.

7 years agoMerge pull request #4024 from kronbichler/avoid_compiler_warning
Denis Davydov [Sat, 4 Mar 2017 07:17:20 +0000 (08:17 +0100)]
Merge pull request #4024 from kronbichler/avoid_compiler_warning

Avoid compiler warning without threads

7 years agoMerge pull request #4023 from kronbichler/fix_static_build
Martin Kronbichler [Sat, 4 Mar 2017 06:26:00 +0000 (07:26 +0100)]
Merge pull request #4023 from kronbichler/fix_static_build

Mark functions inline to fix mpi/renumber_cuthill_mckee in static build

7 years agoAvoid compiler warning without threads 4024/head
Martin Kronbichler [Sat, 4 Mar 2017 06:24:46 +0000 (07:24 +0100)]
Avoid compiler warning without threads

7 years agoMark functions inline to fix tests mpi/renumber_cuthill_mckee in static build 4023/head
Martin Kronbichler [Fri, 3 Mar 2017 19:50:21 +0000 (20:50 +0100)]
Mark functions inline to fix tests mpi/renumber_cuthill_mckee in static build

7 years agoMerge branch pull request #4008 from loylick/buildsystem
Matthias Maier [Fri, 3 Mar 2017 18:15:39 +0000 (12:15 -0600)]
Merge branch pull request #4008 from loylick/buildsystem

Merges #4008. Closes #4008.

7 years agocorrected cmake scripts so that they are capable of finding existing PETSC and SLEPC...
alex [Sat, 25 Feb 2017 15:59:36 +0000 (18:59 +0300)]
corrected cmake scripts so that they are capable of finding existing PETSC and SLEPC installations.

Signed-off-by: Matthias Maier <tamiko@43-1.org>
7 years agoMerge pull request #4021 from MathiasMen/VectorizationElasticityKinematics
Denis Davydov [Fri, 3 Mar 2017 11:21:07 +0000 (12:21 +0100)]
Merge pull request #4021 from MathiasMen/VectorizationElasticityKinematics

Vectorization Physics::Elasticity::Kinematics

7 years agoAdded support for vectorization in Physics::Elasticity::Kinematics 4021/head
Mathias Mentler [Fri, 3 Mar 2017 09:41:11 +0000 (10:41 +0100)]
Added support for vectorization in Physics::Elasticity::Kinematics

7 years agoAdded support for vectorization in Physics::Elasticity::Kinematics
Mathias Mentler [Fri, 3 Mar 2017 09:38:02 +0000 (10:38 +0100)]
Added support for vectorization in Physics::Elasticity::Kinematics

7 years agoMerge pull request #4018 from kronbichler/separate_file_tensor_product_kernels
Martin Kronbichler [Fri, 3 Mar 2017 09:19:03 +0000 (10:19 +0100)]
Merge pull request #4018 from kronbichler/separate_file_tensor_product_kernels

Move tensor product kernels from fe_evaluation.h into separate file

7 years agoAdded support for vectorization in Physics::Elasticity::Kinematics
Mathias Mentler [Fri, 3 Mar 2017 09:01:19 +0000 (10:01 +0100)]
Added support for vectorization in Physics::Elasticity::Kinematics

7 years agoAdded support for vectorization in Physics::Elasticity::Kinematics
Mathias Mentler [Fri, 3 Mar 2017 08:58:59 +0000 (09:58 +0100)]
Added support for vectorization in Physics::Elasticity::Kinematics

7 years agoMerge pull request #4020 from bangerth/fix-changelog-2
Jean-Paul Pelteret [Thu, 2 Mar 2017 14:08:19 +0000 (15:08 +0100)]
Merge pull request #4020 from bangerth/fix-changelog-2

Fix the name of a function referenced in a changelog entry.

7 years agoFix the name of a function referenced in a changelog entry. 4020/head
Wolfgang Bangerth [Thu, 2 Mar 2017 14:01:39 +0000 (07:01 -0700)]
Fix the name of a function referenced in a changelog entry.

7 years agoMerge pull request #4019 from bangerth/fix-changelog
Jean-Paul Pelteret [Thu, 2 Mar 2017 13:59:07 +0000 (14:59 +0100)]
Merge pull request #4019 from bangerth/fix-changelog

Fix a changelog entry.

7 years agoFix a changelog entry. 4019/head
Wolfgang Bangerth [Thu, 2 Mar 2017 13:52:54 +0000 (06:52 -0700)]
Fix a changelog entry.

7 years agoMove tensor product kernels from fe_evaluation.h into separate file 4018/head
Martin Kronbichler [Thu, 2 Mar 2017 09:02:27 +0000 (10:02 +0100)]
Move tensor product kernels from fe_evaluation.h into separate file

7 years agoMerge pull request #4017 from drwells/add-stream-flag-restorations
David Wells [Thu, 2 Mar 2017 01:56:44 +0000 (20:56 -0500)]
Merge pull request #4017 from drwells/add-stream-flag-restorations

Restore stream flags after use.

7 years agoMerge pull request #4014 from masterleinad/fix_coverity
David Wells [Thu, 2 Mar 2017 01:55:40 +0000 (20:55 -0500)]
Merge pull request #4014 from masterleinad/fix_coverity

Fix some issues reported by Coverity

7 years agoRestore stream flags after use. 4017/head
David Wells [Wed, 1 Mar 2017 17:55:48 +0000 (12:55 -0500)]
Restore stream flags after use.

This was caught by Coverity.

7 years agoMerge pull request #4007 from drwells/add-diff-execution-check
Wolfgang Bangerth [Wed, 1 Mar 2017 17:42:19 +0000 (10:42 -0700)]
Merge pull request #4007 from drwells/add-diff-execution-check

Check that numdiff and diff can run with very simple input.

7 years agoAdd a simple numdiff relative tolerance test. 4007/head
David Wells [Wed, 1 Mar 2017 14:40:42 +0000 (09:40 -0500)]
Add a simple numdiff relative tolerance test.

This test ensures that we can use numdiff to check differences with a relative
tolerance (i.e., that numdiff is not a symlink to diff).

7 years agoMerge pull request #3995 from davydden/mf_operator_vectortype
Martin Kronbichler [Wed, 1 Mar 2017 13:44:27 +0000 (14:44 +0100)]
Merge pull request #3995 from davydden/mf_operator_vectortype

change MatrixFreeOperators from Number to VectorType template

7 years agoMerge pull request #4016 from kronbichler/fix_transfer_tests_no_mpi
David Wells [Wed, 1 Mar 2017 13:06:59 +0000 (08:06 -0500)]
Merge pull request #4016 from kronbichler/fix_transfer_tests_no_mpi

Recent MG transfer tests do not use MPI -> remove mpi_initlog

7 years agoMerge pull request #4002 from kronbichler/msvc_fix_large_offset
Wolfgang Bangerth [Wed, 1 Mar 2017 13:03:26 +0000 (06:03 -0700)]
Merge pull request #4002 from kronbichler/msvc_fix_large_offset

Fix FEEvaluation path with degree -1 for MSVC compiler

7 years agoMerge pull request #4015 from davydden/parallel_for_start_end
Denis Davydov [Wed, 1 Mar 2017 12:37:00 +0000 (13:37 +0100)]
Merge pull request #4015 from davydden/parallel_for_start_end

extend internal::VectorOperations::parallel_for() to [start,end)

7 years agoRecent MG transfer tests do not use MPI -> remove mpi_initlog 4016/head
Martin Kronbichler [Wed, 1 Mar 2017 12:14:51 +0000 (13:14 +0100)]
Recent MG transfer tests do not use MPI -> remove mpi_initlog

7 years agoFix issues reported by Coverity 4014/head
Daniel Arndt [Tue, 28 Feb 2017 23:56:23 +0000 (00:56 +0100)]
Fix issues reported by Coverity

7 years agoextend internal::VectorOperations::parallel_for() to [start,end) 4015/head
Denis Davydov [Wed, 1 Mar 2017 07:11:30 +0000 (08:11 +0100)]
extend internal::VectorOperations::parallel_for() to [start,end)

7 years agoAdditional tests without the template 4002/head
Martin Kronbichler [Tue, 28 Feb 2017 20:59:50 +0000 (21:59 +0100)]
Additional tests without the template

7 years agoFix FEEvaluation path with degree -1 for MSVC compiler
Martin Kronbichler [Fri, 24 Feb 2017 16:50:41 +0000 (17:50 +0100)]
Fix FEEvaluation path with degree -1 for MSVC compiler

Furthermore, clean up the code path for degree -1 in FE_DGP and FE_QDG0.

7 years agoMerge pull request #4013 from davydden/bugfix/index_within_set
Denis Davydov [Tue, 28 Feb 2017 15:27:57 +0000 (16:27 +0100)]
Merge pull request #4013 from davydden/bugfix/index_within_set

fix IndexSet::index_within_set() for an empty index set

7 years agofix IndexSet::index_within_set() for an empty index set 4013/head
Denis Davydov [Tue, 28 Feb 2017 13:56:01 +0000 (14:56 +0100)]
fix IndexSet::index_within_set() for an empty index set

7 years agoMerge pull request #4003 from bangerth/fix-formatting
David Wells [Mon, 27 Feb 2017 19:34:24 +0000 (14:34 -0500)]
Merge pull request #4003 from bangerth/fix-formatting

Improve formatting of figures.

7 years agoMerge pull request #4010 from masterleinad/fix_intel_tests
Martin Kronbichler [Sun, 26 Feb 2017 19:08:05 +0000 (20:08 +0100)]
Merge pull request #4010 from masterleinad/fix_intel_tests

Suppress warnings for pointless comparison

7 years agoSuppress warnings for pointless comparison 4010/head
Daniel Arndt [Sun, 26 Feb 2017 17:16:59 +0000 (18:16 +0100)]
Suppress warnings for pointless comparison

7 years agoMerge pull request #4009 from masterleinad/fix_intel_tests
Daniel Arndt [Sun, 26 Feb 2017 17:12:54 +0000 (18:12 +0100)]
Merge pull request #4009 from masterleinad/fix_intel_tests

Fix tests failing due to round-off inconsistency.

7 years agoMake hp/create_laplace_matrix tests pass for Intel-17 4009/head
Daniel Arndt [Sun, 26 Feb 2017 14:19:11 +0000 (15:19 +0100)]
Make hp/create_laplace_matrix tests pass for Intel-17

7 years agoMake bits/fe_tools pass for Intel-17
Daniel Arndt [Sun, 26 Feb 2017 14:32:04 +0000 (15:32 +0100)]
Make bits/fe_tools pass for Intel-17

7 years agoAllow to customize the values used in test_mode
Daniel Arndt [Sun, 26 Feb 2017 14:31:49 +0000 (15:31 +0100)]
Allow to customize the values used in test_mode

7 years agoMerge pull request #4006 from loylick/mpiupdate
Wolfgang Bangerth [Sun, 26 Feb 2017 15:36:35 +0000 (08:36 -0700)]
Merge pull request #4006 from loylick/mpiupdate

removed requirement of MPI support to compile with SLEPC

7 years agoreindenting #include 4006/head
alex [Sat, 25 Feb 2017 19:30:16 +0000 (22:30 +0300)]
reindenting #include

7 years agoMerge pull request #4005 from loylick/vectorupdate
David Wells [Sat, 25 Feb 2017 18:57:54 +0000 (13:57 -0500)]
Merge pull request #4005 from loylick/vectorupdate

fix for read_write_vector.templates.h to compile under Windows

7 years agoadjust unit test 3995/head
Denis Davydov [Sat, 25 Feb 2017 17:22:36 +0000 (18:22 +0100)]
adjust unit test

7 years agoadjust step-37
Denis Davydov [Sat, 25 Feb 2017 17:19:17 +0000 (18:19 +0100)]
adjust step-37

7 years agoCheck that numdiff and diff can run with very simple input.
David Wells [Sat, 25 Feb 2017 16:18:28 +0000 (11:18 -0500)]
Check that numdiff and diff can run with very simple input.

This commit adds a check to ensure that calling diff or numdiff does not hang
forever: if it does hang (or cannot be run at all) then we cannot run the test
suite, so bail out.

7 years agoremoved requirement of MPI support to compile with SLEPC
alex [Sat, 25 Feb 2017 14:59:56 +0000 (17:59 +0300)]
removed requirement of MPI support to compile with SLEPC

7 years agofix for read_write_vector.templates.h to compile under Windows 4005/head
alex [Sat, 25 Feb 2017 14:44:27 +0000 (17:44 +0300)]
fix for read_write_vector.templates.h to compile under Windows

7 years agoMerge pull request #4004 from bangerth/declare-specializations
Daniel Arndt [Sat, 25 Feb 2017 10:08:21 +0000 (11:08 +0100)]
Merge pull request #4004 from bangerth/declare-specializations

Forward declare two explicit specializations.

7 years agoForward declare two explicit specializations. 4004/head
Wolfgang Bangerth [Fri, 24 Feb 2017 19:44:12 +0000 (12:44 -0700)]
Forward declare two explicit specializations.

7 years agoImprove formatting of figures. 4003/head
Wolfgang Bangerth [Fri, 24 Feb 2017 19:43:09 +0000 (12:43 -0700)]
Improve formatting of figures.

The previous way had the top of the second picture run into the bottom
of the first one. Since both are meshes, it was hard to see what was
going on.

7 years agoMerge pull request #4001 from masterleinad/rm_explicit_instant
Timo Heister [Fri, 24 Feb 2017 15:43:56 +0000 (10:43 -0500)]
Merge pull request #4001 from masterleinad/rm_explicit_instant

Remove redundant explicit instantiation

7 years agoMerge pull request #4000 from jppelteret/changelog_01
Bruno Turcksin [Fri, 24 Feb 2017 14:20:02 +0000 (09:20 -0500)]
Merge pull request #4000 from jppelteret/changelog_01

Add changelog entry for a new code gallery example.

7 years agoAdd changelog entry for a new code gallery example. 4000/head
Jean-Paul Pelteret [Fri, 24 Feb 2017 14:16:18 +0000 (15:16 +0100)]
Add changelog entry for a new code gallery example.

This adds a news item for the new code gallery example titled
"Quasi-Static Finite-Strain Quasi-incompressible Visco-elasticity".

7 years agoMerge pull request #3999 from masterleinad/fix_linear_operator_intel
Timo Heister [Fri, 24 Feb 2017 13:26:04 +0000 (08:26 -0500)]
Merge pull request #3999 from masterleinad/fix_linear_operator_intel

Fix linear_operator_08 for Intel-17

7 years agoRemove redundant explicit instantiation 4001/head
Daniel Arndt [Fri, 24 Feb 2017 10:46:37 +0000 (11:46 +0100)]
Remove redundant explicit instantiation

7 years agoFix linear_operator_08 3999/head
Daniel Arndt [Thu, 23 Feb 2017 18:26:15 +0000 (19:26 +0100)]
Fix linear_operator_08

7 years agoMerge pull request #3998 from masterleinad/fix_boost_intel17
Wolfgang Bangerth [Fri, 24 Feb 2017 02:52:46 +0000 (19:52 -0700)]
Merge pull request #3998 from masterleinad/fix_boost_intel17

Fix bundled boost for Intel-17

7 years agoFix bundled boost for Intel-17 3998/head
Daniel Arndt [Fri, 24 Feb 2017 00:40:43 +0000 (01:40 +0100)]
Fix bundled boost for Intel-17

7 years agochange MatrixFreeOperators from Number to VectorType template
Denis Davydov [Thu, 23 Feb 2017 16:00:52 +0000 (17:00 +0100)]
change MatrixFreeOperators from Number to VectorType template

7 years agoMerge pull request #3994 from kronbichler/documentation_matrix_free_tutorial
Denis Davydov [Thu, 23 Feb 2017 08:26:34 +0000 (09:26 +0100)]
Merge pull request #3994 from kronbichler/documentation_matrix_free_tutorial

Improve description of matrix-free tutorials

7 years agoImprove description of matrix-free tutorials 3994/head
Martin Kronbichler [Thu, 23 Feb 2017 07:07:27 +0000 (08:07 +0100)]
Improve description of matrix-free tutorials


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