Markus Blatt authored 4 months ago and Christoph Grüninger committed 1 month ago

find_package(module) will fail if the directory set with module_DIR
does not contain CMake configuration file.

Hence the current approach requires that there are pkgconfig files
installed and found for each module to be used.

With this change we fall back to installed modules if the directory
does not contain any Cmake configuration files.

This fixes problems with using OPM as DUNE modules (in Debian) which
stopped shipping broken pkgconf file 2023-09

Add preprocessor macro DUNE_ASSUME

See merge request !1346

IsDenseMatrix for transposed matrix-view

See merge request !1496

[cleanup] Remove old code in Dune::Timer

See merge request !1504

Santiago Ospina De Los Ríos authored 2 months ago and Christoph Grüninger committed 1 month ago

Storing duration in doubles is sub-optimal as each cast may incur in truncation.
Accumulations may also truncate the value further.
Using the native value preserves the duration unit user request its value in seconds.

Use duration_cast instead of division:
Interestingly, dividing by 1.0s yields a different (slightly longer) assembly code than when making an explicit cast to seconds.
The difference seems to me is the cast manages to generate SEE vector registers/instructions.

Carsten Gräser authored 2 months ago and Christoph Grüninger committed 1 month ago

`Dune::Timer` includes two alternative implementations
for measuring time. Historically one was based on `getrusage()`
and the other one on `std::clock()`. The former was the default
and the latter could be enabled by defining a macro. Both in fact
measured the time spend computing by the process.

In `fa43f4bf` the default code path was changed from
`getrusage()` to `std::chrono::high_resolution_clock::now()`
while `std::clock()` could still be enabled by the macro.
This was in fact a breaking change because the new default
version measures the elapsed real time.

This patch removed the non-default version based on `std::clock` because:

* The breaking change happened almost 11 years so one can consider the
  new behavior the established 'correct' version.
* The macro switch was neither documented nor tested.
* Setting the macro manually in user code is error prone.
* Both versions do completely different things leading to
  different measurements. It's not even clear that one
  produces larger numbers in general:
  `std::clock` adds up time spend computing in all threads of the
  process. Thus time in concurrent threads is added up, while
  the time a thread is sleeping is not counted.

There a minor grain of salt: The documentation still documented
the old behaviour and instead of 'fixing' the code this patch
adjusts the documentation to established reality.

Fix wrong license in build system doc

See merge request !1508

Move build system doc license to another file

See merge request !1507

More constexpr!

See merge request !1459

Santiago Ospina De Los Ríos authored 5 months ago and Christoph Grüninger committed 1 month ago

Add constexpr qualifiers on many functions
Add constexpr backport versions of std::abs and std::sqrt

Install libraries in root build path instead on project build path

See merge request !1467

fix some issues with deprecations for pypi packaging

See merge request !1503

Ignore unused variables in debugaligntest

See merge request !1505

Add preprocessor macro DUNE_FORCE_INLINE

See merge request !1502

Add implementation of bit_width to big unsigned int

See merge request !1468

Replace integerSequenceEntry by get

See merge request !1443

Make conjugateComlex and sign constexpr

See merge request !1498

Provide library utilities for the three way comparison operator <=>

See merge request !1495

Add Number concept in terms of IsNumber

See merge request !1493

[dunecontrol] Module without CMakeLists.txt next to dune.module is installed

Closes #399

See merge request !1474

Add concept indirectly_copyable to constrain the DenseMatrixAssigner

See merge request !1492

Set default include directories in targets generated by duneproject

See merge request !1497

Markus Blatt authored 4 months ago and Simon Praetorius committed 3 months ago

The decision whether a module is installed is usually based on whether
pkgconfig was able to find it. If the DUNE module does not ship  a
pkgconf file or pkgconf is missing, then dunecontrol tries to build
this installed modules, too. That fails miserably.

With this commit we add a check at the end that checks whether
there is a CMakeLists.txt file in the source directory of the
module. This directory is where the dune.module file was found. If
there is none we also assume that the module is installed and do not
try to build it.

[cmake] Require linked libs through find_dependency

See merge request !1464