I needed 3x3 test matrices, and this was the easiest way to produce
them. It uses the same algorithm as the 4x4 generator written in C.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>

This reverts commit efa0979c.

The tag is no longer needed.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Just for testing Gitlab.fd.o's new home temporarily.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

According to Gitlab docs, [] should be used.

When the container image was built in a pipeline, 'reuse' in the testing
stage complained that container-build-report.xml is not licensed. That
file should not even be there. Maybe this change helps?

Signed-off-by: Pekka Paalanen <pq@iki.fi>

By four years. Maybe this fixes my CI breakage.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

VScode clangd plugin seems to create this.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Building graphene requires Meson >= 1.0. Instead of playing with pip3,
which in later versions requires different handling (venv), just upgrade
whole Debian. That way I get both Meson and REUSE from Debian packages,
and no need for pip3.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

*Every* file needs a license.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Gitlab upgrades broke this, don't know when.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

When using VSCode and clangd, I symlink that file from
my build directory here.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

The link was 404.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>

This is an easy tool for generating hard-coded test material for matrix
inversion with parametrized degree of difficulty.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>

It is done.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Gitlab stretches it really big on a markdown page otherwise.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Makes the front page less cluttered.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Explains how the precision testing works.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Trying to keep the "front page" shorter and more to the point.

Also link to the contributing doc.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

DCO is included verbatim for convenience, but unfortunately it needs
these hacks to make 'reuse lint' happy. This approach was suggested in
https://github.com/fsfe/reuse-tool/issues/261#issuecomment-704353367



Signed-off-by: Pekka Paalanen <pq@iki.fi>

CI does not do this for us, it has some cached files.

This does not delete already cloned subprojects, because those were
cloned into the source tree by Meson, not into the build tree.

Fixes: #1

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Debian ships blas.pc, which is enough for finding cblas.h.

Fedora 33 ships blas.pc which is not good for finding cblas.h.

Fedora 33 ships cblas.pc which is good for cblas.h

Debian does not ship cblas.pc.

Try to cope with this difference.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

On Fedora 33 cblas.h was not found. Since glue-gold.c uses BLAS and
LAPACK directly, add both deps.

Fixes: a643e0b7

Signed-off-by: Pekka Paalanen <pq@iki.fi>

../src/fourbyfour-bench-precision.c: In function ‘fbfb_operation_precision’:
../src/fourbyfour-bench-precision.c:129:5: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (ret == FBFB_INVERSION_RESULT_NOT_INVERTIBLE) {
     ^
../src/fourbyfour-bench-precision.c:99:29: note: ‘ret’ was declared here
  enum fbfb_inversion_result ret;
                             ^~~

Needs certain optimization flags enabled to hit.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

This makes 'reuse lint' happy, see https://reuse.software

 .

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Does not test the correctness of results, but at least checks if the
programs fail hard. Code test coverage++.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Less iterations means less spam when testing verbose mode.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

So we can test --help in test suite without a failure.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

This will make the test suite finish faster, when adding this program
there.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Makes help more useful.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Signed-off-by: Pekka Paalanen <pq@iki.fi>

This allows graphene to be benchmarked.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

Basic check to ensure the fundamentals are correct.

Signed-off-by: Pekka Paalanen <pq@iki.fi>

This should read much better.

Signed-off-by: Pekka Paalanen <pq@iki.fi>