minpack

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Port features from SciPy's minpack version

6

The version is here: https://github.com/scipy/scipy/tree/a0535bee9d4da58e6d41e963e907c1b9f7684585/scipy/optimize/minpack and we need to check to see what changes they have made to the original code and port those to this version. Towards #14.

certik

Allow passing of user data for callback procedure

17

Proposal to allow passing user data through minpack as unlimited polymorphic object. This approach has the advantage of mostly keeping the API unchanged, however users have to adjust their objective...

awvwgk

Example fails with nvfortran

1

Nvidia's Fortran compiler can compile minpack, however it segfaults in the examples ``` ❯ nvfortran --version nvfortran 22.1-0 64-bit target on x86-64 Linux -tp haswell NVIDIA Compilers and Tools Copyright...

awvwgk

Create documentation for C bindings

1

The C bindings are currently not documented outside of the comments in the header. Maybe we can make use of doxygen to create API docs for those.

awvwgk

The documentation provided with the Python bindings should be collected and deployed together with the Fortran API docs.

awvwgk

Compatibility of Python bindings with Numba

1

The Python bindings should be Numba compatible. - [CFFI with Numba](https://numba.pydata.org/numba-doc/latest/reference/pysupported.html#cffi)

awvwgk

Valgrind reports errors for tests

2

Valgrind says that some of the tests have errors. For example `test_hybrd` ``` ==7124== ==7124== HEAP SUMMARY: ==7124== in use at exit: 0 bytes in 0 blocks ==7124== total heap...

Nicholaswogan

Use LAPACK for the QR factorization

7

Currently the Levenberg-Marquardt routine in MINPACK calls a "home-brewed" QR factorization derived from LINPACK: https://github.com/jacobwilliams/minpack/blob/b4e671d1692b6f9eb048ba920e97f8a4eda195e3/src/minpack.f90#L2578 This is understandable since MINPACK (released in 1980) precedes LAPACK (released in 1992) by more...

ivan-pi

MINPACK-2 test problems

3

I think these are test problems for MINPACK: https://ftp.mcs.anl.gov/pub/MINPACK-2/tprobs/ Need to modernize them and add them to the unit tests.

jacobwilliams

Comparison to other least-squares solvers

13

While `minpack` is an important package among the Fortran legacy codes it's age is apparent. The [Ceres Solver](http://ceres-solver.org/features.html) is a non-linear least squares package written in C++ and developed at...

ivan-pi