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JuliaSmoothOptimizers / HSL.jl

Julia interface to the HSL Mathematical Software Library
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Use the C interface of hsl_ma57 #182

Open amontoison opened 1 year ago

amontoison commented 1 year ago
goulart-paul commented 1 year ago

Is there any update to this issue? Specifically, I would really like to use ma57_get_factors, but can't get it to work on any branch. It seems to want a ma57lfd_ symbol that doesn't appear in the HSL binaries.

Asking because the package is occasionally producing factorisations for me that appear to have a lot more nonzeros in the factors than I think should be there, but it's quite hard to debug without being able to query for the factors directly.

amontoison commented 1 year ago

ma57lfd_ was available with a patch for the Fortran code of ma57 developed by Dominique. By default we can't use these routines. With the lastest releases of hsl_ma57, they added the features that we wanted but only in the C interface.

So, we need to rewrite our Julia interface for ma57 bacause we interfaced it before that they added the C interface.

amontoison commented 12 months ago

@goulart-paul I found a fix for ma57_get_factors, we will be able to use this function with the next release of JuliaHSL / libHSL. If you don't want to wait, send me an email with your platform (Base.BinaryPlatforms.host_triplet()).

amontoison commented 10 months ago

@goulart-paul ma57_get_factors works with the HSL_jll.jl provided by libHSL. I was released this week. :tada: