PERF : MDEIM for nonlinear term is sooooo slow

[KikeM]

I wonder what is going on there ...

It's true that there are three nested loops:

• Parameter space
  • Timestemps
  • Basis vectors

Perhaps I could combine the latter two and use multiprocessing.

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That being said, it has more or less acceptable times (30 mins por 10 parameters for each ROM/DEIM/MDEIM) to get some results and pour them in a document.

[KikeM]

It was slow because the basis was orthogonal and the trilinear form well ... linear haha.

Hence the SVD could not compress.