Marcel-Rodekamp / NSL

Nanosystem Simulation Library (NSL) implements statistical simulations for systems on the nanoscale
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Feature/hubbard preconditioner #171

Closed petio9671 closed 1 month ago

petio9671 commented 3 months ago

This branch was created off of feature/TwoBodyCorrelators branch. I implemented a preconditioned CG.

The possible constructors include general and/or fermion matrix type arguments.

The ideas that I had for improvement did not work well but we can experiment with other preconditioners.