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NLESC-JCER / Fortran_Davidson

Davidson eigensolver implemented in Fortran
Apache License 2.0
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update and GS #41

Open NicoRenaud opened 4 years ago

NicoRenaud commented 4 years ago

We should replace the QR by a GS ortho and do an update of the projected matrix. That speeds up the code quite a bit for the C++ implementation