update projection of the small matrix

NLESC-JCER / Fortran_Davidson

Davidson eigensolver implemented in Fortran

Apache License 2.0

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update projection of the small matrix #9

Closed NicoRenaud closed 5 years ago

NicoRenaud commented 5 years ago

change the full matrix projection to an update procedure. Only the mat vect multiplication with the new vectors are recomputed and appended to the projected matrix. At restart we do a full projection again.