Unreleased

Version 0.2.0

Changed

Improved variables names.
Removed unnecessary ritz_vectors calculations.
Optimized the DPR for the free version #34.
Removed recomputation of the residues #34.

Version 0.1.0

Changed

Update the whole projection matrix after adding some correction vector. Replace the block update schema.

Fixed

Fixed several bugs in the matrix free implementation.

Version 0.0.5

New

Select the initial orthonormal basis set based on the lowest diagonal elements of the matrix

Version 0.0.4

changed

For the Matrix-free implementation, the function that computes the target matrix on the fly, was replaced by another function representing the action of a matrix-operator over a vector

Version 0.0.3

Changed

split the dense and matrix free into modules
Moved the lapack calls to their own module
Moved the array utilities to their own module

Deleted

Removed the DPR vs GJD benchmark

Version 0.0.2

Added

Algorithm for the Generalized eigenvalue problem using the Davidson method.
Matrix free implementation of the Davidson method using the DPR correction.
Tests for the lapack wrappers.

Changed

Append the orthonormalized correction vector to the previous subspace by computing only the matrix elements involved with the new correction vector.
Used as maximum dimension of the subspace 10 times the number of requested eigenvalues.

Version 0.0.1

Dependencies

Fortran compiler >= 6.0 (supporting submodules and move_alloc)
lapack or MKL.
Cmake >= 3.0