Nicolas Tancogne-Dejean requested to merge prefilter_phase into develop May 27, 2021

Description

The prefilter preconditioner now sets the phase to the Bloch wavefunction before performing the derivatives in the batchified case.

News snippet

Improve prefilter preconditioner for RMMDIIS.

Checklist

I have checked that my code follows the Octopus coding standards
I have added tests for all the new features added in this request.