=> clearer if formulations do not involve I[]

can't use -nep_monitor_all :temp_eigenvalues.txt because onelab tries to save temp_eigenvalues.txt inside the bundle

at once...

-st_pc_factor_mat_solver_package

This reverts commit 44ad8846.

This reverts commit 48aff62b.

This reverts commit b139a8f4.

This reverts commit 1445cdec.

This reverts commit dc040487.

as in the convergence section of the paper

-nep_nleigs_rational will become -nep_rational