cgsolve_all parallelizes linear system solution over bands and distributes
auxiliary working memory. in/out dpsi and d0psi arrays are not distributed
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@13819 c92efa57-630b-4861-b058-cf58834340f0
good idea to call "h_psi" a routine that does something related to but
different from H\psi. Corrected a few grossly wrong comments.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@12440 c92efa57-630b-4861-b058-cf58834340f0