Documentation updated

Doc/release-notes

@@ -3,6 +3,7 @@ New in dev branch:
   * Stress for noncolinear case
   * QE can be compiled on Windows 10 using PGI v.19.10 Community Edition
     configure works, except FoX: use script install/build_fox_with_pgi.sh
+  * ParO and PPCG iterative diagonalization algorithms
   
 Fixed in dev branch:
   * PW: Restart from interrupted calculations  simplified. As a side effect,
@@ -11,6 +12,8 @@ Fixed in dev branch:
   * Fermi energy incorrectly written to xml file in 'bands' calculation
     (did not affect results, just Fermi energy position in band plotting)
     Also: Fermi energy always written to xml file, also for insulators
+  * Phonon code in the noncolinear case with magnetization ("domag" case)
+    now works properly - courtesy Andrea Urru and Andrea Dal Corso.
 
 Incompatible changes in dev branch:
   * Conversion from 1D FFT real-space index to 3D positions moved into a

PW/Doc/INPUT_PW.def

@@ -2005,25 +2005,16 @@ input_description -distribution {Quantum Espresso} -package PWscf -program pw.x
                     (a little bit) more robust.
                 }
 
-                opt -val {'cg-serial', 'david-serial'} {
-                    OBSOLETE, use @b {-ndiag 1} instead.
-                    The subspace diagonalization in Davidson is performed
-                    by a fully distributed-memory parallel algorithm on
-                    4 or more processors, by default. The allocated memory
-                    scales down with the number of procs. Procs involved 
-                    in diagonalization can be changed with command-line
-                    option @b -ndiag @i N. On multicore CPUs it is often
-                    convenient to let just one core per CPU to work 
-                    on linear algebra.
+                opt -val {'ppcg'} {
+                    PPCG iterative diagonalization
+                }
+
+                opt -val {'paro', 'ParO'} {
+                    ParO iterative diagonalization
                 }
             }
         }
 
-        var ortho_para -type INTEGER { 
-            default { 0 }
-            status { OBSOLETE: use command-line option @tt {"-ndiag XX"} instead  }
-        }
-
         var diago_thr_init -type REAL {
             info {
                 Convergence threshold (ethr) for iterative diagonalization

PW/src/bp_qvan3.f90

@@ -18,7 +18,6 @@ SUBROUTINE qvan3( iv, jv, is, qg, ylm_k, qr )
       !
       USE kinds,       ONLY: DP
       USE ions_base,   ONLY: ntyp => nsp
-      USE us,          ONLY: dq, qrad
       USE uspp_param,  ONLY: lmaxq, nbetam
       USE uspp,        ONLY: nlx, lpl, lpx, ap, indv, nhtol, nhtolm
       !