diff --git a/base/modules/psb_base_mat_mod.f03 b/base/modules/psb_base_mat_mod.f03
index 2af96e56..77db65e9 100644
--- a/base/modules/psb_base_mat_mod.f03
+++ b/base/modules/psb_base_mat_mod.f03
@@ -483,7 +483,10 @@ contains
     a%unitd     = b%unitd
     a%upper     = b%upper
     a%sorted    = b%sorted
-    a%aux       = b%aux
+    if (allocated(b%aux)) then 
+      allocate(a%aux(size(b%aux)))
+      a%aux(:)       = b%aux(:)
+    end if
     return
 
   end subroutine base_cp_from
@@ -507,7 +510,10 @@ contains
     a%unitd     = b%unitd
     a%upper     = .not.b%upper
     a%sorted    = .false.
-    a%aux       = b%aux 
+    if (allocated(b%aux)) then 
+      allocate(a%aux(size(b%aux)))
+      a%aux(:)       = b%aux(:)
+    end if
     
     return
     
diff --git a/base/modules/psb_d_base_mat_mod.f03 b/base/modules/psb_d_base_mat_mod.f03
index 7c1fefe0..de3190d5 100644
--- a/base/modules/psb_d_base_mat_mod.f03
+++ b/base/modules/psb_d_base_mat_mod.f03
@@ -762,11 +762,9 @@ contains
       nb = a%get_ncols()  ! Should this be jmax_ ?? 
     endif
     call b%allocate(mb,nb)
-
     call a%csget(imin_,imax_,nzout,b%ia,b%ja,b%val,info,&
          & jmin=jmin_, jmax=jmax_, append=.false., &
          & nzin=nzin, rscale=rscale_, cscale=cscale_)
-
     if (info /= 0) goto 9999
 
     call b%set_nzeros(nzin+nzout)
diff --git a/base/modules/psb_d_mat_mod.f03 b/base/modules/psb_d_mat_mod.f03
index c50b94ef..d58f0a57 100644
--- a/base/modules/psb_d_mat_mod.f03
+++ b/base/modules/psb_d_mat_mod.f03
@@ -1332,7 +1332,6 @@ contains
     Integer :: err_act
     character(len=20)  :: name='csclip'
     logical, parameter :: debug=.false.
-    type(psb_d_coo_sparse_mat), allocatable  :: acoo
 
     info = 0
     call psb_erractionsave(err_act)
@@ -1341,9 +1340,8 @@ contains
       call psb_errpush(info,name)
       goto 9999
     endif
-
-    allocate(acoo,stat=info)    
-    if (info == 0) call a%a%csclip(b,info,&
+    write(0,*) 'b_csclip :',a%get_fmt()
+    call a%a%csclip(b,info,&
        & imin,imax,jmin,jmax,rscale,cscale)
     if (info /= 0) goto 9999 
 
diff --git a/base/serial/f03/psb_c_coo_impl.f03 b/base/serial/f03/psb_c_coo_impl.f03
index 51204b29..726d6381 100644
--- a/base/serial/f03/psb_c_coo_impl.f03
+++ b/base/serial/f03/psb_c_coo_impl.f03
@@ -1150,7 +1150,10 @@ subroutine c_coo_csgetptn_impl(imin,imax,a,nz,ia,ja,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
@@ -1422,7 +1425,10 @@ subroutine c_coo_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
diff --git a/base/serial/f03/psb_c_csr_impl.f03 b/base/serial/f03/psb_c_csr_impl.f03
index f72c1b78..e415d8e1 100644
--- a/base/serial/f03/psb_c_csr_impl.f03
+++ b/base/serial/f03/psb_c_csr_impl.f03
@@ -1279,7 +1279,10 @@ subroutine c_csr_csgetptn_impl(imin,imax,a,nz,ia,ja,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
@@ -1452,7 +1455,10 @@ subroutine c_csr_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
diff --git a/base/serial/f03/psb_d_coo_impl.f03 b/base/serial/f03/psb_d_coo_impl.f03
index a8875add..7abf5941 100644
--- a/base/serial/f03/psb_d_coo_impl.f03
+++ b/base/serial/f03/psb_d_coo_impl.f03
@@ -950,7 +950,10 @@ subroutine d_coo_csgetptn_impl(imin,imax,a,nz,ia,ja,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
@@ -1222,7 +1225,10 @@ subroutine d_coo_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
diff --git a/base/serial/f03/psb_d_csr_impl.f03 b/base/serial/f03/psb_d_csr_impl.f03
index 5aa25576..9e2b110f 100644
--- a/base/serial/f03/psb_d_csr_impl.f03
+++ b/base/serial/f03/psb_d_csr_impl.f03
@@ -809,7 +809,7 @@ subroutine d_csr_cssm_impl(alpha,a,x,beta,y,info,trans)
   real(psb_dpk_), allocatable :: tmp(:,:)
   logical   :: tra
   Integer :: err_act
-  character(len=20)  :: name='d_base_cssm'
+  character(len=20)  :: name='d_csr_cssm'
   logical, parameter :: debug=.false.
 
   info = 0
@@ -1087,7 +1087,10 @@ subroutine d_csr_csgetptn_impl(imin,imax,a,nz,ia,ja,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
@@ -1163,7 +1166,7 @@ contains
     integer, optional                    :: iren(:)
     integer  :: nzin_, nza, idx,i,j,k, nzt, irw, lrw
     integer  :: debug_level, debug_unit
-    character(len=20) :: name='coo_getrow'
+    character(len=20) :: name='csr_getptn'
 
     debug_unit  = psb_get_debug_unit()
     debug_level = psb_get_debug_level()
@@ -1248,7 +1251,7 @@ subroutine d_csr_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
 
   call psb_erractionsave(err_act)
   info = 0
-
+  
   if (present(jmin)) then
     jmin_ = jmin
   else
@@ -1260,7 +1263,10 @@ subroutine d_csr_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
diff --git a/base/serial/f03/psb_s_coo_impl.f03 b/base/serial/f03/psb_s_coo_impl.f03
index e79517a9..5e7f7851 100644
--- a/base/serial/f03/psb_s_coo_impl.f03
+++ b/base/serial/f03/psb_s_coo_impl.f03
@@ -948,7 +948,10 @@ subroutine s_coo_csgetptn_impl(imin,imax,a,nz,ia,ja,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     appens_=append
@@ -1220,7 +1223,10 @@ subroutine s_coo_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     appens_=append
diff --git a/base/serial/f03/psb_s_csr_impl.f03 b/base/serial/f03/psb_s_csr_impl.f03
index 586a4118..7867eb0d 100644
--- a/base/serial/f03/psb_s_csr_impl.f03
+++ b/base/serial/f03/psb_s_csr_impl.f03
@@ -1098,7 +1098,10 @@ subroutine s_csr_csgetptn_impl(imin,imax,a,nz,ia,ja,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     appens_=append
@@ -1271,7 +1274,10 @@ subroutine s_csr_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     appens_=append
diff --git a/base/serial/f03/psb_z_coo_impl.f03 b/base/serial/f03/psb_z_coo_impl.f03
index 57b73311..6d761996 100644
--- a/base/serial/f03/psb_z_coo_impl.f03
+++ b/base/serial/f03/psb_z_coo_impl.f03
@@ -1150,7 +1150,10 @@ subroutine z_coo_csgetptn_impl(imin,imax,a,nz,ia,ja,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
@@ -1422,7 +1425,10 @@ subroutine z_coo_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
diff --git a/base/serial/f03/psb_z_csr_impl.f03 b/base/serial/f03/psb_z_csr_impl.f03
index e026bbdd..1a4ee086 100644
--- a/base/serial/f03/psb_z_csr_impl.f03
+++ b/base/serial/f03/psb_z_csr_impl.f03
@@ -1279,7 +1279,10 @@ subroutine z_csr_csgetptn_impl(imin,imax,a,nz,ia,ja,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append
@@ -1452,7 +1455,10 @@ subroutine z_csr_csgetrow_impl(imin,imax,a,nz,ia,ja,val,info,&
     jmax_ = a%get_ncols()
   endif
 
-  if ((imax<imin).or.(jmax_<jmin_)) return
+  if ((imax<imin).or.(jmax_<jmin_)) then 
+    nz = 0
+    return
+  end if
 
   if (present(append)) then
     append_=append