diff --git a/base/serial/impl/psb_c_base_mat_impl.f90 b/base/serial/impl/psb_c_base_mat_impl.f90
index f70adb1c..64545a65 100644
--- a/base/serial/impl/psb_c_base_mat_impl.f90
+++ b/base/serial/impl/psb_c_base_mat_impl.f90
@@ -514,7 +514,35 @@ subroutine psb_c_base_transc_2mat(a,b)
   class(psb_c_base_sparse_mat), intent(out) :: a
   class(psb_base_sparse_mat), intent(in)   :: b
 
-  call a%transc(b) 
+  type(psb_c_coo_sparse_mat) :: tmp
+  integer err_act, info
+  character(len=*), parameter :: name='c_base_transc'
+
+  call psb_erractionsave(err_act)
+
+  info = psb_success_
+  select type(b)
+  class is (psb_c_base_sparse_mat)
+    call b%cp_to_coo(tmp,info)
+    if (info == psb_success_) call tmp%transc()
+    if (info == psb_success_) call a%mv_from_coo(tmp,info)
+  class default
+    info = psb_err_invalid_dynamic_type_
+  end select
+  if (info /= psb_success_) then 
+    call psb_errpush(info,name,a_err=b%get_fmt(),i_err=(/1,0,0,0,0/))
+    goto 9999
+  end if
+  call psb_erractionrestore(err_act) 
+
+  return
+9999 continue
+  if (err_act /= psb_act_ret_) then
+    call psb_error()
+  end if
+
+  return
+
 end subroutine psb_c_base_transc_2mat
 
 subroutine psb_c_base_transp_1mat(a)
@@ -556,8 +584,31 @@ subroutine psb_c_base_transc_1mat(a)
   implicit none 
 
   class(psb_c_base_sparse_mat), intent(inout) :: a
+  type(psb_c_coo_sparse_mat) :: tmp
+  integer :: err_act, info
+  character(len=*), parameter :: name='c_base_transc'
+
+  call psb_erractionsave(err_act)
+  info = psb_success_
+  call a%mv_to_coo(tmp,info)
+  if (info == psb_success_) call tmp%transc()
+  if (info == psb_success_) call a%mv_from_coo(tmp,info)
+
+  if (info /= psb_success_) then 
+    info = psb_err_missing_override_method_ 
+    call psb_errpush(info,name,a_err=a%get_fmt())
+    goto 9999
+  end if
+  call psb_erractionrestore(err_act) 
+
+  return
+9999 continue
+  if (err_act /= psb_act_ret_) then
+    call psb_error()
+  end if
+
+  return
 
-  call a%transc() 
 end subroutine psb_c_base_transc_1mat
 
 
diff --git a/base/serial/impl/psb_z_base_mat_impl.f90 b/base/serial/impl/psb_z_base_mat_impl.f90
index a783fd7e..822de2b5 100644
--- a/base/serial/impl/psb_z_base_mat_impl.f90
+++ b/base/serial/impl/psb_z_base_mat_impl.f90
@@ -514,8 +514,35 @@ subroutine psb_z_base_transc_2mat(a,b)
 
   class(psb_z_base_sparse_mat), intent(out) :: a
   class(psb_base_sparse_mat), intent(in)   :: b
+  type(psb_z_coo_sparse_mat) :: tmp
+  integer err_act, info
+  character(len=*), parameter :: name='z_base_transc'
+
+  call psb_erractionsave(err_act)
+
+  info = psb_success_
+  select type(b)
+  class is (psb_z_base_sparse_mat)
+    call b%cp_to_coo(tmp,info)
+    if (info == psb_success_) call tmp%transc()
+    if (info == psb_success_) call a%mv_from_coo(tmp,info)
+  class default
+    info = psb_err_invalid_dynamic_type_
+  end select
+  if (info /= psb_success_) then 
+    call psb_errpush(info,name,a_err=b%get_fmt(),i_err=(/1,0,0,0,0/))
+    goto 9999
+  end if
+  call psb_erractionrestore(err_act) 
+
+  return
+9999 continue
+  if (err_act /= psb_act_ret_) then
+    call psb_error()
+  end if
+
+  return
 
-  call a%transc(b) 
 end subroutine psb_z_base_transc_2mat
 
 subroutine psb_z_base_transp_1mat(a)
@@ -557,8 +584,31 @@ subroutine psb_z_base_transc_1mat(a)
   implicit none 
 
   class(psb_z_base_sparse_mat), intent(inout) :: a
+  type(psb_z_coo_sparse_mat) :: tmp
+  integer :: err_act, info
+  character(len=*), parameter :: name='z_base_transc'
+
+  call psb_erractionsave(err_act)
+  info = psb_success_
+  call a%mv_to_coo(tmp,info)
+  if (info == psb_success_) call tmp%transc()
+  if (info == psb_success_) call a%mv_from_coo(tmp,info)
+
+  if (info /= psb_success_) then 
+    info = psb_err_missing_override_method_ 
+    call psb_errpush(info,name,a_err=a%get_fmt())
+    goto 9999
+  end if
+  call psb_erractionrestore(err_act) 
+
+  return
+9999 continue
+  if (err_act /= psb_act_ret_) then
+    call psb_error()
+  end if
+
+  return
 
-  call a%transc() 
 end subroutine psb_z_base_transc_1mat
 
 
diff --git a/base/tools/psb_cdall.f90 b/base/tools/psb_cdall.f90
index d6cdbe9f..5abe3912 100644
--- a/base/tools/psb_cdall.f90
+++ b/base/tools/psb_cdall.f90
@@ -128,14 +128,6 @@ subroutine psb_cdall(ictxt, desc, info,mg,ng,parts,vg,vl,flag,nl,repl, globalche
 
   else if (present(nl)) then 
     
-!!$    allocate(desc%matrix_data(psb_mdata_size_))
-!!$    desc%matrix_data(psb_m_)        = nl
-!!$    call psb_sum(ictxt,desc%matrix_data(psb_m_))
-!!$    desc%matrix_data(psb_n_)        = desc%matrix_data(psb_m_)
-!!$    desc%matrix_data(psb_ctxt_)     = ictxt
-!!$    call psb_get_mpicomm(ictxt,desc%matrix_data(psb_mpi_c_))
-
-
 
     if (np == 1) then 
       allocate(psb_repl_map      :: desc%indxmap, stat=info)