diff --git a/prec/psb_d_prec_type.f90 b/prec/psb_d_prec_type.f90
index 8ef0ad97..2f0731a5 100644
--- a/prec/psb_d_prec_type.f90
+++ b/prec/psb_d_prec_type.f90
@@ -243,13 +243,14 @@ contains
 
   end subroutine d_apply2v
 
-  subroutine d_apply1v(prec,x,desc_data,info,trans)
+  subroutine d_apply1v(prec,x,desc_data,info,trans,work)
     use psb_base_mod
     type(psb_desc_type),intent(in)    :: desc_data
     class(psb_dprec_type), intent(in) :: prec
     real(psb_dpk_),intent(inout)      :: x(:)
     integer, intent(out)              :: info
     character(len=1), optional        :: trans
+    real(psb_dpk_),intent(inout), optional, target :: work(:)
 
     character     :: trans_
     integer :: ictxt,np,me, err_act
diff --git a/test/fileread/df_sample.f90 b/test/fileread/df_sample.f90
index cd27df2e..11d12594 100644
--- a/test/fileread/df_sample.f90
+++ b/test/fileread/df_sample.f90
@@ -174,6 +174,8 @@ program df_sample
 
   end if
 
+  call psb_mat_renum(psb_mat_renum_gps_,aux_a,info) 
+  
   ! switch over different partition types
   if (ipart == 0) then 
     call psb_barrier(ictxt)
diff --git a/util/psb_gps_mod.f90 b/util/psb_gps_mod.f90
index 2552a525..5e276df2 100644
--- a/util/psb_gps_mod.f90
+++ b/util/psb_gps_mod.f90
@@ -116,7 +116,7 @@ CONTAINS
     ! COMMON /CC/ XCC, SIZEG(50), STPT(50)
     ! COMMON /LVLW/ NHIGH(100), NLOW(100), NACUM(100)
     DIMENSION CCSTOR(NR), IOLD(NR)
-    DIMENSION NDSTK(NR,IDEGE), LVL(NR), LVLS1(1), LVLS2(1), RENUM(NR+1), NDEG(NR)
+    DIMENSION NDSTK(NR,IDEGE), LVL(NR), LVLS1(NR), LVLS2(NR), RENUM(NR+1), NDEG(NR)
 !!$    integer :: stnode, rvnode, stnum, sbnum
 !!$    integer :: ndstk(nr,iedge), iold(nr), renum(nr+1), ndeg(nr) 
 !!$    integer :: lvl(nr), lvls1(nr), lvls2(nr), ccstor(nr)    
diff --git a/util/psb_renum_impl.F90 b/util/psb_renum_impl.F90
index 4a9af785..f335d5c2 100644
--- a/util/psb_renum_impl.F90
+++ b/util/psb_renum_impl.F90
@@ -16,7 +16,7 @@ subroutine psb_d_mat_renum(alg,mat,info)
   info = psb_success_
 
   select case (alg)
-  case(psb_renum_gps_) 
+  case(psb_mat_renum_gps_) 
 
     call psb_mat_renum_gps(mat,info)
 
@@ -85,11 +85,17 @@ contains
     end if
     do i=1, nr
       iold(i) = i 
+      ndstk(i,:) = 0
+      k  = 0
+      do j=acsr%irp(i),acsr%irp(i+1)-1
+        k = k + 1
+        ndstk(i,k) = acsr%ja(j)
+      end do
     end do
     perm = 0
 
     call psb_gps_reduce(ndstk,nr,ideg,iold,perm,ndeg,ibw,ipf,idpth)
-    
+
     if (.not.psb_isaperm(nr,perm)) then 
       write(0,*) 'Something wrong: bad perm from gps_reduce'
       info = psb_err_from_subroutine_
diff --git a/util/psb_renum_mod.f90 b/util/psb_renum_mod.f90
index 77fc6f2b..0bdcd7e9 100644
--- a/util/psb_renum_mod.f90
+++ b/util/psb_renum_mod.f90
@@ -1,7 +1,7 @@
 module psb_renum_mod
   use psb_base_mod
 
-  integer, parameter :: psb_renum_gps_ = 456
+  integer, parameter :: psb_mat_renum_gps_ = 456
 
   
   interface psb_mat_renum