diff --git a/test/cdasb/psb_d_pde3d.f90 b/test/cdasb/psb_d_pde3d.f90
index 2021eb75..c14f8446 100644
--- a/test/cdasb/psb_d_pde3d.f90
+++ b/test/cdasb/psb_d_pde3d.f90
@@ -381,7 +381,7 @@ contains
         ! 
         integer(psb_mpk_), allocatable :: neighbours(:)
         integer(psb_mpk_) :: cnt
-        logical, parameter :: debug_adj=.true.
+        logical, parameter :: debug_adj=.false.
         if (debug_adj.and.(np > 1)) then 
           cnt = 0
           allocate(neighbours(np))
@@ -397,6 +397,18 @@ contains
             cnt = cnt + 1 
             call ijk2idx(neighbours(cnt),iamx,iamy,iamz+1,npx,npy,npz,base=0)
           end if
+          if (iamx >0) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx-1,iamy,iamz,npx,npy,npz,base=0)
+          end if
+          if (iamy >0) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx,iamy-1,iamz,npx,npy,npz,base=0)
+          end if
+          if (iamz >0) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx,iamy,iamz-1,npx,npy,npz,base=0)
+          end if
           call psb_realloc(cnt, neighbours,info)
           call desc_a%set_p_adjcncy(neighbours)
           write(0,*) iam,' Check on neighbours: ',desc_a%get_p_adjcncy()
diff --git a/test/pargen/psb_d_pde3d.f90 b/test/pargen/psb_d_pde3d.f90
index 72446b00..60cb9e9e 100644
--- a/test/pargen/psb_d_pde3d.f90
+++ b/test/pargen/psb_d_pde3d.f90
@@ -237,7 +237,7 @@ contains
 
     call psb_info(ictxt, iam, np)
     call psb_cd_set_large_threshold(1000)
-    call psb_cd_set_maxspace(10000)
+    call psb_cd_set_maxspace(-1)
     
     if (present(f)) then 
       f_ => f
@@ -373,7 +373,49 @@ contains
       ! the set of global indices it owns.
       ! 
       call psb_cdall(ictxt,desc_a,info,vl=myidx)
+
       
+      block
+        !
+        ! Test adjcncy methods 
+        ! 
+        integer(psb_mpk_), allocatable :: neighbours(:)
+        integer(psb_mpk_) :: cnt
+        logical, parameter :: debug_adj=.false.
+        if (debug_adj.and.(np > 1)) then 
+          cnt = 0
+          allocate(neighbours(np))
+          if (iamx < npx-1) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx+1,iamy,iamz,npx,npy,npz,base=0)
+          end if
+          if (iamy < npy-1) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx,iamy+1,iamz,npx,npy,npz,base=0)
+          end if
+          if (iamz < npz-1) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx,iamy,iamz+1,npx,npy,npz,base=0)
+          end if
+          if (iamx >0) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx-1,iamy,iamz,npx,npy,npz,base=0)
+          end if
+          if (iamy >0) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx,iamy-1,iamz,npx,npy,npz,base=0)
+          end if
+          if (iamz >0) then
+            cnt = cnt + 1 
+            call ijk2idx(neighbours(cnt),iamx,iamy,iamz-1,npx,npy,npz,base=0)
+          end if
+          call psb_realloc(cnt, neighbours,info)
+          call desc_a%set_p_adjcncy(neighbours)
+          write(0,*) iam,' Check on neighbours: ',desc_a%get_p_adjcncy()
+        end if
+      end block
+
+
     case default
       write(psb_err_unit,*) iam, 'Initialization error: should not get here'
       info = -1