--- trunk/OOPSE/libmdtools/calc_sticky_pair.F90	2003/07/17 20:38:11	636
+++ trunk/OOPSE/libmdtools/calc_sticky_pair.F90	2003/10/29 20:41:39	843
@@ -9,7 +9,7 @@
 !! @author Matthew Meineke
 !! @author Christopher Fennel
 !! @author J. Daniel Gezelter
-!! @version $Id: calc_sticky_pair.F90,v 1.12 2003-07-17 20:38:11 gezelter Exp $, $Date: 2003-07-17 20:38:11 $, $Name: not supported by cvs2svn $, $Revision: 1.12 $
+!! @version $Id: calc_sticky_pair.F90,v 1.15 2003-10-29 20:41:38 mmeineke Exp $, $Date: 2003-10-29 20:41:38 $, $Name: not supported by cvs2svn $, $Revision: 1.15 $
 
 module sticky_pair
 
@@ -111,13 +111,14 @@ contains
     real (kind=dp) :: rijtest, rjitest
     real (kind=dp) :: radcomxi, radcomyi, radcomzi
     real (kind=dp) :: radcomxj, radcomyj, radcomzj
-
+    integer :: id1, id2
 
     if (.not.sticky_initialized) then
        write(*,*) 'Sticky forces not initialized!'
        return
     endif
 
+
     if ( rij .LE. SSD_rbig ) then
 
        r3 = r2*rij
@@ -346,8 +347,17 @@ contains
 #endif
 
        if (do_stress) then          
-          if (molMembershipList(atom1) .ne. molMembershipList(atom2)) then
+
+#ifdef IS_MPI
+          id1 = tagRow(atom1)
+          id2 = tagColumn(atom2)
+#else
+          id1 = atom1
+          id2 = atom2
+#endif
 
+          if (molMembershipList(id1) .ne. molMembershipList(id2)) then
+
              ! because the d vector is the rj - ri vector, and 
              ! because fxradial, fyradial, and fzradial are the
              ! (positive) force on atom i (negative on atom j) we need