diff --git a/refraction/SIZE b/refraction/SIZE
old mode 100644
new mode 100755
diff --git a/refraction/refraction.box b/refraction/refraction.box
old mode 100644
new mode 100755
diff --git a/refraction/refraction.rea b/refraction/refraction.rea
old mode 100644
new mode 100755
diff --git a/refraction/refraction.usr b/refraction/refraction.usr
old mode 100644
new mode 100755
index 243b70d..b02872d
--- a/refraction/refraction.usr
+++ b/refraction/refraction.usr
@@ -506,11 +506,8 @@ c-----------------------------------------------------------------------
       include 'SIZE'
       include 'TOTAL'
       include 'EMWAVE'
+      include 'RTIMER' 
 
-      common /ccpu/ cpu_t,cpu_dtime,cpu_chk
-      real cpu_t,cpu_dtime,cpu_chk
-
-      real cpu_p_t
       real l2(6),linf(6)
 
       if (istep.le.10.or.mod(istep,iocomm).eq.0) then
diff --git a/temporal-fresnel/fresnel.usr b/temporal-fresnel/fresnel.usr
index 0bf040b..55b8fa6 100644
--- a/temporal-fresnel/fresnel.usr
+++ b/temporal-fresnel/fresnel.usr
@@ -213,9 +213,7 @@ c-----------------------------------------------------------------------
       include 'TOTAL'
       include 'EMWAVE'
       include 'PML'
-
-      common /ccpu/ cpu_t,cpu_dtime,cpu_chk
-      real cpu_t,cpu_dtime,cpu_chk
+      include 'RTIMER' 
 
       common /userlogic/ twomat
       logical twomat
@@ -223,7 +221,6 @@ c-----------------------------------------------------------------------
       integer i
       real l2(6),linf(6)
       real l2tol(6),linftol(6)
-      real cpu_p_t
 
       if (istep.eq.1000) then
          do i = 1,npts