--- MITgcm/doc/tag-index	2010/04/28 08:37:41	1.1258
+++ MITgcm/doc/tag-index	2010/05/06 23:42:56	1.1263
@@ -1,19 +1,37 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.1258 2010/04/28 08:37:41 mlosch Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.1263 2010/05/06 23:42:56 jmc Exp $
 $Name:  $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+o pkg/exch2:
+  - remove "simulationMode" from arg. list of S/R EXCH2_RX1,2_CUBE ; 
+  - add argument "signOption" to EXCH2_RX1_CUBE (will be needed for SM exch).
+o pkg/autodiff & exch2:
+  process exch_uv_agrid_3d_rx.f & exch2_uv_agrid_3d_rx.f through TAF
+  (for now, only if ALLOW_EXCH2 is defined).
+o pkg/autodiff:
+  - include PACKAGES_CONFIG.h in exch*ad.flow & exch*ad.F 
+    (not supposed to be in CPP_OPTIONS.h) to get ALLOW_EXCH2 defined correctly.
+   + clean-up comments (_RS is not always real*4)
+  - fix bug in ADEXCH_UV_3D_RX (without EXCH2, was calling the forward exch S/R)
+  - add a stop in ADEXCH_UV_AGRID_3D_RX if trying to use it with EXCH2:
+    was calling a forward exch2, which is wrong ; used in SEAICE & EXF pkgs.
+o testreport (AD-tests):
+  no longer link files from dir "../input" (1rst link files from
+  "../input_ad.[xx]" if secondary test "xx" and then from "../input_ad")
+
+checkpoint62f (2010/04/29)
 o model/src/the_main_loop.F:
   adjust store directives for seaice evp and multicategory according to
   pkg/ecco/the_main_loop.F
 o adjoint:
-  global_sum_ad was incomplete (noted many times by many people ;) 
+  global_sum_ad was incomplete (noted many times by many people ;)
   nice description by Jean U. as follows:
-  * allreduce(var) in global_sum.F can be interpreted as 
-    reduce(sum) followed by broadcast of sum.  
-  * The adjoint of that is 
-    sum(adjoint) followed by broadcast(summed adjoint value) 
+  * allreduce(var) in global_sum.F can be interpreted as
+    reduce(sum) followed by broadcast of sum.
+  * The adjoint of that is
+    sum(adjoint) followed by broadcast(summed adjoint value)
     or in other words, allreduce(sum, adjoint vars)
   We were missing the sum(adjoint)!
   Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)