[MITgcm-devel] overlap question for diagnostic field oceSPtnd

[An Nguyen]

Hello MITgcm gurus,

I am using advection scheme 7 with overlapping Olx=Oly=8, and I have been getting the 3D diagnostics oceSPtnd looking like this (I hope the attachment work, if not i'm including also a link to a figure) where the checkerboard squares are exactly 8x8 in size.  This is a plot for the top level (k=1).. The problem exists for other depths too. 

This diagnostic is filled inside salt_plume_tendency_apply_s.F 
       CALL DIAGNOSTICS_FILL (
     &      plumetend,'oceSPtnd',k,1,2,bi,bj,myThid )

with arguments specifying that we're passing in a tile with overlaping regions.

I can't seem to find where the problem might be.  There is an exact diagnostics, which is filled outside of that subroutine under the diagnostic name SPtd_SLT, and it has the same problem.  

Could you suggest where I can get started to diagnose the problem? it looks like there is a missing exchange somewhere ?

Thanks,
An

link to figure in case it's not seen with this message:
https://utexas.box.com/s/pg8s0zq9gv47cg6xtht755shndk7s9or

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