northEastCorner = .TRUE.
IF ( northEastCorner ) THEN
LOGICAL northWestCorner, northEastCorner,
northEastCorner = .FALSE.
LOGICAL northEastCorner
northEastCorner = exch2_isEedge(myTile).EQ.1
if (northEastCorner.and.i.eq.sNx+1 .and. j.eq.sNy+1) then
LOGICAL northWestCorner, northEastCorner