Hi, I think there is a problem with the exch2 (on 1 processor): after reading a pickup file and calling exch_uv(uVel,vVel) the exhc2 does not give the same uVel(sNx,-1) as the old exch_uv. This is anoying since we need a correct value of uVel at this location (for instance, when using tempAdvectscheme=77). Jean-Michel