Offline dynamics and 42 levels

[gkooperm@ucsd_edu]

Hi,

I am trying to run CAM with offline dynamics using gfs reanalysis that has 42 levels. I compile using additional flags in my build script:
-dyn fv
-cppdefs "-DOFFLINE_DYN"
-nlev 42

And include paths in my build namelist script to:
met_data_file
met_filenames_list
ncdata
bnd_topo

Otherwise, compiling is the same as when I'm using online dynamics. The model compiles and builds the namelists without any problems, but when I try to run I get the following error:
(seq_mct_drv) : Calling atm_init_mct
Fatal error in MPI_Recv: Other MPI error
Fatal error in MPI_Scatterv: Other MPI error, error stack

It seems to be a problem with nlev rather than offline dynamics, but I'm not sure. I've tried changing only nlev to 42 and not using offline dynamics and the run terminates at nearly the same place. In this run I included a path to ncdata with 42 levels, but not the others list above. Does anyone have experience with this? Is there anything else I need to set in order to run the model in this way?

Thanks,
Gabe