Problem running Parallel Offline Radiative Transfer (PORT) for feedback analysis using CAM5/CESM1.2

[ranfeng]

Hi everyone,I am trying to run offline radiation code to conduct feedback analysis for a few paleoclimate runs. With the 3-hr output from a slab-ocean run (rad_data_output=.true.), I was able to run PORT using an older version of cesm that was set up by a collaborator (cesm1_1_2_LENS_n09_port). However, when I try to run PORT using CESM1.2, even with changes in compset .xml file and the same script that I used to set up the previous version. The model crashes at the first time step. The changes that I made in the /glade/p/work/ranfeng/cesm1_2_0/scripts/ccsm_utils/Case.template/config_compsets.xml are the followings: 1850_CAM5%PORT_SLND_SICE_SOCN_SROF_SGLC_SWAV-offline_drv rad I kept getting the error msg that dopaer (aerosol optical depth) = Infinity (modal_aer_opt.F90). I was able to track it back to the variable state%q (in physics_types.F90), which is also Infinity across all levels. And finally the cam_out = Infinity in phys_init module of physpkg.F90. I am suspecting that the model isn't initialized properly. I am running out of ideas on how to fix it. Can anybody help me on this?I am attaching the cam log file and pieces of source code that I have added lines of outputs in order to do some simple diagnostics (search for rfeng). Any help would be really appreciated.Thanks.Ran