Hybrid run: question about *.cam.i*

[s_l_bradley@sheffield_ac_uk]

Hello,I have a questions about restarting a run (Hybrid) from a previously ran CESM2.1.0. outputMy aim is: to restart/setup a case from a previous run at month 10 - using the restart files saved from that run. The /scratch/[previous_run]/run folder has been deleted. I have generated restart files at a montly interval - for example at month 10: this is the output that is generated and there is NO B-LGM-190807.cam.i.0001-10-01-00000.nc B-LGM-190807.cam.h0.0001-09.nc             B-LGM-190807.pop.ro.0001-10-01-00000B-LGM-190807.cam.h1.0001-01-01-00000.nc    B-LGM-190807.rtm.h0.0001-09.ncB-LGM-190807.cam.r.0001-10-01-00000.nc     B-LGM-190807.rtm.r.0001-10-01-00000.ncB-LGM-190807.cam.rh1.0001-10-01-00000.nc   B-LGM-190807.rtm.rh0.0001-10-01-00000.ncB-LGM-190807.cam.rs.0001-10-01-00000.nc    rpointer.atmB-LGM-190807.cice.r.0001-10-01-00000.nc    rpointer.drvB-LGM-190807.cism.r.0001-10-01-00000.nc    rpointer.glcB-LGM-190807.clm2.h0.0001-09.nc            rpointer.iceB-LGM-190807.clm2.h1.0001-09-28-00000.nc   rpointer.lndB-LGM-190807.clm2.r.0001-10-01-00000.nc    rpointer.ocn.ovfB-LGM-190807.clm2.rh0.0001-10-01-00000.nc  rpointer.ocn.restartB-LGM-190807.clm2.rh1.0001-10-01-00000.nc  rpointer.ocn.tavgB-LGM-190807.cpl.r.0001-10-01-00000.nc     rpointer.rof

When I then come to create a new_case, using these restart files, that I have copied into my /scratch/run folder: the *.cam.i file is missing and the model crashes.<br /><br />I have attached the  script that I use to set up and build my run. (create_LGM_B-restartCESM_EBM_AUG2019.txt<br /><br />All these runs are performed a dutch computer.<br /><br />thanks<br /><br />Sarah Bradley

B-LGM-190807.pop.r.0001-10-01-00000.nc 

 

[jedwards]

I think that what you want is a branch and not a hybrid run.  

 

[s_l_bradley@sheffield_ac_uk]

Hi, thanks for the reply. However when I try to repeat - changing from 'hybrid' to branch: the model then does not build CAM?This is the error message I recieve:Generating component namelists as part of buildGET_REFCASE is false, the user is expected to stage the refcase to the run directory.Creating component namelists   Calling /nfs/home4/sarah/cesm_tags/cesm2.1.0-ismip/components/cam//cime_config/buildnml     ...calling cam buildcpp to set build time optionsERROR: Command /nfs/home4/sarah/cesm_tags/cesm2.1.0-ismip/components/cam/bld/build-namelist -ntasks 192 -csmdata /projects/0/couplice/inputdata -infile /home/sarah/cases_LGM_B-I/B-LGM-EBM-190816/Buildconf/camconf/namelist -ignore_ic_year -use_case 1850_cam6 -inputdata /home/sarah/cases_LGM_B-I/B-LGM-EBM-190816/Buildconf/cam.input_data_list -namelist " &atmexp /"  failed rc=255out=CAM build-namelist - ERROR: No default value found for ncdataWas there some extra change I was supposed to add? When I read the env_run.xml information branch should work it seems 

 

[Cliff Chen]

hi, did you solve the problem? I met a similar error in CESM122, I want to run a hybrid case since 0005-04-01-0000 using the restart files, but I didn't get the cam.i.0005-04-01-0000.nc ( only cam.i.0005-01-01-0000 ) from the previous case. I know it has been a longtime since you met the error, I'd appreciate any help from you.