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error running CAM4

Hi,I am trying to conduct a volcanic sensitive experiment after a long B1850 contral in CESM1.2.2, but it could not get started. The volcanic forcing  was added into the user_nl_cam as following. &prescribed_volcaero_nl prescribed_volcaero_datapath           = '/vol6/home/chaochaogao/CESM/inputdata/atm/cam/volc' prescribed_volcaero_file               = 'IVI2LoadingLatHeight502-2000_L18_c20100518.nc' prescribed_volcaero_name               = 'colmass' prescribed_volcaero_type               = 'SERIAL' the error message is below in cesm.log ... pio_support::pio_die:: myrank=          -1 : ERROR: nf_mod.F90:         679 : NetCDF: Variable not foundapplication called MPI_Abort(MPI_COMM_WORLD, 1) - process 1yhrun: error: cn2177: task 1: Exited with exit code 1yhrun: First task exited 60s agoyhrun: tasks 0,2-63: runningyhrun: task 1: exited abnormallyyhrun: Terminating job step 7700441.0slurmd[cn2177]: *** STEP 7700441.0 KILLED AT 2017-04-21T15:00:19 WITH SIGNAL 9 ***yhrun: Job step aborted: Waiting up to 2 seconds for job step to finish.slurmd[cn2177]: *** STEP 7700441.0 KILLED AT 2017-04-21T15:00:19 WITH SIGNAL 9 ***yhrun: error: cn3121: tasks 11-21: Killed  I want to konw if this is the right way to add the volcanic forcing? If not, can you give me some suggestions? and what lead to the error message? 
 
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