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CESM1.0.4 run failed with Unknow netcdf file format

Hi all,

When I ran CESM1.0.4, I got the following messages from ccsm.log.xxxx file:

Opened existing file
/***/inputdata/ccsm/lnd/clm2/griddata/griddata_0360x0720_c120203.nc
65536
Opened existing file
/***/inputdata/ccsm/lnd/clm2/griddata/fracdata_0360x0720_c120204.nc
65536
Opened existing file
/***/inputdata/ccsm/lnd/MsTMIP/surfdata_0.5x0.5_simyr1801_c05212012.nc
65536
Opened existing file
/***/inputdata/ccsm/lnd/MsTMIP/surfdata_0.5x0.5_simyr1801_c05212012.nc
65536
pio_support::pio_die:: myrank= -1 : ERROR: ionf_mod.F90:
222 : NetCDF: Unknown file format
---------
It seems that there are problems in reading nc file, and
My questions are:
1. what's the nc file having the unknown file format? It seems that the filename does not appear before the error occurs.
2. Is the problem related to nc file itself or the machine settings (I ran it on a generic linux pgi machine)?

Thanks.
All the best.
 
Hi guys,I am facing the same problem while running a CESM-1_2_0.I cant figure out the issue why I am getting the error ?............................................................................................/scratch/cas/phd/asz118159/inputdata/atm/cam/chem/trop_mozart_aero/emis/RCP45_mam3_so4_a2_surf_2000-2100_c20111116.nc 917504 Opened existing file /scratch/cas/phd/asz118159/inputdata/atm/cam/chem/trop_mozart_aero/emis/RCP45_mam3_so4_a2_surf_2000-2100_c20111116.nc 917504pio_support::pio_die:: myrank= -1 : ERROR: ionf_mod.F90: 228 : NetCDF: Unknown file format--------------------------------------------------------------------------MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD with errorcode 1.NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.You may or may not see output from other processes, depending on exactly when Open MPI kills them. -------------------------------------------------------------------------- ..........................................................................................Please Tell me how to solve this error ? If there is a problem with the input .nc file.. then how to figure out the name of the file ? Thanks in advance Somanath Moharana
 

tysllh@163_com

New Member
Hi, Do you figure out the error files? I have the same errors like this: pio_support::pio_die:: myrank=          -1 : ERROR: ionf_mod.F90:         222 :  NetCDF: Unknown file format--------------------------------------------------------------------------mpirun noticed that process rank 1 with PID 25780 on node c17b04 exited on signal 11 (Segmentation fault).
 

katec

CSEG and Liaisons
Staff member
Hi there,One thing you can try is to set PIO_DEBUG_LEVEL=1 (this is in env_run.xml). Resubmit the run after this, and check out the cesm.log file. This setting will probably give you WAAAY more information than you actually want, but it should also give the name of the files that it is trying to open before it crashes. Kate T-C
 

tysllh@163_com

New Member
Hi Kate I set PIO_DEBUG_LEVEL=1 and resubmit the run. There are two files in Attachment. But I still not figure out which file  the run.Could you help to check the log files? I will be very appreciate.Lv Lianghong
 
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