[netCDF #IDQ-812680]: Netcdf Unknown file format with CCSM4.0

Hi,

> I encountered one error during CCSM4.0 run.
> 
> Can anyone give me some insights of what can cause this?
> 
> Ccsm and netcdf was compiled by intel compiler.
> 
> Error:
> 
> Overflow: Faroe Bank Channel       Product adjacent mask at global (ij)=
> 19  348
> 
> Overflow: Faroe Bank Channel       Product adjacent mask at global
> (ij)= 19  349
> 
> Reading setup_nml
> 
> Reading grid_nml
> 
> Reading ice_nml
> 
> Reading tracer_nml
> 
> CalcWorkPerBlock: Total blocks:   128 Ice blocks:   128 IceFree blocks:
> 0 Land blocks:     0
> 
> pio_support::pio_die:: myrank=           1 : ERROR: ionf_mod.F90:
> 210 :
> 
> NetCDF: Unknown file format

That error message corresponds to an error return from a call to the netCDF 
open function,
as the result of a request to either open a file that is too small to be a 
netCDF file (less than
32 bytes) or to open a file that is not a netCDF file.  The latter could happen 
if you are trying
to open a netCDF-4 file or a netCDF-4 classic model file with a program linked 
to a netCDF
library that was built without the --enable-netCDF-4 configure flag.

So, for example, if someone provided a file that makes use of netCDF-4 
compression features
in a netCDF-4 classic model file and you try to open the file with a netCDF-3 
library or a
netCDF-4 library built without the --enable-netcdf-4 flag or built without 
access to an
HDF5 library (needed for netCDF-4 features), then you would get that error.  It 
would also 
occur if you try to rid a text file or any other non-netCDF file when a netCDF 
file is expected.

--Russ

> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> 
> Image              PC                Routine            Line
> Source
> 
> libc.so.6          00000031F7478F50  Unknown               Unknown
> Unknown
> 
> ccsm.exe           000000000123AC53  Unknown               Unknown
> Unknown
> 
> ccsm.exe           000000000112C693  Unknown               Unknown
> Unknown
> 
> ccsm.exe           00000000010EB834  Unknown               Unknown
> Unknown
> 
> ccsm.exe           000000000114C7FC  Unknown               Unknown
> Unknown
> 
> ccsm.exe           00000000010E5265  Unknown               Unknown
> Unknown
> 
> ccsm.exe           0000000000B43C96  ice_pio_mp_ice_pi         213
> ice_pio.F90
> 
> ccsm.exe           0000000000B5B3D8  ice_restart_mp_re        1122
> ice_restart.F90
> 
> ccsm.exe           0000000000BC5925  cice_initmod_mp_c         138
> CICE_InitMod.F90
> 
> ccsm.exe           0000000000AD6EC2  ice_comp_mct_mp_i         218
> ice_comp_mct.F90
> 
> ccsm.exe           00000000004B4960  MAIN__                    686
> ccsm_driver.F90
> 
> ccsm.exe           00000000004AC32C  Unknown               Unknown
> Unknown
> 
> libc.so.6          00000031F741D974  Unknown               Unknown
> Unknown
> 
> ccsm.exe           00000000004AC239  Unknown               Unknown
> Unknown
> 
> 
> 

Russ Rew                                         UCAR Unidata Program
address@hidden                      http://www.unidata.ucar.edu



Ticket Details
===================
Ticket ID: IDQ-812680
Department: Support netCDF
Priority: Normal
Status: Closed