Error in running CAM4

[sirajkhan78@gmail_com]

Hi,

I am using CAM4 since 0ne year on one particular machine. Now after the summer break I run the same experiment, which was running previously, and am getting the following error (part is copied from cam log file) in running the model. I test the model with a simple run and same error is there. This error says some NetCdf issue but I am not able to find it. I didn't change any thing in machine and also the input data is not changed.

Model compilation/building is fine. Kindly help me to solve this issue.
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PHYS_GRID_INIT: Using PCOLS= 16 phys_loadbalance= 0
phys_twin_algorithm= 1 phys_alltoall= -1
chunks_per_thread= 1
print_memusage iam 0 phys_grid_init: end. -1 in the next line means unavailable
print_memusage: size, rss, share, text, datastack= 101040 11699 2092 3424 0
chem_surfvals_init: ghg surface values are fixed as follows
co2 volume mixing ratio = 3.670000000000000E-004
ch4 volume mixing ratio = 1.760000000000000E-006
n2o volume mixing ratio = 3.160000000000000E-007
f11 volume mixing ratio = 6.534500000000000E-010
f12 volume mixing ratio = 5.350000000000000E-010
INITIALIZE_RADBUFFER: ntoplw = 1 pressure: 354.463800000001
pio_support::pio_die:: myrank= 1 : ERROR: nf_mod.F90: 741 :
NetCDF: Not a valid ID
forrtl: severe (174): SIGSEGV, segmentation fault occurred
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siraj

 

[fischer]

Hi Siraj

What version of CAM4 are you running? Is there any chance that the netcdf libraries
were upgraded on the system over the summer?

Chris

 

[sirajkhan78@gmail_com]

Hi Chris,

I am using CAM4. I contacted the computer adminstrator and came to know that they changed the netcdf version in the system. I recompiled my code with new netcdf libraries and problem is solved.

Thanks
Siraj