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remapcon leading to "segmentation fault (core dumped)" error

Added by Andreas Prein about 9 years ago

Hi,

I want to remap netcdf files with cdo (v1.6.3) remapcon and get a "segmentation fault (core dumped)" error. Strangely, if I try the same command several times it succeeds every ~3rd time and sometimes crashes with different error messages (Bus error (core dumped); Error (cdf_close) : NetCDF: HDF error). For larger files (longer time periods) it never succeeds.

Here is the cdo comand that I am using for the remapping:
cdo remapcon,tar_grid.nc -selvar,Data -setgrid,src_grid.nc SourceData.nc TargetData.nc

The according netcdf files are attached.

Thank you for your help,
Andreas


Replies (2)

RE: remapcon leading to "segmentation fault (core dumped)" error - Added by Uwe Schulzweida about 9 years ago

If you are using more than one CDO operator then all these operators are running in parallel and on different threads. Therefor the netCDF/HDF5 library must be compiled thread-safe. It seems that your netCDF/HDF installation is not thread-safe.
In this case you always need to use the CDO option -L to serialize the netCDF/HDF I/O access:

cdo -L remapcon,tar_grid.nc -selvar,Data -setgrid,src_grid.nc SourceData.nc TargetData.nc

RE: remapcon leading to "segmentation fault (core dumped)" error - Added by Andreas Prein about 9 years ago

That solved the problem.
Thank you very much for your help!

Best,
Andreas

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