[netcdfgroup] bug in hdf5?

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: [netcdfgroup] bug in hdf5?
• From: Jim Edwards <edwards.jim@xxxxxxxxx>
• Date: Mon, 18 Jan 2010 14:50:23 -0700

I am recently porting my code to netcdf4 and think that there may be a bug
in the underlying hdf5 library...

I'm not sure where to take it, thought I would try this list first.

The issue is that when a file is opened for read using nf90_open_par I get
an error on closing the file, I managed to get a traceback by using the mpi
wrappers facility

   1:call chain trace-back:
   1:   MPI_Comm_free
   1:   H5FD_mpi_comm_info_free
   1:   H5FD_mpio_close
   1:   H5FD_close
   1:   H5F_dest
   1:   H5F_try_close
   1:   H5F_close
   1:   H5I_dec_ref
   1:   H5Fclose
   1:   close_netcdf4_file
   1:   nc_close
   1:   nf_close
   1:   __netcdf_NMOD_nf90_close


1:ERROR: 0032-131 Can't free a predefined communicator  (0) in
MPI_Comm_free,

This is using netcdf 4.0.1 and hdf5 1.8.3

I don't seem to be getting this error on a file opened to write, only those
opened to read.