* benchmarks/C/pnetcdf_put_vara.c
    This program writes a series of 3D variables with 2D block-block
    partitioning pattern. Each variable is a record variable. The number of
    variables, variable size, number of time records, and the NetCDF file
    format can be customized through command-line options. In addition, option
    '-i', if set, PnetCDF nonblocking APIs will be used to write to the file.
* benchmarks/C/netcdf_put_vara.c
    This sequential NetCDF-C program writes a series of 3D variables.  Each
    variable is a record variable. The number of variables, variable size,
    number of time records, and the NetCDF file format can be customized
    through command-line options.
    This program and `C/pnetcdf_put_vara.c` can be used to compare the
    performance of NetCDF and PnetCDF when running sequentially, i.e. one
    process.