List of core codes.
===================

-  ``io_trunc.f``: Subroutines dealing with the lossy truncation of the
   data.
-  ``adios2.f``: Fortran wrapper to C++ ADIOS2 subroutines.
-  ``nek_adios2.cpp``: ADIOS2 subroutines that deal with initialization,
   execution and finalization of ADIOS2 losless compression.