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Makefiles Linux-ftn-cray.mk and Linux-ftn-intel.mk were added in ticket 756. Attached is another, Linux-ftn-gnu.mk. These 3 files support the 3 different programming environments on our Cray XC50: PrgEnv-cray, PrgEnv-intel and PrgEnv-gnu.

You may or may not also be interested in a modified version of Linux-gfortran.mk, also attached. This defines another netCDF-related variable, NETCDF_LIBS, used when USE_NETCDF4 is not set. I added this to allow me to provide the right variables on my CentOS 7 system, as discussed on the ​forum.

While compiling with the gfortran compiler and the following flags:

 -fcheck=all -fsanitize=address -fsanitize=undefined

we discovered few issues. The routines wclock_on and wclock_off need to be recursive.Also, LBC%reduced not initialized in mod_param.F.

The routines read_phypar.F and read_stapar.F were modified to suppress lots of warnings in gfortran:

At line XXX of file read_phypar.f90
Fortran runtime warning: An array temporary was created

Several changes were made to aid in new underway developments:

• Removed the parameter attribute to the declaration of MyMaster in mod_parallel.F.

• Changed from numerical to a variable argument in several MPI function calls in distribute.F:

        Npts=1
        CALL mpi_bcast (A, Npts, MPI_INTEGER, MyMaster, OCN_COMM_WORLD,   &
       &                MyError)
  
  instead of
  
        CALL mpi_bcast (A, 1, MPI_INTEGER, MyMaster, OCN_COMM_WORLD,   q   &
       &                MyError)
  

• Moved the declaration of Adir, Hdir, Hfile, and Rdir from mod_ncparam.F to mod_strings.F.

• Cleaned the use my_fflags in def_info.F, def_mod.F, and read_phypar.F.

• Updated the scripts build.bash and build.sh.