Recommendations about compilation (V8)

• Before any run of SURFEX, you should set

export OMP_NUM_THREADS=1

preferentially in the file $HOME/.bash_profile (not to have to do it each time you open a new terminal)

• At installation, before to do ./configure:
  • verify ARCH, VER_MPI, VER_OMP, OPTLEVEL, VER_CDF, VER_DRHOOK, VER_GRIBAPI, VER_OASIS, NEED_NCARGS, NEED_TOOLS are empty (echo $ARCH, echo $VER_MPI, etc)

• Options for VER_MPI:
  • NOMPI (no MPI), MPIAUTO (default MPI library on the PC), specific libraries to be defined
• Options for VER_OMP:
  • NOOMP (no Open-mp), OMP (Open-mp)
• Options for OPTLEVEL ( optimization level ) :
  • DEBUG, O2
• Options for VER_CDF ( Netcdf library):
  • CDFAUTO (included in SURFEX), CDFCTI (installed by CTI), other pre-installed libraries on computers.
• Options for VER_DRHOOK ( DR_HOOK library):
  • BYPASS (dummies), MINI (minimal HOOK, no parallelization), SIMPLE (simplified DRHOOK)
• Options for VER_GRIBAPI (GRIBAPI library):
  • GRIBAPI_AUTO (included in SURFEX), SOPRANO, pre-installed to define
• Options for VER_OASIS (OASIS library):
  • NOmct (no OASIS), mct (OASIS)
• Options for NEED_NCARG, NEED_TOOLS (for Mesonh):
  • NO