[Wrf-users] Compiling for OpenMP on Cray systems?

[Carl Ponder]

I downloadedWRFV3.4.1.TAR.gz and am working on a Cray system.
The configurator gave me these options (among others)

       31.  Cray XT CLE/Linux x86_64, Cray CCE compiler with gcc  (serial)
       32.  Cray XT CLE/Linux x86_64, Cray CCE compiler with gcc (smpar)
       33.  Cray XT CLE/Linux x86_64, Cray CCE compiler with gcc (dmpar)
       34.  Cray XT CLE/Linux x86_64, Cray CCE compiler with gcc (dm+sm)

and I picked number 34. When I compile I get the errors

    ftn -o wrf.exe -Oomp  -N255 -Onomodinline -em -Onoomp -f free -h
    byteswapio  -Oomp    wrf.o ../main/module_wrf_top.o libwrflib.a
    /mnt/lustr
    e_server/cponder/CUDA/WRF/UCAR/WRFV3/external/fftpack/fftpack5/libfftpack.a
    /mnt/lustre_server/cponder/CUDA/WRF/UCAR/WRFV3/external/io_grib
    1/libio_grib1.a
    /mnt/lustre_server/cponder/CUDA/WRF/UCAR/WRFV3/external/io_grib_share/libio_grib_share.a
    /mnt/lustre_server/cponder/CUDA/WR
    F/UCAR/WRFV3/external/io_int/libwrfio_int.a
    -L/mnt/lustre_server/cponder/CUDA/WRF/UCAR/WRFV3/external/esmf_time_f90
    -lesmf_time /mnt/lustre
    _server/cponder/CUDA/WRF/UCAR/WRFV3/external/RSL_LITE/librsl_lite.a
    /mnt/lustre_server/cponder/CUDA/WRF/UCAR/WRFV3/frame/module_internal_he
    ader_util.o
    /mnt/lustre_server/cponder/CUDA/WRF/UCAR/WRFV3/frame/pack_utils.o
    -L/mnt/lustre_server/cponder/CUDA/WRF/UCAR/WRFV3/external/io
    _netcdf -lwrfio_nf -L/opt/cray/netcdf/4.2.0/cray/74/lib -lnetcdff
    -lnetcdf
    libwrflib.a(setfeenv.o): In function `setfeenv_':
    *setfeenv.c:(.text+0x46): undefined reference to `GOMP_parallel_start'*
    ***setfeenv.c:(.text+0x53): undefined reference to `GOMP_parallel_end'*
    make[1]: [em_wrf] Error 1 (ignored)
    make[1]: Leaving directory
    `/mnt/lustre_server/cponder/CUDA/WRF/UCAR/WRFV3/main'

I can make these go away by removing the definitions

    101   OMPCPP   =   -D_OPENMP
    102   OMP      =   -mp -Mrecursive
    103   OMPCC    =   -mp

fromconfigure.wrf, essentially making it run single-threaded.
Are there some environment settings I need to use, to get this to run 
with OpenMP on the Cray?
I tried loading the GCC module, in case theGOMP_parallel components were 
supposed to come from thegfortran library, but it didn't help.
If I have to edit theconfigure.wrf file, I'd say it wasn't generated 
correctly to begin with, and the WRF toolkit ought to be fixed.
Can any of you send me aconfigure.wrf and list of build instructions 
that will work?
Thanks,

                     Carl Ponder


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