Fix to support WRF Pnetcdf + quilting configuration when coupled to ROMS #217
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…arallel NC + quilting.
2. Fix the MPI job hanging after completion, if WRF is configured with parallel NC + quilting.
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I've managed to run a coupled WRF-ROMS setup and configure WRF with PnetCDF + quilting.
I had to fix the hanging after both models completed the integration. The problem was that the processes allocated to quilting did not call mpi_barrier correctly.
Please consider merging. You only need changes from WRF/frame/module_io_quilt_old.F
PS: The last compilation step does not link PNetcdf libraries. I fixed it manually by supplying "-L/lustre/scratch/osipovs/Models/COAWST/WRF/external/io_pnetcdf -lwrfio_pnf -L/opt/cray/pe/parallel-netcdf/1.12.1.4/INTEL/19.1/lib -lpnetcdf"
Best, Sergey