WRF Modeling System Known Problems and Fixes

WRF Version 3.4 was released on April 6, 2012.

WRF Version 3.4

WRF-NMM restart runs (posted 4/20/12)

Problem: WRF-NMM restart runs not working properly for compilations with no nesting (i.e., nesting option = 0).

Solution: Compile WRF-NMM with basic nesting (i.e., nesting option = 1). A fix for this will be posted as soon as one becomes available.

Compile V3.4 with ifort (posted 4/6/12)

Problem: With the use of ifort 10.1, the model may seg fault with RRTMG radiation options with default compiler option.

Solution: Reducing the optimization level from -O3 to -O2 appears to resolve the problem.

OpenMP And MPI for some physics in V3.4 (posted 4/6/12)

Problem: Certain physics options do not work correctly with OpenMP or MPI compile:

  • mp_physics = 9 (Milbrandt-Yau scheme) (OpenMP)
  • sf_urban_physics = 2 (BEM) (OpenMP)
  • ishallow = 1 (OpenMP and MPI)
  • There is no known problem with these physics options if OpenMP or MPI is not used.

    Solution: Do not attempt to use the above listed options with OpenMP or MPI compile.

    Two-way nesting with serial compile (posted 4/6/12)

    Problem: Erroneous solutions present in the parent domain with serial compile using PGI, ifort, and gfortran.

    Solution: Compile with the parallel option.

    Reading binary data into WRF (posted 4/6/12)

    Problem: Reading binary output from WPS into WRF is currently not working correctly on Linux platforms. This problem only affects binary input into WRF; binary output from WRF is working properly.

    Solution: Use netCDF output from WPS. A fix for this will be posted as soon as one becomes available.

    Previous release notes

    WRF Version 3.3.1

    WRF Version 3.3

    WRF Version 3.2.1

    WRF Version 3.2

    WRF Version 3.1.1

    WRF Version 3.1

    WRF Version 3.0.1.1

    WRF Version 3.0.1

    WRF Version 3.0

    WRF Version 2.2.1

    WRF Version 2.2