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WRF Model Version 3.3 : Known Problems and Fixes

Problem with Program real.exe (posted 5/27/11)

Problem: There is a bug in program real which was introduced in V3.3. If you have getting a seg fault running program real, or having trouble running wrf.exe, this might be the cause.

Solution: Please download module_initialize_real.F.fix-3.3 to WRFV3/dyn_em/ directory. Recompile.

Problem with New Configure Script (posted 4/8/11)

Problem: There is a problem with the new configure script on Opensuse and Ubuntu Linux. It will fail on creating configure.wrf file, and may result in file removal in the top WRFV3/ directory. If configure.wrf is successfully created, then this fix doesn't affect you.

Solution: If files are removed from WRFV3 directory, you will have to redownload the V3.3 tar file, or re-untar the file. Then download the configure_fix.tar file in the WRFV3 directory. This file contains a new configure script, and a new arch/configure_new.default file.

Bug in SKEB code (posted 4/6/11)

Problem: A bug is reported to use SKEB (stochastic kinetic-energy backscatter scheme) with a variable (idiv) used but not defined.

Solution: The change is to add

idiv = 7

after line 889 of dyn_em/module_stoch.F. Or download the file here.

Compile V3.3 with ifort (posted 4/6/11)

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

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

OpenMP And MPI For Some Physics in V3.3 (posted 4/6/11)

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

- 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.

 



 
 
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