Bug Fix For Computing Radar Reflectivity for Thompson Scheme (posted 10/12/12)
Problem: There is a bug in computing radar reflectivity for Thompson scheme. The bug is about not utilizing spherical snow assumption used in the scheme.
Solution: Replace phys/module_mp_radar.F with the corrected one.
Using 'override_restart_timers' OPTION IN NAMELIST (posted 9/7/12)
Problem: When using this namelist option for running restarts, in combination with using the 'sst_update' or 'fdda' options, this was not working as it should, since these use input files at set intervals.
Solution: The file 'input_wrf.F' has been updated to correct this problem and now should only use the output files (as opposed to input files) when running a restart with 'sst_update' or 'fdda.' Obtain a copy of the updated 'input_wrf.F file here.
Compile WRF 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 V3.4 (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)
- sf_surface_physics = 8 (SSiB LSM, OpenMP)
- bl_pbl_physics = 10 (TEMF PBL, some systems)
- bl_pbl_physics = 5,6, together with sf_sfclay_physics = 5 (MYNN, and MYNN sfclay, serial vs MPI on some systems)
- mp_physics = 7 (Goddard GCE microphysics, serial vs MPI some systems)
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.
