HELP NEEDED WITH DOMAIN

[Dipson11]

Hi, I have included my domain configuration below, I am using mpi -np 32 ./wrf.exe , it is taking very long time for the simulation . I would like to know if I have made any mistakes in setting up the domain, and timestep. thanks a lot.

&domains
time_step = 30,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 3,
e_we = 138,229,109,
e_sn = 137,232,103,
e_vert = 45, 45, 45,
p_top_requested = 5000,
num_metgrid_levels = 32,
num_metgrid_soil_levels = 4,
dx = 9000,3000,1000,
dy = 9000,3000,1000,
grid_id = 1, 2, 3,
parent_id = 1, 1, 2,
i_parent_start = 1, 30, 100,
j_parent_start = 1, 34, 90,
parent_grid_ratio = 1, 3, 3,
parent_time_step_ratio = 1, 3, 3,
auto_levels_opt = 2,
max_dz = 1000,
dzbot = 100,
dzstretch_s = 1.3,
dzstretch_u = 1.1,
rebalance = 1,
feedback = 1,
smooth_option = 0,
smooth_cg_topo = .true.,
! sfcp_to_sfcp = .true., /

 

[William.Hatheway]

Hi, I have included my domain configuration below, I am using mpi -np 32 ./wrf.exe , it is taking very long time for the simulation . I would like to know if I have made any mistakes in setting up the domain, and timestep. thanks a lot.

&domains
time_step = 30,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 3,
e_we = 138,229,109,
e_sn = 137,232,103,
e_vert = 45, 45, 45,
p_top_requested = 5000,
num_metgrid_levels = 32,
num_metgrid_soil_levels = 4,
dx = 9000,3000,1000,
dy = 9000,3000,1000,
grid_id = 1, 2, 3,
parent_id = 1, 1, 2,
i_parent_start = 1, 30, 100,
j_parent_start = 1, 34, 90,
parent_grid_ratio = 1, 3, 3,
parent_time_step_ratio = 1, 3, 3,
auto_levels_opt = 2,
max_dz = 1000,
dzbot = 100,
dzstretch_s = 1.3,
dzstretch_u = 1.1,
rebalance = 1,
feedback = 1,
smooth_option = 0,
smooth_cg_topo = .true.,
! sfcp_to_sfcp = .true., /

These links might help you out

WRF Namelist.input Best Prac

WRF namelist.wps Best Prac

As well as the tutorial pages here:

WRF Tutorial Presentations

Full-length presentations presented at the Basic WRF Tutorial. *NOTE: Presentations can be broken into chapters for easier viewing. To see chapters, while vi...

www.youtube.com

 

[kwerner]

Hi, I have included my domain configuration below, I am using mpi -np 32 ./wrf.exe , it is taking very long time for the simulation . I would like to know if I have made any mistakes in setting up the domain, and timestep. thanks a lot.

Unless you're getting CFL errors when using a higher time_step, you could afford to increase your time_step to maybe 45. If you have additional processors available, you should also be able to use more processors - try 144. Both of these changes together, and individually, can help to speed up the process.