Hello,
I've been trying to run some WRF-LES simulations at 50-25m resolution but seem to be having some trouble getting around some cfl violations. I am able to run a 200x300 point domain with 100m resolution no problem, but anything lower than that causes a stream of CFL violations. I have tried setting my e_vert from 40 to 200 using a 2000m ztop. They all seem to have similar CFL violations though.
I copied the /test/em_les/namelist.input physics section:
&physics
mp_physics = 0, 0, 0,
ra_lw_physics = 0, 0, 0,
ra_sw_physics = 0, 0, 0,
radt = 0, 0, 0,
sf_sfclay_physics = 1, 1, 1,
sf_surface_physics = 0, 0, 0,
bl_pbl_physics = 0, 0, 0,
bldt = 0, 0, 0,
cu_physics = 0, 0, 0,
cudt = 0, 0, 0,
isfflx = 2,
I've also tried varying the amount of cpu cores dedicated to the job. Sometimes, it can error out if there are too many cores.
Any other suggestions for running high resolution WRF-LES simulations?
Attached are my name list. My rsl.error log is too large to attach but I can post some of it if anyone needs.
Thanks!
I've been trying to run some WRF-LES simulations at 50-25m resolution but seem to be having some trouble getting around some cfl violations. I am able to run a 200x300 point domain with 100m resolution no problem, but anything lower than that causes a stream of CFL violations. I have tried setting my e_vert from 40 to 200 using a 2000m ztop. They all seem to have similar CFL violations though.
I copied the /test/em_les/namelist.input physics section:
&physics
mp_physics = 0, 0, 0,
ra_lw_physics = 0, 0, 0,
ra_sw_physics = 0, 0, 0,
radt = 0, 0, 0,
sf_sfclay_physics = 1, 1, 1,
sf_surface_physics = 0, 0, 0,
bl_pbl_physics = 0, 0, 0,
bldt = 0, 0, 0,
cu_physics = 0, 0, 0,
cudt = 0, 0, 0,
isfflx = 2,
I've also tried varying the amount of cpu cores dedicated to the job. Sometimes, it can error out if there are too many cores.
Any other suggestions for running high resolution WRF-LES simulations?
Attached are my name list. My rsl.error log is too large to attach but I can post some of it if anyone needs.
Thanks!