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我在学校大型机上跑WRF,根据实验需求设计了三层嵌套网格,不同于简单的三层嵌套,我的最内层的网格有五个,师兄说只要子区域范围没有重叠就可以,我设计了25km、5km、1km的网格,模拟时间24小时。我知道并行运算的核数不是越多越好,但是我在服务器上提交的作业已经高达160个核,./wrf.exe还是会报段错误,为了避免cfl问题,我的步长已经是25s了。想请教一下除了继续增加核数,还有其他办法吗?下面是我的namelist.input文件
&time_control
run_days = 0,
run_hours = 23,
run_minutes = 0,
run_seconds = 0,
start_year = 1979, 1979, 1979, 1979, 1979, 1979, 1979,
start_month = 06, 06, 06, 06, 06, 06, 06,
start_day = 01, 01, 01, 01, 01, 01, 01,
start_hour = 00, 00, 00, 00, 00, 01, 01,
end_year = 1979, 1979, 1979, 1979, 1979, 1979, 1979,
end_month = 06, 06, 06, 06, 06, 06, 06,
end_day = 01, 01, 01, 01, 01, 01, 01,
end_hour = 23, 23, 23, 23, 23, 23, 23,
interval_seconds = 3600,
input_from_file = .true.,.true.,.true.,
history_interval = 60, 60, 60, 60, 60, 60, 60,
frames_per_outfile = 1, 1, 1, 1, 1, 1, 1,
restart = .false.,
restart_interval = 7200,
io_form_history = 2,
io_form_restart = 2,
io_form_input = 2,
io_form_boundary = 2,
/
&domains
time_step = 25,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 7,
e_we = 344, 786, 241, 576, 236, 326, 321,
e_sn = 269, 556, 256, 261, 261, 376, 306,
e_vert = 40, 40, 40, 40, 40, 40, 40,
p_top_requested = 5000,
num_metgrid_levels = 38,
num_metgrid_soil_levels = 4,
dx = 25000,5000, 1000, 1000, 1000, 1000, 1000,
dy = 25000,5000, 1000, 1000, 1000, 1000, 1000,
grid_id = 1, 2, 3, 4, 5, 6, 7,
parent_id = 1, 1, 2, 2, 2, 2, 2,
i_parent_start = 1, 95, 241, 280, 436, 466, 435,
j_parent_start = 1, 80, 45, 103, 154, 258, 389,
parent_grid_ratio = 1, 5, 5, 5, 5, 5, 5,
parent_time_step_ratio = 1, 5, 5, 5, 5, 5, 5,
feedback = 1,
smooth_option = 0,
smooth_cg_topo =.true.,
/
&physics
mp_physics = 2, 2, 2, 2, 2, 2, 2,
cu_physics = 1, 1, 0, 0, 0, 0, 0,
ra_lw_physics = 1, 1, 1, 1, 1, 1, 1,
ra_sw_physics = 1, 1, 1, 1, 1, 1, 1,
bl_pbl_physics = 1, 1, 1, 1, 1, 1, 1,
sf_sfclay_physics = 1, 1, 1, 1, 1, 1, 1,
sf_surface_physics = 2, 2, 2, 2, 2, 2, 2,
radt = 90, 90, 90, 90, 90, 90, 90,
bldt = 0, 0, 0, 0, 0, 0, 0,
cudt = 0, 0, 0, 0, 0, 0, 0,
icloud = 1,
num_land_cat = 21,
sf_urban_physics = 0, 0, 0, 0, 0, 0, 0,
/
&fdda
/
&dynamics
hybrid_opt = 2,
w_damping = 0,
diff_opt = 1, 1, 1, 1, 1, 1, 1,
km_opt = 4, 4, 4, 4, 4, 4, 4,
diff_6th_opt = 0, 0, 0, 0, 0, 0, 0,
diff_6th_factor = 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12,
base_temp = 290.
damp_opt = 3,
zdamp = 5000., 5000., 5000., 5000., 5000., 5000., 5000.,
dampcoef = 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2,
khdif = 0, 0, 0, 0, 0, 0, 0,
kvdif = 0, 0, 0, 0, 0, 0, 0,
non_hydrostatic = .true., .true., .true.,.true.,.true.,.true.,.true.,
moist_adv_opt = 1, 1, 1, 1, 1, 1, 1,
scalar_adv_opt = 1, 1, 1, 1, 1, 1, 1,
gwd_opt = 1, 1, 0, 0, 0, 0, 0,
epssm = 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2,
w_damping = 1,
/
&bdy_control
spec_bdy_width = 5,
specified = .true.
/
&grib2
/
&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
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