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在模拟WRF真实个例时,我将节点数从4减少到1,rsl文件内一直出现以下问题:
taskid: 87 hostname: c07n05
Quilting with 1 groups of 0 I/O tasks.
Ntasks in X 8 , ntasks in Y 14
*************************************
Configuring physics suite 'conus'
mp_physics: 28* 28* 28*
cu_physics: 0* 0* 0*
ra_lw_physics: 4 4 4
ra_sw_physics: 4 4 4
bl_pbl_physics: 2 2 0*
sf_sfclay_physics: 2 2 2
sf_surface_physics: 2 2 2
(* = option overrides suite setting)
*************************************
Domain # 1: dx = 2700.000 m
Domain # 2: dx = 900.000 m
Domain # 3: dx = 300.000 m
For domain 1 , the domain size is too small for this many processors, or the decomposition aspect ratio is poor.
Minimum decomposed computational patch size, either x-dir or y-dir, is 10 grid cells.
e_we = 133, nproc_x = 8, with cell width in x-direction = 16
e_sn = 133, nproc_y = 14, with cell width in y-direction = 9
--- ERROR: Reduce the MPI rank count, or redistribute the tasks.
-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE: <stdin> LINE: 2385
NOTE: 1 namelist settings are wrong. Please check and reset these options
-------------------------------------------
请问哪位大神知道这是什么原因吗,是节点数和核数太大了(已经将节点数降低至1,核数是28),还是模拟区域设置网格数太小了呢?
最后附上namelist.input:
&time_control
run_days = 0,
run_hours = 24,
run_minutes = 0,
run_seconds = 0,
start_year = 2022, 2022, 2022,
start_month = 04, 04, 04,
start_day = 30, 30, 30,
start_hour = 00, 00, 00,
end_year = 2022, 2022, 2022,
end_month = 05, 05, 05,
end_day = 01, 01, 01,
end_hour = 00, 00, 00,
interval_seconds = 21600
input_from_file = .true.,.true.,.true.,
history_interval = 60, 60, 60,
frames_per_outfile = 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 = 15,
time_step_fract_num = 0,
time_step_fract_den = 0,
max_dom = 3,
e_we = 133, 223, 355,
e_sn = 133, 223, 355,
e_vert = 54, 54, 54,
p_top_requested = 5000,
num_metgrid_levels = 34,
num_metgrid_soil_levels = 4,
dx = 2700,900,300,
dy = 2700,900,300,
grid_id = 1, 2, 3,
parent_id = 1, 1, 2,
i_parent_start = 1, 32, 53,
j_parent_start = 1, 32, 53,
parent_grid_ratio = 1, 3, 3,
parent_time_step_ratio = 1, 3, 3,
feedback = 1,
smooth_option = 0
/
&physics
physics_suite = 'CONUS'
mp_physics = 28, 28, 28,
cu_physics = 0, 0, 0,
ra_lw_physics = -1, -1, -1,
ra_sw_physics = -1, -1, -1,
bl_pbl_physics = -1, -1, 0,
sf_sfclay_physics = -1, -1, -1,
sf_surface_physics = -1, -1, -1,
radt = 30, 30, 30,
bldt = 0, 0, 0,
cudt = 5, 5, 5,
icloud = 1,
num_land_cat = 21,
sf_urban_physics = 0, 0, 0,
/
&fdda
/
&dynamics
hybrid_opt = 2,
w_damping = 0,
diff_opt = 1, 1, 1,
km_opt = 4, 4, 2,
diff_6th_opt = 0, 0, 0,
diff_6th_factor = 0.12, 0.12, 0.12,
base_temp = 290.
damp_opt = 3,
zdamp = 5000., 5000., 5000.,
dampcoef = 0.2, 0.2, 0.2
khdif = 0, 0, 0,
kvdif = 0, 0, 0,
non_hydrostatic = .true., .true., .true.,
moist_adv_opt = 1, 1, 1,
scalar_adv_opt = 1, 1, 1,
gwd_opt = 1, 1, 0,
/
&bdy_control
spec_bdy_width = 5,
specified = .true.
/
&grib2
/
&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/
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