[Wrf-users] model stops running after few minutes

Jagabandhu Panda jagabandhu at gmail.com
Sat Sep 14 06:46:12 MDT 2013


Hello

     I am trying to run the model for a nested configuration. However, my
model stops running after few minutes!!! I found this to be present in all
the three versions i. e. v3.3.1, v3.4.1 and v3.5. I think, I am doing
something wrong. Please suggest something to overcome the issue. My
namelist options are as follows:

---------------------------------------------------------------------------------------------------------
 &time_control
 run_days                            = 0,
 run_hours                           = 84,
 run_minutes                         = 0,
 run_seconds                         = 0,
 start_year                          = 2013, 2013, 2013, 2013,
 start_month                         = 06,   06,   06,   06,
 start_day                           = 14,   14,   14,   14,
 start_hour                          = 12,   12,   12,   12,
 start_minute                        = 00,   00,   00,   00,
 start_second                        = 00,   00,   00,   00,
 end_year                            = 2013, 2013, 2013, 2013,
 end_month                           = 06,   06,   06,   06,
 end_day                             = 18,   18,   18,   18,
 end_hour                            = 00,   00,   00,   00,
 end_minute                          = 00,   00,   00,   00,
 end_second                          = 00,   00,   00,   00,
 interval_seconds                    = 21600
 input_from_file                     = .true.,.true.,.true.,.true.,
 history_interval                    = 180,  180,  60,   60,
 frames_per_outfile                  = 1000, 1000, 1000, 1000,
 restart                             = .false.,
 restart_interval                    = 5000,
 io_form_history                     = 2,
 io_form_restart                     = 2,
 io_form_input                       = 2,
 io_form_boundary                    = 2,
 debug_level                         = 0,
 /

 &domains
 time_step                           = 120,
 time_step_fract_num                 = 0,
 time_step_fract_den                 = 1,
 max_dom                             = 4,
 e_we                                = 131,   271,   472,   322,
 e_sn                                = 131,   262,   421,   313,
 e_vert                              = 38,    38,    38,    38,
 p_top_requested                     = 5000,
 num_metgrid_levels                  = 27,
 num_metgrid_soil_levels             = 4,
 dx                                  = 27000, 9000,  3000,  1000,
 dy                                  = 27000, 9000,  3000,  1000,
 grid_id                             = 1,     2,     3,     4,
 parent_id                           = 0,     1,     2,     3,
 i_parent_start                      = 1,     25,    51,    171,
 j_parent_start                      = 1,     25,    41,    185,
 parent_grid_ratio                   = 1,     3,     3,     3,
 parent_time_step_ratio              = 1,     3,     4,     5,
 feedback                            = 1,
 smooth_option                       = 0
 smooth_cg_topo                      = .true.,
 eta_levels                          = 1.000, 0.9940, 0.9920, 0.9900,
0.9875, 0.985, 0.982, 0.978, 0.973, 0.967, 0.959, 0.951, 0.941, 0.927,
0.908, 0.886, 0.860, 0.830, 0.795, 0.755, 0.715, 0.675, 0.635, 0.595,
0.555, 0.515, 0.475, 0.435, 0.395, 0.355, 0.315, 0.275, 0.235, 0.195,
0.155, 0.110, 0.060, 0.000,
 /

 &physics
 mp_physics                          = 1,     1,     1,     1,
 ra_lw_physics                       = 1,     1,     1,     1,
 ra_sw_physics                       = 1,     1,     1,     1,
 radt                                = 30,    30,    30,    30,
 sf_sfclay_physics                   = 1,     1,     1,     1,
 sf_surface_physics                  = 2,     2,     2,     2,
 bl_pbl_physics                      = 1,     1,     1,     1,
 bldt                                = 0,     0,     0,     0,
 cu_physics                          = 1,     1,     0,     0,
 cudt                                = 5,     5,     5,     5,
 isfflx                              = 1,
 ifsnow                              = 0,
 icloud                              = 1,
 surface_input_source                = 1,
 num_soil_layers                     = 4,
 sf_urban_physics                    = 0,     0,     0,     0,
 num_land_cat                        = 20,
 /

 &fdda
 /

 &dynamics
 w_damping                           = 0,
 rk_ord                              = 3,
 diff_opt                            = 1,
 km_opt                              = 4,
 diff_6th_opt                        = 0,      0,      0,      0,
 diff_6th_factor                     = 0.12,   0.12,   0.12,   0.12,
 base_temp                           = 290.
 damp_opt                            = 0,
 zdamp                               = 5000.,  5000.,  5000.,  5000.,
 dampcoef                            = 0.2,    0.2,    0.2     0.2,
 khdif                               = 0,      0,      0,      0,
 kvdif                               = 0,      0,      0,      0,
 non_hydrostatic                     = .true., .true., .true., .true.,
 moist_adv_opt                       = 1,      1,      1,      1,
 scalar_adv_opt                      = 1,      1,      1,      1,
 epssm                               = 0.5,    0.5,    0.5,    0.5,
 /

 &bdy_control
 spec_bdy_width                      = 5,
 spec_zone                           = 1,
 relax_zone                          = 4,
 specified                           = .true., .false.,.false.,.false.,
 nested                              = .false., .true., .true., .true.,
 /
 &grib2
 /

 &namelist_quilt
 nio_tasks_per_group = 0,
 nio_groups = 1,
 /
----------------------------------------------------------------------------------------------------------

Please note that I am using PGI compiler with gcc for compiling the model
using dm+sm in open mpi linux x86_64 environment. I am not able to
understand the exact problem. It looks like a run time issue. I feel I am
not taking some namelist option in appropriate manner. However, I am not
able to solve this.

 Initially I tried with Milbrand MP but the model just stopped running
after 1-2 mins. When I changed to Kesler MP, it ran for some time and then
aborted. Again, after I changed the radt value from 20 to 30 mins it was
running for some time more but again stopped on the way!


Please suggest something if possible.

Best regards
-- Jagabandhu




####################################################################
Dr. Jagabandhu Panda, PhD
Research Center for Environmental Changes, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nankang District, Taipei
Ph: +886-978655040 (M) / +886 - 2 - 26513171 (R)
Email: jpanda at ntu.edu.sg, jagabandhu at gate.sinica.edu.tw
Personal Web Page: http://jagabandhupanda.wordpress.com/
####################################################################
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