[Wrf-users] SIGSEGV segmentation fault occurred while running wrf

[Xianxiang Li]

  Hello,

Maybe change the feedback option to 0 could be of help. Now you are 
using two-way nesting.

Regards,

Xianxiang

On 10/12/2010 03:12 AM, Eric Altshuler wrote:
> Hello,
>
> I doubt the seg fault is because of not having enough values for diff_6th_opt (missing values will be assigned a default value, which in this case is 0). Seg faults can have many causes, but a common one is insufficient stack size.
> Before running WRF, enter the following command depending on your shell:
>
> unlimit stacksize (if you use C shell)
>
> ulimit -s unlimited (if you use bash/Bourne shell)
>
> Then try running wrf.exe again.
>
> Best regards,
>
> Eric L. Altshuler
> Assistant Research Scientist
> Center for Ocean-Land-Atmosphere Studies
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705-3106
> USA
>
> E-mail: ela at cola.iges.org
> Phone: (301) 902-1257
> Fax: (301) 595-9793
>
> ----- Original Message -----
> From: "Feng Liu"<FLiu at azmag.gov>
> To: "jagabandhu panda"<jagabandhu at gmail.com>, "wrfhelp"<wrfhelp at ucar.edu>, wrf-users at ucar.edu
> Sent: Monday, October 11, 2010 11:33:49 AM
> Subject: Re: [Wrf-users] SIGSEGV segmentation fault occurred while running wrf
>
>
>
>
>
> Hi,
>
> The parameter “diff_6th_opt” in the session of&dynamics need to be set for each domain. For your case, it should be:
>
> diff_6th_opt = 0, 0, 0, 0, 0,
>
> Thanks.
>
> Feng
>
>
>
>
>
>
> From: wrf-users-bounces at ucar.edu [mailto:wrf-users-bounces at ucar.edu] On Behalf Of jagabandhu panda
> Sent: Sunday, October 10, 2010 4:05 AM
> To: wrfhelp; wrf-users at ucar.edu
> Subject: [Wrf-users] SIGSEGV segmentation fault occurred while running wrf
>
>
>
> Hi
>
> I have been trying to run WRF with 5 domains. Even though the real.exe runs successfully, the following errors come for the inner most domain the the mpi run exited. The errors are like as follows:
> --------------------------------------------------------------------------------------------------------------------------------------------
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> Image PC Routine Line Source
> wrf.exe 00000000017CA776 Unknown Unknown Unknown
> wrf.exe 00000000017C5596 Unknown Unknown Unknown
> wrf.exe 00000000017C264D Unknown Unknown Unknown
> wrf.exe 00000000017C0BDE Unknown Unknown Unknown
> wrf.exe 000000000130E1E5 Unknown Unknown Unknown
> wrf.exe 0000000001449223 Unknown Unknown Unknown
> wrf.exe 0000000000D94E41 Unknown Unknown Unknown
> wrf.exe 0000000000C1793A Unknown Unknown Unknown
> wrf.exe 00000000004D5D4A Unknown Unknown Unknown
> wrf.exe 00000000004D60CE Unknown Unknown Unknown
> wrf.exe 00000000004D60CE Unknown Unknown Unknown
> wrf.exe 00000000004D60CE Unknown Unknown Unknown
> wrf.exe 00000000004850B5 Unknown Unknown Unknown
> --------------------------------------------------------------------------------------------------------------------------------------
>
> For your reference I am sending the namelist options:
>
> &time_control
> run_days = 0,
> run_hours = 48,
> run_minutes = 0,
> run_seconds = 0,
> start_year = 2008, 2008, 2008, 2008, 2008,
> start_month = 04, 04, 04, 04, 04,
> start_day = 02, 02, 02, 02, 02,
> start_hour = 00, 00, 00, 00, 00,
> start_minute = 00, 00, 00, 00, 00,
> start_second = 00, 00, 00, 00, 00,
> end_year = 2008, 2008, 2008, 2008, 2008,
> end_month = 04, 04, 04, 04, 04,
> end_day = 03, 03, 03, 03, 03,
> end_hour = 00, 00, 00, 00, 00,
> end_minute = 00, 00, 00, 00, 00,
> end_second = 00, 00, 00, 00, 00,
> interval_seconds = 21600,
> input_from_file = .true.,.true.,.true.,.true.,.true.,
> history_interval = 180, 60, 60, 60, 60,
> frames_per_outfile = 1000, 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 = 90,
> time_step_fract_num = 0,
> time_step_fract_den = 0,
> max_dom = 5,
> e_we = 101, 136, 187, 265, 301,
> e_sn = 107, 145, 199, 283, 301,
> e_vert = 71, 71, 71, 71, 71,
> p_top_requested = 5000.0,
> num_metgrid_levels = 27,
> num_metgrid_soil_levels = 4,
> dx = 27000, 9000, 3000, 1000, 500,
> dy = 27000, 9000, 3000, 1000, 500,
> grid_id = 1, 2, 3, 4, 5,
> parent_id = 1, 1, 2, 3, 4,
> i_parent_start = 1, 27, 36, 50, 56,
> j_parent_start = 1, 31, 41, 61, 51,
> parent_grid_ratio = 1, 3, 3, 3, 2,
> parent_time_step_ratio = 1, 3, 3, 2, 5,
> p_top_requested = 5000
> feedback = 1,
> smooth_option = 1,
> eta_levels = 1.000, 0.9988, 0.9975, 0.9963, 0.995,
> 0.9938, 0.9926, 0.9913, 0.9901, 0.9889,
> 0.9876, 0.9864, 0.9849, 0.9831, 0.9809,
> 0.9783, 0.9752, 0.9715, 0.9672, 0.9622,
> 0.9564, 0.9497, 0.9419, 0.9329, 0.9227,
> 0.911, 0.8977, 0.8828, 0.8661, 0.8474,
> 0.8267, 0.804, 0.7793, 0.7425, 0.7032,
> 0.6574, 0.6127, 0.5571, 0.5048, 0.4487,
> 0.413, 0.3781, 0.3442, 0.3115, 0.2802,
> 0.2505, 0.2225, 0.1961, 0.1792, 0.1692,
> 0.1579, 0.1466, 0.1363, 0.1261, 0.1168,
> 0.1076, 0.0993, 0.0909, 0.0834, 0.0758,
> 0.0691, 0.0623, 0.0562, 0.0501, 0.0392,
> 0.0295, 0.0208, 0.0131, 0.0061, 0.003,
> 0.000,
> /
>
> &physics
> mp_physics = 5, 5, 5, 5, 5,
> ra_lw_physics = 1, 1, 1, 1, 1,
> ra_sw_physics = 1, 1, 1, 1, 1,
> radt = 30 30, 30, 30, 30,
> sf_sfclay_physics = 2, 2, 2, 2, 2,
> sf_surface_physics = 2, 2, 2, 2, 2,
> sf_urban_physics = 0, 0, 0, 0, 0,
> bl_pbl_physics = 2, 2, 2, 2, 2,
> bldt = 0, 0, 0, 0, 0,
> cu_physics = 2, 2, 2, 2, 2,
> cudt = 5, 5, 5, 5, 5,
> isfflx = 1,
> ifsnow = 0,
> icloud = 1,
> surface_input_source = 1,
> num_soil_layers = 4,
> maxiens = 1,
> maxens = 3,
> maxens2 = 3,
> maxens3 = 16,
> ensdim = 144,
> /
>
> &fdda
> /
>
> &dynamics
> w_damping = 0,
> diff_opt = 1,
> km_opt = 4,
> diff_6th_opt = 0,
> base_temp = 290.,
> damp_opt = 3,
> zdamp = 5000., 5000., 5000., 5000., 5000.,
> dampcoef = 0.01, 0.01, 0.01, 0.01, 0.01,
> khdif = 0, 0, 0, 0, 0,
> kvdif = 0, 0, 0, 0, 0,
> non_hydrostatic = .true., .true., .true., .true., .true.,
> moist_adv_opt = 1, 1, 1, 1, 1,
> scalar_adv_opt = 1, 1, 1, 1, 1,
> /
>
> &bdy_control
> spec_bdy_width = 5,
> spec_zone = 1,
> relax_zone = 4,
> specified = .true., .false., .false., .false., .false.,
> nested = .false., .true., .true., .true., .true.,
> /
>
> &grib2
> /
>
> &namelist_quilt
> nio_tasks_per_group = 0,
> nio_groups = 1,
> /
>
>
> Please suggest how I can overcome the problem.
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