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<p class="MsoNormal">Hi, <o:p></o:p></p>
<p class="MsoNormal">The parameter “diff_6th_opt” in the session of &dynamics need to be set for each domain. For your case, it should be:<o:p></o:p></p>
<p class="MsoNormal">diff_6th_opt = 0, 0, 0, 0, 0, <o:p></o:p></p>
<p class="MsoNormal">Thanks.<o:p></o:p></p>
<p class="MsoNormal">Feng<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> wrf-users-bounces@ucar.edu [mailto:wrf-users-bounces@ucar.edu]
<b>On Behalf Of </b>jagabandhu panda<br>
<b>Sent:</b> Sunday, October 10, 2010 4:05 AM<br>
<b>To:</b> wrfhelp; wrf-users@ucar.edu<br>
<b>Subject:</b> [Wrf-users] SIGSEGV segmentation fault occurred while running wrf<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi<br>
<br>
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:<br>
--------------------------------------------------------------------------------------------------------------------------------------------<br>
forrtl: severe (174): SIGSEGV, segmentation fault occurred<br>
Image PC Routine Line Source<br>
wrf.exe 00000000017CA776 Unknown Unknown Unknown<br>
wrf.exe 00000000017C5596 Unknown Unknown Unknown<br>
wrf.exe 00000000017C264D Unknown Unknown Unknown<br>
wrf.exe 00000000017C0BDE Unknown Unknown Unknown<br>
wrf.exe 000000000130E1E5 Unknown Unknown Unknown<br>
wrf.exe 0000000001449223 Unknown Unknown Unknown<br>
wrf.exe 0000000000D94E41 Unknown Unknown Unknown<br>
wrf.exe 0000000000C1793A Unknown Unknown Unknown<br>
wrf.exe 00000000004D5D4A Unknown Unknown Unknown<br>
wrf.exe 00000000004D60CE Unknown Unknown Unknown<br>
wrf.exe 00000000004D60CE Unknown Unknown Unknown<br>
wrf.exe 00000000004D60CE Unknown Unknown Unknown<br>
wrf.exe 00000000004850B5 Unknown Unknown Unknown<br>
--------------------------------------------------------------------------------------------------------------------------------------
<br>
<br>
For your reference I am sending the namelist options:<br>
<br>
&time_control<br>
run_days = 0,<br>
run_hours = 48,<br>
run_minutes = 0,<br>
run_seconds = 0,<br>
start_year = 2008, 2008, 2008, 2008, 2008,<br>
start_month = 04, 04, 04, 04, 04,<br>
start_day = 02, 02, 02, 02, 02,<br>
start_hour = 00, 00, 00, 00, 00,<br>
start_minute = 00, 00, 00, 00, 00,<br>
start_second = 00, 00, 00, 00, 00,<br>
end_year = 2008, 2008, 2008, 2008, 2008,<br>
end_month = 04, 04, 04, 04, 04,<br>
end_day = 03, 03, 03, 03, 03,<br>
end_hour = 00, 00, 00, 00, 00,<br>
end_minute = 00, 00, 00, 00, 00,<br>
end_second = 00, 00, 00, 00, 00,<br>
interval_seconds = 21600,<br>
input_from_file = .true.,.true.,.true.,.true.,.true.,<br>
history_interval = 180, 60, 60, 60, 60,<br>
frames_per_outfile = 1000, 1000, 1000, 1000, 1000,<br>
restart = .false.,<br>
restart_interval = 5000,<br>
io_form_history = 2,<br>
io_form_restart = 2,<br>
io_form_input = 2,<br>
io_form_boundary = 2,<br>
debug_level = 0,<br>
/<br>
&domains<br>
time_step = 90,<br>
time_step_fract_num = 0,<br>
time_step_fract_den = 0,<br>
max_dom = 5,<br>
e_we = 101, 136, 187, 265, 301,<br>
e_sn = 107, 145, 199, 283, 301,<br>
e_vert = 71, 71, 71, 71, 71,<br>
p_top_requested = 5000.0,<br>
num_metgrid_levels = 27,<br>
num_metgrid_soil_levels = 4,<br>
dx = 27000, 9000, 3000, 1000, 500,<br>
dy = 27000, 9000, 3000, 1000, 500,<br>
grid_id = 1, 2, 3, 4, 5,<br>
parent_id = 1, 1, 2, 3, 4,<br>
i_parent_start = 1, 27, 36, 50, 56,<br>
j_parent_start = 1, 31, 41, 61, 51,<br>
parent_grid_ratio = 1, 3, 3, 3, 2,<br>
parent_time_step_ratio = 1, 3, 3, 2, 5,<br>
p_top_requested = 5000<br>
feedback = 1,<br>
smooth_option = 1,<br>
eta_levels = 1.000, 0.9988, 0.9975, 0.9963, 0.995,<br>
0.9938, 0.9926, 0.9913, 0.9901, 0.9889,<br>
0.9876, 0.9864, 0.9849, 0.9831, 0.9809,<br>
0.9783, 0.9752, 0.9715, 0.9672, 0.9622,<br>
0.9564, 0.9497, 0.9419, 0.9329, 0.9227,<br>
0.911, 0.8977, 0.8828, 0.8661, 0.8474,<br>
0.8267, 0.804, 0.7793, 0.7425, 0.7032,<br>
0.6574, 0.6127, 0.5571, 0.5048, 0.4487,<br>
0.413, 0.3781, 0.3442, 0.3115, 0.2802,<br>
0.2505, 0.2225, 0.1961, 0.1792, 0.1692,<br>
0.1579, 0.1466, 0.1363, 0.1261, 0.1168,<br>
0.1076, 0.0993, 0.0909, 0.0834, 0.0758,<br>
0.0691, 0.0623, 0.0562, 0.0501, 0.0392,<br>
0.0295, 0.0208, 0.0131, 0.0061, 0.003,<br>
0.000,<br>
/<br>
<br>
&physics<br>
mp_physics = 5, 5, 5, 5, 5,<br>
ra_lw_physics = 1, 1, 1, 1, 1,<br>
ra_sw_physics = 1, 1, 1, 1, 1,<br>
radt = 30 30, 30, 30, 30,<br>
sf_sfclay_physics = 2, 2, 2, 2, 2,<br>
sf_surface_physics = 2, 2, 2, 2, 2,<br>
sf_urban_physics = 0, 0, 0, 0, 0,<br>
bl_pbl_physics = 2, 2, 2, 2, 2,<br>
bldt = 0, 0, 0, 0, 0,<br>
cu_physics = 2, 2, 2, 2, 2,<br>
cudt = 5, 5, 5, 5, 5,<br>
isfflx = 1,<br>
ifsnow = 0,<br>
icloud = 1,<br>
surface_input_source = 1,<br>
num_soil_layers = 4,<br>
maxiens = 1,<br>
maxens = 3,<br>
maxens2 = 3,<br>
maxens3 = 16,<br>
ensdim = 144,<br>
/<br>
<br>
&fdda<br>
/<br>
<br>
&dynamics<br>
w_damping = 0,<br>
diff_opt = 1,<br>
km_opt = 4,<br>
diff_6th_opt = 0,<br>
base_temp = 290.,<br>
damp_opt = 3,<br>
zdamp = 5000., 5000., 5000., 5000., 5000.,<br>
dampcoef = 0.01, 0.01, 0.01, 0.01, 0.01,<br>
khdif = 0, 0, 0, 0, 0,<br>
kvdif = 0, 0, 0, 0, 0,<br>
non_hydrostatic = .true., .true., .true., .true., .true.,<br>
moist_adv_opt = 1, 1, 1, 1, 1,<br>
scalar_adv_opt = 1, 1, 1, 1, 1,<br>
/<br>
<br>
&bdy_control<br>
spec_bdy_width = 5,<br>
spec_zone = 1,<br>
relax_zone = 4,<br>
specified = .true., .false., .false., .false., .false.,<br>
nested = .false., .true., .true., .true., .true.,<br>
/<br>
<br>
&grib2<br>
/<br>
<br>
&namelist_quilt<br>
nio_tasks_per_group = 0,<br>
nio_groups = 1,<br>
/<br>
<br>
<br>
Please suggest how I can overcome the problem.<o:p></o:p></p>
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