WRF always stops at the same location with cfl error

[William.Hatheway]

I am running a case that and always seems to stop at the same time.

Things I have tried:

1. Increased number of cores (8 to 16 using mpirun -np 16 ./wrf.exe)
2. Increased ptop (5000 to 3000)
3. Increased e_vert (45 to 50)

Full level index = 1 Height = 0.0 m
Full level index = 2 Height = 50.0 m Thickness = 50.0 m
Full level index = 3 Height = 113.9 m Thickness = 63.9 m
Full level index = 4 Height = 195.2 m Thickness = 81.3 m
Full level index = 5 Height = 298.0 m Thickness = 102.8 m
Full level index = 6 Height = 427.2 m Thickness = 129.1 m
Full level index = 7 Height = 587.8 m Thickness = 160.7 m
Full level index = 8 Height = 785.5 m Thickness = 197.7 m
Full level index = 9 Height = 1025.6 m Thickness = 240.0 m
Full level index = 10 Height = 1312.6 m Thickness = 287.0 m
Full level index = 11 Height = 1649.6 m Thickness = 337.0 m
Full level index = 12 Height = 2037.7 m Thickness = 388.2 m
Full level index = 13 Height = 2475.6 m Thickness = 437.9 m
Full level index = 14 Height = 2959.3 m Thickness = 483.7 m
Full level index = 15 Height = 3485.1 m Thickness = 525.8 m
Full level index = 16 Height = 4056.1 m Thickness = 570.9 m
Full level index = 17 Height = 4675.0 m Thickness = 618.9 m
Full level index = 18 Height = 5344.9 m Thickness = 669.8 m
Full level index = 19 Height = 6004.5 m Thickness = 659.6 m
Full level index = 20 Height = 6652.6 m Thickness = 648.1 m
Full level index = 21 Height = 7289.2 m Thickness = 636.6 m
Full level index = 22 Height = 7914.3 m Thickness = 625.1 m
Full level index = 23 Height = 8528.0 m Thickness = 613.6 m
Full level index = 24 Height = 9130.1 m Thickness = 602.1 m
Full level index = 25 Height = 9720.7 m Thickness = 590.6 m
Full level index = 26 Height = 10299.9 m Thickness = 579.1 m
Full level index = 27 Height = 10867.5 m Thickness = 567.6 m
Full level index = 28 Height = 11423.6 m Thickness = 556.1 m
Full level index = 29 Height = 11968.3 m Thickness = 544.6 m
Full level index = 30 Height = 12501.4 m Thickness = 533.1 m
Full level index = 31 Height = 13023.1 m Thickness = 521.6 m
Full level index = 32 Height = 13541.6 m Thickness = 518.6 m
Full level index = 33 Height = 14060.2 m Thickness = 518.6 m
Full level index = 34 Height = 14578.8 m Thickness = 518.6 m
Full level index = 35 Height = 15097.3 m Thickness = 518.6 m
Full level index = 36 Height = 15615.9 m Thickness = 518.6 m
Full level index = 37 Height = 16134.5 m Thickness = 518.6 m
Full level index = 38 Height = 16653.0 m Thickness = 518.6 m
Full level index = 39 Height = 17171.6 m Thickness = 518.6 m
Full level index = 40 Height = 17690.2 m Thickness = 518.6 m
Full level index = 41 Height = 18208.7 m Thickness = 518.6 m
Full level index = 42 Height = 18727.3 m Thickness = 518.6 m
Full level index = 43 Height = 19245.9 m Thickness = 518.6 m
Full level index = 44 Height = 19764.4 m Thickness = 518.6 m
Full level index = 45 Height = 20283.0 m Thickness = 518.6 m
Full level index = 46 Height = 20801.6 m Thickness = 518.6 m
Full level index = 47 Height = 21320.1 m Thickness = 518.6 m
Full level index = 48 Height = 21838.7 m Thickness = 518.6 m
Full level index = 49 Height = 22357.3 m Thickness = 518.6 m
Full level index = 50 Height = 22875.8 m Thickness = 518.6 m

4. Decreased time_step (90 to 60)

5, Checked rsl files:

workhorse@workhorse-MS-7D91:~/WRF_Intel/WRFV4.5.1/run$ grep -i FATAL rsl.*

workhorse@workhorse-MS-7D91:~/WRF_Intel/WRFV4.5.1/run$ grep -i error rsl.*

workhorse@workhorse-MS-7D91:~/WRF_Intel/WRFV4.5.1/run$ grep -i cfl rsl.*
rsl.error.0008:d02 2023-09-05_03:00:48 9 points exceeded v_cfl = 2 in domain d02 at time 2023-09-05_03:00:48 hours
rsl.error.0008:d02 2023-09-05_03:00:48 Max W: 42 212 3 W: 5.15 w-cfl: 3.28 dETA: 0.01
rsl.out.0008:d02 2023-09-05_03:00:48 9 points exceeded v_cfl = 2 in domain d02 at time 2023-09-05_03:00:48 hours
rsl.out.0008:d02 2023-09-05_03:00:48 Max W: 42 212 3 W: 5.15 w-cfl: 3.28 dETA: 0.01

workhorse@workhorse-MS-7D91:~/WRF_Intel/WRFV4.5.1/run$ grep -i SIGSEGV rsl.*
rsl.error.0008:forrtl: severe (174): SIGSEGV, segmentation fault occurred
workhorse@workhorse-MS-7D91:~/WRF_Intel/WRFV4.5.1/run$

I have included the namelists and rsl out files. I'm not sure what else to do.

 

[Ming Chen]

Please set the following options in your nameless.input:

(1) w_damping = 1
(2) km_opt = 4, 4,
(3) have_bcs_moist = .False.
have_bcs_scalar = .False.

The rerun the case. please let me know whether it works.

 

[William.Hatheway]

Please set the following options in your nameless.input:

(1) w_damping = 1
(2) km_opt = 4, 4,
(3) have_bcs_moist = .False.
have_bcs_scalar = .False.

The rerun the case. please let me know whether it works.

@Ming Chen

It worked, I didn't need w_damping