Real.exe Error - WRF-ARW Online Tutorial (Single Domain)

[Davidstewart7]

Hello,

I'm attempting to run the WRF-ARW Online Tutorial for a Single Domain (ARW Online Tutorial) and encounter an error when I run real.exe.

I've included my namelist.wps, namelist.input, rsl.error.0000 and rsl.out.0000 files and the modules I have loaded on computecanada. I've also included a met_em.d01 file that I've generated - please let me know if you need all of them.

If there is anything else you need, please let me know.

Thank you for your help,
Dave

 

[Ming Chen]

Please change your namelist option from:
z_damp =5000.
to
zdamp =5000,

then rerun this case.

 

[Davidstewart7]

Ming - Thank you for the help & that fixed the issue!

I just ran wrf.exe and encountered another issue. Are you able to see what went wrong - I've followed the WRF tutorial, but it seems some of the information within it is likely wrong or outdated (ie. the issue above) and I do not have the experience yet to figure it out but have tried to.

I've included the new rsl.error.0000, rsl.error.0001, rsl.out.0000, rsl.out.0001. I've uploaded the wrfbdy_01 and wrfinput_d01 to the forum uploads. If you require anything else, please let me know.

Thank again,
Dave

 

[Ming Chen]

Hi David,
In your rsl.error.0000, the error message is:

FATAL CALLED FROM FILE:  <stdin>  LINE:    6317
ERROR reading namelist namelist_quilt

However, looking at your namelist.input, I could see the options below, which is totally fine:

 &namelist_quilt
 nio_tasks_per_group = 0,
 nio_groups = 1,
 /

I am perplexed by the issue in this case. Please confirm you run the case with the namelist.input you posted.

 

[Davidstewart7]

Hi Ming - i did run real.exe (successfully) and wrf.exe (unsuccessfully) with the namelist.input attached.

Good news though - a colleague was able to help me and the issue was resolved by reducing the time_step from 150 to 120 and including the below to my namelist.input

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


Thanks for helping me with this!

Cheers,
Dave

 

[Ming Chen]

Dave,
Thank you for the update. I am a little confused about the quilt options, i.e., can you confirm that the following options work,

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

But the previous one shown below didn't work?

&namelist_quilt
nio_groups=1,
nio_tasks_per_group=0,
/

 

[Davidstewart7]

Hi Ming,

I will have an answer for you Thursday afternoon - I have a few questions that I need to look into first.

The good news is that real.exe and wrf.exe did work - I just can reproduce the results due to a separate issue.

Thanks for your help,
Dave

 

[Davidstewart7]

Hi Ming - sorry for the delayed response.

I just re-ran the model with both variants of the &namelist_quilt mentioned above successfully.

At the time, I didn't use the below &namelist_quilt - but it does work.

&namelist_quilt
nio_groups=1,
nio_tasks_per_group=0,
/

Cheers,
Dave

 

[Ming Chen]

Dave,
Thanks for the update. I am glad it works.