how to run ndown?

Discuss the nesting capability within the model itself and any problems you might have run into.

how to run ndown?

Postby you2 » Fri Apr 16, 2010 11:14 am

I try to run a “one-way nested run”. So, I follow the instruction at: http://www.mmm.ucar.edu/wrf/users/wrfv2/runwrf.html, and finished step 2 “ Rename this wrfinput_d01 file to wrfndi_d02”. I also have the coarse domain output: wrfout_d01...

In step 3, the instruction says:

“- Run ndown.exe, with inputs from the coarse grid wrfout files, and wrfndi_d02 file generated from Step 2 above. This will produce wrfinput_d02 and wrfbdy_d02 files.”

But I don’t know how to set this in namelist.input to accomplish “with inputs from the coarse grid wrfout files, and wrfndi_d02 file”.

If I just add:
io_form_boundary =2
debug_level =0
auxinput2_inname = "wrfout_d01"
/

ndown.exe will still give an error "ndown: Please set io_form_auxinput2 in the time_control namelist record (probably to 2)".


Thanks for the help.
you2
 
Posts: 19
Joined: Thu May 29, 2008 8:18 am

Re: how to run ndown?

Postby Ancy » Thu Aug 19, 2010 9:18 am

I am getting the following error while running ndown- 1way nesting using 2 inputs at step3 according to the insruction. At step3, wrfinput_d01 and wrfbdy_d02 is generated and then the error occurs " real: error opening FG input for reading: wrfndi_d02"



Ntasks in X 4, ntasks in Y 4
NDOWN_EM V3.1 PREPROCESSOR
*************************************
Parent domain
ids,ide,jds,jde 1 370 1 308
ims,ime,jms,jme 271 375 71 161
ips,ipe,jps,jpe 278 370 78 154
*************************************
DYNAMICS OPTION: Eulerian Mass Coordinate
NDOWN_EM V3.1 PREPROCESSOR
*************************************
Nesting domain
ids,ide,jds,jde 1 616 1 493
ims,ime,jms,jme 453 621 114 258
ips,ipe,jps,jpe 463 616 124 246
INTERMEDIATE domain
ids,ide,jds,jde 80 290 80 249
ims,ime,jms,jme 226 295 113 173
ips,ipe,jps,jpe 236 292 123 163
*************************************
ndown_em: SUCCESS COMPLETE NDOWN_EM INIT

FATAL CALLED FROM FILE: <stdin> LINE: 488
real: error opening FG input for reading: wrfndi_d02
-------------------------------------------
[cli_7]: aborting job:
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 7


Thanks
Ancy
Ancy
 
Posts: 5
Joined: Wed Aug 04, 2010 7:43 am


Return to Nesting

Who is online

Users browsing this forum: No registered users and 3 guests