Found in rsl.out.0003 : --- ERROR: Time step too large

Questions and other topics related to UEMS 18.
Post Reply
y.zeng
Posts: 1
Joined: Tue Oct 18, 2022 8:08 pm

Found in rsl.out.0003 : --- ERROR: Time step too large

Post by y.zeng »

I encountered this problem, which seems not resolvable on my side. And i have a class of students waiting for solutions. :oops:

Could any of you help here? :)

I pasted here the message i got:
yijianzeng$ ems_run


Starting UEMS program ems_run (V22.3.1) on wrf-OptiPlex-7040 at Tue Oct 18 20:09:28 2022 UTC


I. Attempting to make sense of your configuration

* Simulation start and end times:

Domain Start End
------------------------------------------------------
1 2007-08-17_18:00:00 2007-08-19_06:00:00

Primary domain simulation length will be 36 hours.


II. Creating initial and boundary condition files for domain 1

* The WRF REAL will use the following nodes and cores:

4 processors on wrf-OptiPlex-7040 (localhost) (1 tile per processor)

* Creating initial and boundary conditions - Success! Let's do it again!

Initial and boundary condition files created in 3 seconds

☺ Moving on to bigger and better delusions of grandeur


III. Running WRF ARW while thinking happy thoughts

* The WRF ARW core will use the following nodes and cores:

4 processors on wrf-OptiPlex-7040 (localhost) (1 tile per processor)


* A large time step of 43.2 seconds will be used for this simulation


* Output Frequency Primary wrfout
--------------------------------------------------------
Domain 01 : 1 hour
--------------------------------------------------------


* Running your simulation with fearlessness!

You can play the Theremin to the progress of the simulation while watching:

% tail -f /home/wrf/uems/runs/yijianzeng/rsl.out.0000

Unless you have something better to do with your time.


! Your simulation failed (1 - Death of Controlling Process or Hangup)

Found in rsl.out.0003 : --- ERROR: Time step too large



☺ You're so close. You can almost taste the bitter smell of success.


Your UEMS Simulation block party was busted at Tue Oct 18 20:09:36 2022 UTC - Ya know, 'cause stuff just happens

Mark Twain wished he had said: "Think Globally, Model Locally!"
lcana
Posts: 84
Joined: Wed Nov 30, 2011 4:34 pm

Re: Found in rsl.out.0003 : --- ERROR: Time step too large

Post by lcana »

Hi,
look into your conf files. Go to your_domain > conf > ems_run. The one named run_timestep.conf gives you full control of the time steps.
Best,
Luis
Post Reply