Opened 3 years ago

Closed 2 years ago

#2620 closed help (fixed)

vn10.9 AMIP run PI control

Reported by: admg26 Owned by: um_support
Component: UKCA Keywords: UKCA, grid point storm
Cc: Platform: Monsoon2
UM Version: 10.9



Monsoon user: almin
Archive: /crum/
UM-UKCA vn10.9 Trunk
AMIP run using 1850 PI control CMIP6 emission files and start dumps.

Suite: u-ax344

Run crashes after 12 years with the following

???!!!???!!!???!!!???!!!???!!!       ERROR        ???!!!???!!!???!!!???!!!???!!!
?  Error code: 100
?  Error from routine: set_thermodynamic
?  Error message: A total of     3 points had negative mass in set_thermodynamic. This indicates the pressure fields are inconsistent between different levels and the model is about to fail.
?  Error from processor: 158
?  Error number: 38

I am confused as to why it ran for so long before falling over.


Change History (7)

comment:1 Changed 3 years ago by admg26

I am going to re-run the model with a copy of the suite. I have an idea of what might be wrong.

comment:2 Changed 3 years ago by willie

Hi Alison,

Is this working now - can we close this ticket?


comment:3 Changed 3 years ago by admg26


A copy of the suite with a few tweaks is still running but since it took 12 years to crash the last time, I am inclined to wait a bit more (it has done 9 years so far) to see if it is actually working. Would it be okay to leave the ticket open for the week? I could also reopen it if the run fails.


comment:4 Changed 3 years ago by willie

Hi Alison,

I'll leave it open.


comment:5 Changed 3 years ago by admg26


I made a copy of the suite, make a few changes and ran it (u-bb932). This still fails with the same error after 12 years.

Many thanks,

Last edited 3 years ago by admg26 (previous) (diff)

comment:6 Changed 3 years ago by admg26


I have followed the instructions for perturbing theta when there is a grid point storm and then restarted from the point where it failed. The runs appears to be going okay so far. You can probably close this ticket.


comment:7 Changed 2 years ago by willie

  • Keywords UKCA, grid point storm added; UKCA removed
  • Resolution set to fixed
  • Status changed from new to closed
Note: See TracTickets for help on using tickets.