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jobsheet

yaben ([cp c] Free drift to test restarting ; 4.5)

  1. Start time: 2000/12/1, length: 10/0/3
  2. Processors: 1 * 2, Exec name: $RUNID.exe; Timestep (mins): 30 (atmos); 60 (ocean)
  3. Start dumps: $DUMPS/xahiya.da00c10
  4. Fortran mods
  5. Diags
  6. Userprestash files
  7. Status: [running]
  8. See-also: o - ocean drift
  9. Notes:
    1. Exists as 32- and 64-bit. Don't get confused.
    2. 32-bit ran out 10 years on 2002/06/14. CRUN'd for 100y.
    3. 32-bit problems [16/06/2002] traced to failure to add blokinit mod for some odd reason... then find tracer mod not in either. Oops. But of course it *must* have been present earlier or it would have crashed.
  10. History: yaben -> c -> a -> yabad -> a -> yaauo -> n -> yaasc -> yaaoa

Purpose of Run (long)

Originally to test restarting at 64-bit, which it does OK. Also CRUNs OK, reproducibly.

Now a control for free-drift.

Caution this run has (by accident) increasing GHGs. See yabeo/verify.html.

When run at 32-bit it originally failed:

  1. In tracer, in a diag calc: use omit-tracer-calc.upd to solve this.
  2. More obscurely, in blokinit, there was a JMT for a JMTm1: use blokinit.upd to fix this.

Results

At 32 bit, when restarted, I found that it died after a while (a long while: yabena.dak8790) with an FPE error which it eventually said was in ICEFREED. But when compiled with -g it disappears (well, it no longer bit-compares on restart). Ditto with extra print statements. So I couldn't track it down and said "oh sod it".

See verify.

Past last modified: 9/12/2002   /   wmc@bas.ac.uk

© Copyright Natural Environment Research Council - British Antarctic Survey 2002