ESCOMP / ESCOMP/SimpleLand

Historical I case gets NaN in output after 422 days...

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bug
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Fortran
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Description

The test case...

SMS_Ly2.f19_g17.IHistClm45BgcQianGs.cheyenne_intel.clm-realistic_fromCLM5_1850

Fails after 20081 time-steps (just over 422 days), with a NaN in the output.

A grep for ERROR in the cesm.log shows the following
```
812: lnd_export ERROR: One or more of the output from CLM to t
812: ERROR: Unknown error submitted to shr_abort_abort.
812:MPT ERROR: Rank 812(g:812) is aborting with error code 1001.
812:MPT: header=header@entry=0x7ffdc60d0160 "MPT ERROR: Rank 812(g:812) is aborting with error code 1001.\n\tProcess ID: 23290, Host: r9i1n22, Program: /glade/scratch/erik/SMS_Ly2.f19_g17.IHistClm45BgcQianGs.cheyenne_intel.clm-realistic_fromCLM5_1"...) at sig.c:340
-1:MPT ERROR: MPI_COMM_WORLD rank 812 has terminated without calling MPI_Finalize()
```

The cesm.log is so large that I can't read it in memory in the editor on Cheyenne -- it kicks me out.

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