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with evolve_ice turned off, beta_internal differs on restart #13

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billsacks opened this issue Jul 6, 2018 · 0 comments
Open

with evolve_ice turned off, beta_internal differs on restart #13

billsacks opened this issue Jul 6, 2018 · 0 comments
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From @billsacks on August 9, 2016 18:21

This is a low priority issue, but @whlipscomb suggests that we track it so that we can look into it at some point.

In my testing of the most recent code within CESM, I discovered that, when I turn ice evolution off (evolve_ice = .false.), restart runs fail due to differences in the beta_internal field when running with glissade. (They also fail due to differences in uflx and vflx with glide.)

Specifically, I observed this with test ERS_D_Ly3.f09_g16_gl4.TGIS2.yellowstone_pgi.cism-noevolve from r79699 on branch https://svn-ccsm-models.cgd.ucar.edu/glc/branches/develop_update_2016_07, which points to the code base in PR #58 . I also observed this in the n06 branch tag on that branch, which did calving_init even when ice evolution was off. (i.e., this problem occurs whether or not you do calving in initialization.)

Copied from original issue: E3SM-Project/cism-piscees#59
@billsacks billsacks added the bug Something isn't working label Jul 6, 2018
billsacks added a commit that referenced this issue Jun 23, 2021
@billsacks
Merge pull request #13 from NCAR/lipscomb_leguy/cism21_cleanup2
9fd8aa7 
Various pre-release changes

This PR includes a number of loosely connected changes in advance of the CISM 2.1 release. Among the changes are:

* Reorganization and updates in the test directories. The 'higher-order' directory was removed, and its subdirectories moved up to sit directly under 'tests'. ISMIP-HOM C tests now run in parallel with the more accurate which_ho_babc = 8. A MISMIP directory was added, and MISMIP3d and MISMIP+ tests were updated. A bug in the Halfar config file was fixed.

* A bug was fixed to restore exact restart for ice temperatures.

* The gradient_margin options were revised and renamed.  The new default option 1 is a hybrid between land- and marine-margin gradients, with answer changes compared to the old option 1 (and roundoff-level changes compared to the old option 3, which was removed).
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