Remove non-frac grid coupled tests

[DeniseWorthen]

PR Checklist

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Description

• makes nems_frac the default CPLMODE and sets FRAC_GRID=true as the default
• removes non-frac grid coupled regression tests; drops identifier "frac" from remaining test names
• reduces wall clock for cpld_debugfrac. This test runs in about 5 mins but wall clock was set at 60mins.
• reduce cpld_control_c384 to 12 hour forecast
• removes non-v16 benchmark and non-frac 35d tests
• comments out cpld_2threads test (Issue cpld_2threads test does not reproduce for fractional grid #622)
• adds ktherm and tfrz_option for setting up mushy thermodynamics in CICE ice_in. The defaults are set to current values ktherm=1 and tfrz_option=linear_salt.

Issue(s) addressed

• fixes convert 4 existing cpld_control tests to fractional grid; drop existing non-frac RT tests for S2S, S2SW #581

Testing

Pre-commit testing for gaea.intel shows that the following tests do not reproduce:

cpld_ca
cpld_satmedmf
cpld_decomp
cpld_2threads
cpld_control_wave

This is the expected result since these are the low-resolution tests which are currently running with non-frac grid. All other coupled tests pass the current develop branch comparison (develop-20210513).

A test baseline was created for the new suite of coupled tests for gaea.intel and all test passed against the test baseline.

• hera.intel
• hera.gnu
• orion.intel
• cheyenne.intel
• cheyenne.gnu
• gaea.intel
• jet.intel
• wcoss_cray
• wcoss_dell_p3

Dependencies

If testing this branch requires non-default branches in other repositories, list them. Those branches should have matching names (ideally).

Do PRs in upstream repositories need to be merged first?

• None

[DeniseWorthen]

Closed. Replacement PR #623 without wave update