landice/greenland test group runs tests with a coarse (20-km)
The test group includes 3 test cases, each of which has one or more steps
that are variants on
run_model (given other names in the decomposition and
restart test cases to distinguish multiple model runs), which performs time
integration of the model. There is a fourth test case,
creates a variable resolution Greenland Ice Sheet mesh, with the step
The test cases in this test group can run with either the SIA or FO velocity
solvers. Running with the FO solver requires a build of MALI that includes
Albany, but the SIA variant of the test can be run without Albany. The FO
version uses no-slip basal boundary condition. There is no integration step
for the test case
high_res_mesh test case uses the default config options below.
The other test cases do not use config options.
# number of levels in the mesh
levels = 10
# distance from ice margin to cull (km).
# Set to a value <= 0 if you do not want
# to cull based on distance from margin.
cull_distance = 10.0
# mesh density parameters
# minimum cell spacing (meters)
min_spac = 3.e3
# maximum cell spacing (meters)
max_spac = 30.e3
# log10 of max speed for cell spacing
high_log_speed = 2.5
# log10 of min speed for cell spacing
low_log_speed = 0.75
# distance at which cell spacing = max_spac
high_dist = 1.e5
# distance within which cell spacing = min_spac
low_dist = 5.e4
# mesh density functions
use_speed = True
use_dist_to_grounding_line = False
use_dist_to_edge = True
landice/greenland/smoke_test is the default version of the greenland test
case for a short (5-day) test run.
landice/greenland/decomposition_test runs short (5-day) integrations of the
model forward in time on 1 (
1proc_run step) and then on 4 cores
4proc_run step) to make sure the resulting prognostic variables are
bit-for-bit identical between the two runs.
landice/greenland/2000m/restart_test first run a short (5-day) integration
of the model forward in time (
full_run step). Then, a second step
restart_run) performs a 3-day, then a 2-day run, where the second begins
from a restart file saved by the first. Prognostic variables are compared
between the “full” and “restart” runs at year 2 to make sure they are
landice/greenland/high_res_mesh creates a variable resolution mesh based
on the the config options listed above. This will not be the same as the
pre-generated 20 km mesh used in the other three test cases because it uses
a newer version of Jigsaw. Note that the basal friction optimization is
performed separately and is not part of this test case.