move run to CPU

.buildkite/pipeline.yml

@@ -123,6 +123,10 @@ steps:
         agents:
           slurm_mem: 16G
 
+      - label: "Canopy Implicit Stepping CPU"
+        command: "julia --color=yes --project=.buildkite experiments/standalone/Vegetation/timestep_test.jl"
+        artifact_paths: "experiments/standalone/Vegetation/errors.png"
+
   - group: "Experiments on GPU"
     steps:
       - label: "Richards Runoff GPU"
@@ -134,15 +138,6 @@ steps:
         env:
           CLIMACOMMS_DEVICE: "CUDA"
 
-      - label: "Canopy Implicit Stepping GPU"
-        command: "julia --color=yes --project=.buildkite experiments/standalone/Vegetation/timestep_test.jl"
-        artifact_paths: "experiments/standalone/Vegetation/errors.png"
-        agents:
-          slurm_ntasks: 1
-          slurm_gres: "gpu:1"
-        env:
-          CLIMACOMMS_DEVICE: "CUDA"
-
   - group: "ClimaLandSimulations"
     steps:
       - label: "Ozark figures Makie"

experiments/long_runs/land.jl

@@ -638,7 +638,7 @@ end
 function setup_and_solve_problem(; greet = false)
 
     t0 = 0.0
-    tf = 60 * 60.0 * 24 * 60 # keep short until it runs! * 365
+    tf = 60 * 60.0 * 24 * 7 # keep short until it runs! * 365
     Δt = 900.0
     nelements = (101, 15)
     if greet

src/shared_utilities/models.jl

@@ -211,6 +211,19 @@ function make_imp_tendency(model::AbstractImExModel)
     return imp_tendency!
 end
 
+"""
+    make_imp_tendency(model::AbstractModel)
+
+Returns an `imp_tendency` that does nothing. This model type is not
+stepped explicity.
+"""
+function make_imp_tendency(model::AbstractModel)
+    compute_imp_tendency! = make_compute_imp_tendency(model)
+    function imp_tendency!(dY, Y, p, t)
+        compute_imp_tendency!(dY, Y, p, t)
+    end
+end
+
 """
     make_exp_tendency(model::AbstractModel)